Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

Heat equation

Index Heat equation

The heat equation is a parabolic partial differential equation that describes the distribution of heat (or variation in temperature) in a given region over time. [1]

120 relations: Action potential, Addison-Wesley, Atiyah–Singer index theorem, Black–Scholes model, Boundary value problem, Brownian motion, C0-semigroup, Caloric polynomial, Cambridge University Press, Cartesian coordinate system, Cauchy problem, Concentration, Conservation of energy, Convolution, Coordinate system, Crank–Nicolson method, Curve-shortening flow, Density, Derivative, Diagonal matrix, Differential equation, Diffusion, Diffusion equation, Dimension, Dirac delta function, Dirichlet boundary condition, Dirichlet problem, Divergence theorem, Eigenvalues and eigenvectors, Electrostatics, Elliptic operator, Energy, Even and odd functions, F. J. Duarte, Finance, Finite difference, First law of thermodynamics, Fokker–Planck equation, Function (mathematics), Fundamental lemma of calculus of variations, Fundamental solution, Fundamental theorem of calculus, Green's function, Green's function number, Grigori Perelman, Harmonic analysis, Harmonic function, Heat, Heat capacity, Heat equation, ..., Heat flux, Heat kernel, Hyperbolic partial differential equation, Imaginary unit, Inner product space, Isotropy, Joseph Fourier, Kelvin, Laplace operator, Laplace transform, Laplace's equation, Laplacian matrix, Light cone, Linear combination, Linear map, Manifold, Mass, Mathematical finance, Mathematical model, Mathematics, Matrix (mathematics), Maximum principle, Method of images, Molecular diffusion, Mollifier, Neumann boundary condition, Option (finance), Ornstein–Uhlenbeck process, Orthonormality, Parabolic partial differential equation, Planck constant, Poincaré conjecture, Poisson's equation, Polymer, Positive-definite matrix, Probability density function, Probability theory, Radon–Nikodym theorem, Random walk, Relativistic heat conduction, Ricci flow, Richard S. Hamilton, Riemannian geometry, Robin boundary condition, Scale space, Schrödinger equation, Self-adjoint, Self-adjoint operator, Separation of variables, Special relativity, Spectral theorem, Spectral theory, Stefan–Boltzmann constant, Stefan–Boltzmann law, Stochastic differential equation, Stochastic process, Symmetry, Temperature, Thermal conduction, Thermal conductivity, Thermal diffusivity, Thermodynamic equilibrium, Thermodynamic temperature, Time, Topology, Wave function, Wave propagation, Weierstrass transform, Well-posed problem, Wiener process. Expand index (70 more) »

Action potential

In physiology, an action potential occurs when the membrane potential of a specific axon location rapidly rises and falls: this depolarisation then causes adjacent locations to similarly depolarise.

New!!: Heat equation and Action potential · See more »


Addison-Wesley is a publisher of textbooks and computer literature.

New!!: Heat equation and Addison-Wesley · See more »

Atiyah–Singer index theorem

In differential geometry, the Atiyah–Singer index theorem, proved by, states that for an elliptic differential operator on a compact manifold, the analytical index (related to the dimension of the space of solutions) is equal to the topological index (defined in terms of some topological data).

New!!: Heat equation and Atiyah–Singer index theorem · See more »

Black–Scholes model

The Black–Scholes or Black–Scholes–Merton model is a mathematical model for the dynamics of a financial market containing derivative investment instruments.

New!!: Heat equation and Black–Scholes model · See more »

Boundary value problem

In mathematics, in the field of differential equations, a boundary value problem is a differential equation together with a set of additional constraints, called the boundary conditions.

New!!: Heat equation and Boundary value problem · See more »

Brownian motion

Brownian motion or pedesis (from πήδησις "leaping") is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving molecules in the fluid.

New!!: Heat equation and Brownian motion · See more »


In mathematics, a C0-semigroup, also known as a strongly continuous one-parameter semigroup, is a generalization of the exponential function.

New!!: Heat equation and C0-semigroup · See more »

Caloric polynomial

In differential equations, the mth-degree caloric polynomial (or heat polynomial) is a "parabolically m-homogeneous" polynomial Pm(x, t) that satisfies the heat equation "Parabolically m-homogeneous" means The polynomial is given by It is unique up to a factor.

New!!: Heat equation and Caloric polynomial · See more »

Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

New!!: Heat equation and Cambridge University Press · See more »

Cartesian coordinate system

A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular directed lines, measured in the same unit of length.

New!!: Heat equation and Cartesian coordinate system · See more »

Cauchy problem

A Cauchy problem in mathematics asks for the solution of a partial differential equation that satisfies certain conditions that are given on a hypersurface in the domain.

New!!: Heat equation and Cauchy problem · See more »


In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture.

New!!: Heat equation and Concentration · See more »

Conservation of energy

In physics, the law of conservation of energy states that the total energy of an isolated system remains constant, it is said to be ''conserved'' over time.

New!!: Heat equation and Conservation of energy · See more »


In mathematics (and, in particular, functional analysis) convolution is a mathematical operation on two functions (f and g) to produce a third function, that is typically viewed as a modified version of one of the original functions, giving the integral of the pointwise multiplication of the two functions as a function of the amount that one of the original functions is translated.

New!!: Heat equation and Convolution · See more »

Coordinate system

In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

New!!: Heat equation and Coordinate system · See more »

Crank–Nicolson method

In numerical analysis, the Crank–Nicolson method is a finite difference method used for numerically solving the heat equation and similar partial differential equations.

New!!: Heat equation and Crank–Nicolson method · See more »

Curve-shortening flow

In mathematics, the curve-shortening flow is a process that modifies a smooth curve in the Euclidean plane by moving its points perpendicularly to the curve at a speed proportional to the curvature.

New!!: Heat equation and Curve-shortening flow · See more »


The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

New!!: Heat equation and Density · See more »


The derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value).

New!!: Heat equation and Derivative · See more »

Diagonal matrix

In linear algebra, a diagonal matrix is a matrix in which the entries outside the main diagonal are all zero.

New!!: Heat equation and Diagonal matrix · See more »

Differential equation

A differential equation is a mathematical equation that relates some function with its derivatives.

New!!: Heat equation and Differential equation · See more »


Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.

New!!: Heat equation and Diffusion · See more »

Diffusion equation

The diffusion equation is a partial differential equation.

New!!: Heat equation and Diffusion equation · See more »


In physics and mathematics, the dimension of a mathematical space (or object) is informally defined as the minimum number of coordinates needed to specify any point within it.

New!!: Heat equation and Dimension · See more »

Dirac delta function

In mathematics, the Dirac delta function (function) is a generalized function or distribution introduced by the physicist Paul Dirac.

New!!: Heat equation and Dirac delta function · See more »

Dirichlet boundary condition

In mathematics, the Dirichlet (or first-type) boundary condition is a type of boundary condition, named after Peter Gustav Lejeune Dirichlet (1805–1859).

New!!: Heat equation and Dirichlet boundary condition · See more »

Dirichlet problem

In mathematics, a Dirichlet problem is the problem of finding a function which solves a specified partial differential equation (PDE) in the interior of a given region that takes prescribed values on the boundary of the region.

New!!: Heat equation and Dirichlet problem · See more »

Divergence theorem

In vector calculus, the divergence theorem, also known as Gauss's theorem or Ostrogradsky's theorem, reprinted in is a result that relates the flow (that is, flux) of a vector field through a surface to the behavior of the vector field inside the surface.

New!!: Heat equation and Divergence theorem · See more »

Eigenvalues and eigenvectors

In linear algebra, an eigenvector or characteristic vector of a linear transformation is a non-zero vector that changes by only a scalar factor when that linear transformation is applied to it.

New!!: Heat equation and Eigenvalues and eigenvectors · See more »


Electrostatics is a branch of physics that studies electric charges at rest.

New!!: Heat equation and Electrostatics · See more »

Elliptic operator

In the theory of partial differential equations, elliptic operators are differential operators that generalize the Laplace operator.

New!!: Heat equation and Elliptic operator · See more »


In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.

New!!: Heat equation and Energy · See more »

Even and odd functions

In mathematics, even functions and odd functions are functions which satisfy particular symmetry relations, with respect to taking additive inverses.

New!!: Heat equation and Even and odd functions · See more »

F. J. Duarte

Francisco Javier "Frank" Duarte (born c. 1954) is a laser physicist and author/editor of several well-known books on tunable lasers and quantum optics.

New!!: Heat equation and F. J. Duarte · See more »


Finance is a field that is concerned with the allocation (investment) of assets and liabilities (known as elements of the balance statement) over space and time, often under conditions of risk or uncertainty.

New!!: Heat equation and Finance · See more »

Finite difference

A finite difference is a mathematical expression of the form.

New!!: Heat equation and Finite difference · See more »

First law of thermodynamics

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems.

New!!: Heat equation and First law of thermodynamics · See more »

Fokker–Planck equation

In statistical mechanics, the Fokker–Planck equation is a partial differential equation that describes the time evolution of the probability density function of the velocity of a particle under the influence of drag forces and random forces, as in Brownian motion.

New!!: Heat equation and Fokker–Planck equation · See more »

Function (mathematics)

In mathematics, a function was originally the idealization of how a varying quantity depends on another quantity.

New!!: Heat equation and Function (mathematics) · See more »

Fundamental lemma of calculus of variations

In mathematics, specifically in the calculus of variations, a variation of a function can be concentrated on an arbitrarily small interval, but not a single point.

New!!: Heat equation and Fundamental lemma of calculus of variations · See more »

Fundamental solution

In mathematics, a fundamental solution for a linear partial differential operator is a formulation in the language of distribution theory of the older idea of a Green's function (although unlike Green's functions, fundamental solutions do not address boundary conditions).

New!!: Heat equation and Fundamental solution · See more »

Fundamental theorem of calculus

The fundamental theorem of calculus is a theorem that links the concept of differentiating a function with the concept of integrating a function.

New!!: Heat equation and Fundamental theorem of calculus · See more »

Green's function

In mathematics, a Green's function is the impulse response of an inhomogeneous linear differential equation defined on a domain, with specified initial conditions or boundary conditions.

New!!: Heat equation and Green's function · See more »

Green's function number

In mathematical heat conduction, the Green's function number is used to uniquely categorize certain fundamental solutions of the heat equation to make existing solutions easier to identify, store, and retrieve.

New!!: Heat equation and Green's function number · See more »

Grigori Perelman

Grigori Yakovlevich Perelman (a; born 13 June 1966) is a Russian mathematician.

New!!: Heat equation and Grigori Perelman · See more »

Harmonic analysis

Harmonic analysis is a branch of mathematics concerned with the representation of functions or signals as the superposition of basic waves, and the study of and generalization of the notions of Fourier series and Fourier transforms (i.e. an extended form of Fourier analysis).

New!!: Heat equation and Harmonic analysis · See more »

Harmonic function

In mathematics, mathematical physics and the theory of stochastic processes, a harmonic function is a twice continuously differentiable function f: U → R where U is an open subset of Rn that satisfies Laplace's equation, i.e. everywhere on U. This is usually written as or.

New!!: Heat equation and Harmonic function · See more »


In thermodynamics, heat is energy transferred from one system to another as a result of thermal interactions.

New!!: Heat equation and Heat · See more »

Heat capacity

Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to (or removed from) an object to the resulting temperature change.

New!!: Heat equation and Heat capacity · See more »

Heat equation

The heat equation is a parabolic partial differential equation that describes the distribution of heat (or variation in temperature) in a given region over time.

New!!: Heat equation and Heat equation · See more »

Heat flux

Heat flux or thermal flux, sometimes also referred to as heat flux density or heat flow rate intensity is a flow of energy per unit of area per unit of time.

New!!: Heat equation and Heat flux · See more »

Heat kernel

In the mathematical study of heat conduction and diffusion, a heat kernel is the fundamental solution to the heat equation on a specified domain with appropriate boundary conditions.

New!!: Heat equation and Heat kernel · See more »

Hyperbolic partial differential equation

In mathematics, a hyperbolic partial differential equation of order n is a partial differential equation (PDE) that, roughly speaking, has a well-posed initial value problem for the first derivatives.

New!!: Heat equation and Hyperbolic partial differential equation · See more »

Imaginary unit

The imaginary unit or unit imaginary number is a solution to the quadratic equation.

New!!: Heat equation and Imaginary unit · See more »

Inner product space

In linear algebra, an inner product space is a vector space with an additional structure called an inner product.

New!!: Heat equation and Inner product space · See more »


Isotropy is uniformity in all orientations; it is derived from the Greek isos (ἴσος, "equal") and tropos (τρόπος, "way").

New!!: Heat equation and Isotropy · See more »

Joseph Fourier

Jean-Baptiste Joseph Fourier (21 March 1768 – 16 May 1830) was a French mathematician and physicist born in Auxerre and best known for initiating the investigation of Fourier series and their applications to problems of heat transfer and vibrations.

New!!: Heat equation and Joseph Fourier · See more »


The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.

New!!: Heat equation and Kelvin · See more »

Laplace operator

In mathematics, the Laplace operator or Laplacian is a differential operator given by the divergence of the gradient of a function on Euclidean space.

New!!: Heat equation and Laplace operator · See more »

Laplace transform

In mathematics, the Laplace transform is an integral transform named after its discoverer Pierre-Simon Laplace.

New!!: Heat equation and Laplace transform · See more »

Laplace's equation

In mathematics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace who first studied its properties.

New!!: Heat equation and Laplace's equation · See more »

Laplacian matrix

In the mathematical field of graph theory, the Laplacian matrix, sometimes called admittance matrix, Kirchhoff matrix or discrete Laplacian, is a matrix representation of a graph.

New!!: Heat equation and Laplacian matrix · See more »

Light cone

In special and general relativity, a light cone is the path that a flash of light, emanating from a single event (localized to a single point in space and a single moment in time) and traveling in all directions, would take through spacetime.

New!!: Heat equation and Light cone · See more »

Linear combination

In mathematics, a linear combination is an expression constructed from a set of terms by multiplying each term by a constant and adding the results (e.g. a linear combination of x and y would be any expression of the form ax + by, where a and b are constants).

New!!: Heat equation and Linear combination · See more »

Linear map

In mathematics, a linear map (also called a linear mapping, linear transformation or, in some contexts, linear function) is a mapping between two modules (including vector spaces) that preserves (in the sense defined below) the operations of addition and scalar multiplication.

New!!: Heat equation and Linear map · See more »


In mathematics, a manifold is a topological space that locally resembles Euclidean space near each point.

New!!: Heat equation and Manifold · See more »


Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.

New!!: Heat equation and Mass · See more »

Mathematical finance

Mathematical finance, also known as quantitative finance, is a field of applied mathematics, concerned with mathematical modeling of financial markets.

New!!: Heat equation and Mathematical finance · See more »

Mathematical model

A mathematical model is a description of a system using mathematical concepts and language.

New!!: Heat equation and Mathematical model · See more »


Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.

New!!: Heat equation and Mathematics · See more »

Matrix (mathematics)

In mathematics, a matrix (plural: matrices) is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

New!!: Heat equation and Matrix (mathematics) · See more »

Maximum principle

In mathematics, the maximum principle is a property of solutions to certain partial differential equations, of the elliptic and parabolic types.

New!!: Heat equation and Maximum principle · See more »

Method of images

The method of images (or method of mirror images) is a mathematical tool for solving differential equations, in which the domain of the sought function is extended by the addition of its mirror image with respect to a symmetry hyperplane.

New!!: Heat equation and Method of images · See more »

Molecular diffusion

Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero.

New!!: Heat equation and Molecular diffusion · See more »


In mathematics, mollifiers (also known as approximations to the identity) are smooth functions with special properties, used for example in distribution theory to create sequences of smooth functions approximating nonsmooth (generalized) functions, via convolution.

New!!: Heat equation and Mollifier · See more »

Neumann boundary condition

In mathematics, the Neumann (or second-type) boundary condition is a type of boundary condition, named after Carl Neumann.

New!!: Heat equation and Neumann boundary condition · See more »

Option (finance)

In finance, an option is a contract which gives the buyer (the owner or holder of the option) the right, but not the obligation, to buy or sell an underlying asset or instrument at a specified strike price on a specified date, depending on the form of the option.

New!!: Heat equation and Option (finance) · See more »

Ornstein–Uhlenbeck process

In mathematics, the Ornstein–Uhlenbeck process (named after Leonard Ornstein and George Eugene Uhlenbeck), is a stochastic process that, roughly speaking, describes the velocity of a massive Brownian particle under the influence of friction.

New!!: Heat equation and Ornstein–Uhlenbeck process · See more »


In linear algebra, two vectors in an inner product space are orthonormal if they are orthogonal and unit vectors.

New!!: Heat equation and Orthonormality · See more »

Parabolic partial differential equation

A parabolic partial differential equation is a type of partial differential equation (PDE).

New!!: Heat equation and Parabolic partial differential equation · See more »

Planck constant

The Planck constant (denoted, also called Planck's constant) is a physical constant that is the quantum of action, central in quantum mechanics.

New!!: Heat equation and Planck constant · See more »

Poincaré conjecture

In mathematics, the Poincaré conjecture is a theorem about the characterization of the 3-sphere, which is the hypersphere that bounds the unit ball in four-dimensional space.

New!!: Heat equation and Poincaré conjecture · See more »

Poisson's equation

In mathematics, Poisson's equation is a partial differential equation of elliptic type with broad utility in mechanical engineering and theoretical physics.

New!!: Heat equation and Poisson's equation · See more »


A polymer (Greek poly-, "many" + -mer, "part") is a large molecule, or macromolecule, composed of many repeated subunits.

New!!: Heat equation and Polymer · See more »

Positive-definite matrix

In linear algebra, a symmetric real matrix M is said to be positive definite if the scalar z^Mz is strictly positive for every non-zero column vector z of n real numbers.

New!!: Heat equation and Positive-definite matrix · See more »

Probability density function

In probability theory, a probability density function (PDF), or density of a continuous random variable, is a function, whose value at any given sample (or point) in the sample space (the set of possible values taken by the random variable) can be interpreted as providing a relative likelihood that the value of the random variable would equal that sample.

New!!: Heat equation and Probability density function · See more »

Probability theory

Probability theory is the branch of mathematics concerned with probability.

New!!: Heat equation and Probability theory · See more »

Radon–Nikodym theorem

In mathematics, the Radon–Nikodym theorem is a result in measure theory.

New!!: Heat equation and Radon–Nikodym theorem · See more »

Random walk

A random walk is a mathematical object, known as a stochastic or random process, that describes a path that consists of a succession of random steps on some mathematical space such as the integers.

New!!: Heat equation and Random walk · See more »

Relativistic heat conduction

Relativistic heat conduction refers to the modelling of heat conduction (and similar diffusion processes) in a way not compatible with special relativity.

New!!: Heat equation and Relativistic heat conduction · See more »

Ricci flow

In differential geometry, the Ricci flow (Italian) is an intrinsic geometric flow.

New!!: Heat equation and Ricci flow · See more »

Richard S. Hamilton

Richard Streit Hamilton (born 1943) is Davies Professor of Mathematics at Columbia University.

New!!: Heat equation and Richard S. Hamilton · See more »

Riemannian geometry

Riemannian geometry is the branch of differential geometry that studies Riemannian manifolds, smooth manifolds with a Riemannian metric, i.e. with an inner product on the tangent space at each point that varies smoothly from point to point.

New!!: Heat equation and Riemannian geometry · See more »

Robin boundary condition

In mathematics, the Robin boundary condition (properly), or third type boundary condition, is a type of boundary condition, named after Victor Gustave Robin (1855–1897).

New!!: Heat equation and Robin boundary condition · See more »

Scale space

Scale-space theory is a framework for multi-scale signal representation developed by the computer vision, image processing and signal processing communities with complementary motivations from physics and biological vision.

New!!: Heat equation and Scale space · See more »

Schrödinger equation

In quantum mechanics, the Schrödinger equation is a mathematical equation that describes the changes over time of a physical system in which quantum effects, such as wave–particle duality, are significant.

New!!: Heat equation and Schrödinger equation · See more »


In mathematics, an element x of a *-algebra is self-adjoint if x^*.

New!!: Heat equation and Self-adjoint · See more »

Self-adjoint operator

In mathematics, a self-adjoint operator on a finite-dimensional complex vector space V with inner product \langle\cdot,\cdot\rangle is a linear map A (from V to itself) that is its own adjoint: \langle Av,w\rangle.

New!!: Heat equation and Self-adjoint operator · See more »

Separation of variables

In mathematics, separation of variables (also known as the Fourier method) is any of several methods for solving ordinary and partial differential equations, in which algebra allows one to rewrite an equation so that each of two variables occurs on a different side of the equation.

New!!: Heat equation and Separation of variables · See more »

Special relativity

In physics, special relativity (SR, also known as the special theory of relativity or STR) is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time.

New!!: Heat equation and Special relativity · See more »

Spectral theorem

In mathematics, particularly linear algebra and functional analysis, a spectral theorem is a result about when a linear operator or matrix can be diagonalized (that is, represented as a diagonal matrix in some basis).

New!!: Heat equation and Spectral theorem · See more »

Spectral theory

In mathematics, spectral theory is an inclusive term for theories extending the eigenvector and eigenvalue theory of a single square matrix to a much broader theory of the structure of operators in a variety of mathematical spaces.

New!!: Heat equation and Spectral theory · See more »

Stefan–Boltzmann constant

The Stefan–Boltzmann constant (also Stefan's constant), a physical constant denoted by the Greek letter ''σ'' (sigma), is the constant of proportionality in the Stefan–Boltzmann law: "the total intensity radiated over all wavelengths increases as the temperature increases", of a black body which is proportional to the fourth power of the thermodynamic temperature.

New!!: Heat equation and Stefan–Boltzmann constant · See more »

Stefan–Boltzmann law

The Stefan–Boltzmann law describes the power radiated from a black body in terms of its temperature.

New!!: Heat equation and Stefan–Boltzmann law · See more »

Stochastic differential equation

A stochastic differential equation (SDE) is a differential equation in which one or more of the terms is a stochastic process, resulting in a solution which is also a stochastic process.

New!!: Heat equation and Stochastic differential equation · See more »

Stochastic process

--> In probability theory and related fields, a stochastic or random process is a mathematical object usually defined as a collection of random variables.

New!!: Heat equation and Stochastic process · See more »


Symmetry (from Greek συμμετρία symmetria "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance.

New!!: Heat equation and Symmetry · See more »


Temperature is a physical quantity expressing hot and cold.

New!!: Heat equation and Temperature · See more »

Thermal conduction

Thermal conduction is the transfer of heat (internal energy) by microscopic collisions of particles and movement of electrons within a body.

New!!: Heat equation and Thermal conduction · See more »

Thermal conductivity

Thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat.

New!!: Heat equation and Thermal conductivity · See more »

Thermal diffusivity

In heat transfer analysis, thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure.

New!!: Heat equation and Thermal diffusivity · See more »

Thermodynamic equilibrium

Thermodynamic equilibrium is an axiomatic concept of thermodynamics.

New!!: Heat equation and Thermodynamic equilibrium · See more »

Thermodynamic temperature

Thermodynamic temperature is the absolute measure of temperature and is one of the principal parameters of thermodynamics.

New!!: Heat equation and Thermodynamic temperature · See more »


Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.

New!!: Heat equation and Time · See more »


In mathematics, topology (from the Greek τόπος, place, and λόγος, study) is concerned with the properties of space that are preserved under continuous deformations, such as stretching, crumpling and bending, but not tearing or gluing.

New!!: Heat equation and Topology · See more »

Wave function

A wave function in quantum physics is a mathematical description of the quantum state of an isolated quantum system.

New!!: Heat equation and Wave function · See more »

Wave propagation

Wave propagation is any of the ways in which waves travel.

New!!: Heat equation and Wave propagation · See more »

Weierstrass transform

In mathematics, the Weierstrass transform of a function, named after Karl Weierstrass, is a "smoothed" version of obtained by averaging the values of, weighted with a Gaussian centered at x.

New!!: Heat equation and Weierstrass transform · See more »

Well-posed problem

The mathematical term well-posed problem stems from a definition given by Jacques Hadamard.

New!!: Heat equation and Well-posed problem · See more »

Wiener process

In mathematics, the Wiener process is a continuous-time stochastic process named in honor of Norbert Wiener.

New!!: Heat equation and Wiener process · See more »

Redirects here:

Heat Conduction Equation, Heat Diffusion, Heat Diffusion Equation, Heat diffusion, Heat flow equation, Particle diffusion.


[1] https://en.wikipedia.org/wiki/Heat_equation

Hey! We are on Facebook now! »