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

Current (mathematics)

Index Current (mathematics)

In mathematics, more particularly in functional analysis, differential topology, and geometric measure theory, a k-current in the sense of Georges de Rham is a functional on the space of compactly supported differential k-forms, on a smooth manifold M. Formally currents behave like Schwartz distributions on a space of differential forms. [1]

45 relations: Boundary (topology), Chain complex, Continuous function, Differentiable manifold, Differential form, Differential geometry, Differential topology, Dirac delta function, Directional derivative, Distribution (mathematics), Eilenberg–Steenrod axioms, Exterior derivative, Functional analysis, Geometric measure theory, Georges de Rham, Herbert Federer, Homological integration, Homology (mathematics), Integral, Limit point, Linear form, Linear subspace, M, Manifold, Mathematics, Measure (mathematics), Multipole expansion, Norm (mathematics), Open set, Orientation (vector space), Oxford University Press, Princeton University Press, Real number, Rectifiable set, Regular measure, Riesz representation theorem, Sequence, Signed measure, Springer Science+Business Media, Stokes' theorem, Support (mathematics), Tensor (intrinsic definition), Varifold, Vector space, Weak topology.

Boundary (topology)

In topology and mathematics in general, the boundary of a subset S of a topological space X is the set of points which can be approached both from S and from the outside of S. More precisely, it is the set of points in the closure of S not belonging to the interior of S. An element of the boundary of S is called a boundary point of S. The term boundary operation refers to finding or taking the boundary of a set.

New!!: Current (mathematics) and Boundary (topology) · See more »

Chain complex

In mathematics, a chain complex is an algebraic structure that consists of a sequence of abelian groups (or modules) and a sequence of homomorphisms between consecutive groups such that the image of each homomorphism is included in the kernel of the next.

New!!: Current (mathematics) and Chain complex · See more »

Continuous function

In mathematics, a continuous function is a function for which sufficiently small changes in the input result in arbitrarily small changes in the output.

New!!: Current (mathematics) and Continuous function · See more »

Differentiable manifold

In mathematics, a differentiable manifold (also differential manifold) is a type of manifold that is locally similar enough to a linear space to allow one to do calculus.

New!!: Current (mathematics) and Differentiable manifold · See more »

Differential form

In the mathematical fields of differential geometry and tensor calculus, differential forms are an approach to multivariable calculus that is independent of coordinates.

New!!: Current (mathematics) and Differential form · See more »

Differential geometry

Differential geometry is a mathematical discipline that uses the techniques of differential calculus, integral calculus, linear algebra and multilinear algebra to study problems in geometry.

New!!: Current (mathematics) and Differential geometry · See more »

Differential topology

In mathematics, differential topology is the field dealing with differentiable functions on differentiable manifolds.

New!!: Current (mathematics) and Differential topology · 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!!: Current (mathematics) and Dirac delta function · See more »

Directional derivative

In mathematics, the directional derivative of a multivariate differentiable function along a given vector v at a given point x intuitively represents the instantaneous rate of change of the function, moving through x with a velocity specified by v. It therefore generalizes the notion of a partial derivative, in which the rate of change is taken along one of the curvilinear coordinate curves, all other coordinates being constant.

New!!: Current (mathematics) and Directional derivative · See more »

Distribution (mathematics)

Distributions (or generalized functions) are objects that generalize the classical notion of functions in mathematical analysis.

New!!: Current (mathematics) and Distribution (mathematics) · See more »

Eilenberg–Steenrod axioms

In mathematics, specifically in algebraic topology, the Eilenberg–Steenrod axioms are properties that homology theories of topological spaces have in common.

New!!: Current (mathematics) and Eilenberg–Steenrod axioms · See more »

Exterior derivative

On a differentiable manifold, the exterior derivative extends the concept of the differential of a function to differential forms of higher degree.

New!!: Current (mathematics) and Exterior derivative · See more »

Functional analysis

Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (e.g. inner product, norm, topology, etc.) and the linear functions defined on these spaces and respecting these structures in a suitable sense.

New!!: Current (mathematics) and Functional analysis · See more »

Geometric measure theory

In mathematics, geometric measure theory (GMT) is the study of geometric properties of sets (typically in Euclidean space) through measure theory.

New!!: Current (mathematics) and Geometric measure theory · See more »

Georges de Rham

Georges de Rham (10 September 1903 – 9 October 1990) was a Swiss mathematician, known for his contributions to differential topology.

New!!: Current (mathematics) and Georges de Rham · See more »

Herbert Federer

Herbert Federer (July 23, 1920 – April 21, 2010) was an American mathematician.

New!!: Current (mathematics) and Herbert Federer · See more »

Homological integration

In the mathematical fields of differential geometry and geometric measure theory, homological integration or geometric integration is a method for extending the notion of the integral to manifolds.

New!!: Current (mathematics) and Homological integration · See more »

Homology (mathematics)

In mathematics, homology is a general way of associating a sequence of algebraic objects such as abelian groups or modules to other mathematical objects such as topological spaces.

New!!: Current (mathematics) and Homology (mathematics) · See more »

Integral

In mathematics, an integral assigns numbers to functions in a way that can describe displacement, area, volume, and other concepts that arise by combining infinitesimal data.

New!!: Current (mathematics) and Integral · See more »

Limit point

In mathematics, a limit point (or cluster point or accumulation point) of a set S in a topological space X is a point x that can be "approximated" by points of S in the sense that every neighbourhood of x with respect to the topology on X also contains a point of S other than x itself.

New!!: Current (mathematics) and Limit point · See more »

Linear form

In linear algebra, a linear functional or linear form (also called a one-form or covector) is a linear map from a vector space to its field of scalars.

New!!: Current (mathematics) and Linear form · See more »

Linear subspace

In linear algebra and related fields of mathematics, a linear subspace, also known as a vector subspace, or, in the older literature, a linear manifold, is a vector space that is a subset of some other (higher-dimension) vector space.

New!!: Current (mathematics) and Linear subspace · See more »

M

M (named em) is the thirteenth letter of the modern English alphabet and the ISO basic Latin alphabet.

New!!: Current (mathematics) and M · See more »

Manifold

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

New!!: Current (mathematics) and Manifold · See more »

Mathematics

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

New!!: Current (mathematics) and Mathematics · See more »

Measure (mathematics)

In mathematical analysis, a measure on a set is a systematic way to assign a number to each suitable subset of that set, intuitively interpreted as its size.

New!!: Current (mathematics) and Measure (mathematics) · See more »

Multipole expansion

A multipole expansion is a mathematical series representing a function that depends on angles—usually the two angles on a sphere.

New!!: Current (mathematics) and Multipole expansion · See more »

Norm (mathematics)

In linear algebra, functional analysis, and related areas of mathematics, a norm is a function that assigns a strictly positive length or size to each vector in a vector space—save for the zero vector, which is assigned a length of zero.

New!!: Current (mathematics) and Norm (mathematics) · See more »

Open set

In topology, an open set is an abstract concept generalizing the idea of an open interval in the real line.

New!!: Current (mathematics) and Open set · See more »

Orientation (vector space)

In mathematics, orientation is a geometric notion that in two dimensions allows one to say when a cycle goes around clockwise or counterclockwise, and in three dimensions when a figure is left-handed or right-handed.

New!!: Current (mathematics) and Orientation (vector space) · See more »

Oxford University Press

Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.

New!!: Current (mathematics) and Oxford University Press · See more »

Princeton University Press

Princeton University Press is an independent publisher with close connections to Princeton University.

New!!: Current (mathematics) and Princeton University Press · See more »

Real number

In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line.

New!!: Current (mathematics) and Real number · See more »

Rectifiable set

In mathematics, a rectifiable set is a set that is smooth in a certain measure-theoretic sense.

New!!: Current (mathematics) and Rectifiable set · See more »

Regular measure

In mathematics, a regular measure on a topological space is a measure for which every measurable set can be approximated from above by open measurable sets and from below by compact measurable sets.

New!!: Current (mathematics) and Regular measure · See more »

Riesz representation theorem

There are several well-known theorems in functional analysis known as the Riesz representation theorem.

New!!: Current (mathematics) and Riesz representation theorem · See more »

Sequence

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed.

New!!: Current (mathematics) and Sequence · See more »

Signed measure

In mathematics, signed measure is a generalization of the concept of measure by allowing it to have negative values.

New!!: Current (mathematics) and Signed measure · See more »

Springer Science+Business Media

Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.

New!!: Current (mathematics) and Springer Science+Business Media · See more »

Stokes' theorem

In vector calculus, and more generally differential geometry, Stokes' theorem (also called the generalized Stokes theorem or the Stokes–Cartan theorem) is a statement about the integration of differential forms on manifolds, which both simplifies and generalizes several theorems from vector calculus.

New!!: Current (mathematics) and Stokes' theorem · See more »

Support (mathematics)

In mathematics, the support of a real-valued function f is the subset of the domain containing those elements which are not mapped to zero.

New!!: Current (mathematics) and Support (mathematics) · See more »

Tensor (intrinsic definition)

In mathematics, the modern component-free approach to the theory of a tensor views a tensor as an abstract object, expressing some definite type of multi-linear concept.

New!!: Current (mathematics) and Tensor (intrinsic definition) · See more »

Varifold

In mathematics, a varifold is, loosely speaking, a measure-theoretic generalization of the concept of a differentiable manifold, by replacing differentiability requirements with those provided by rectifiable sets, while maintaining the general algebraic structure usually seen in differential geometry.

New!!: Current (mathematics) and Varifold · See more »

Vector space

A vector space (also called a linear space) is a collection of objects called vectors, which may be added together and multiplied ("scaled") by numbers, called scalars.

New!!: Current (mathematics) and Vector space · See more »

Weak topology

In mathematics, weak topology is an alternative term for certain initial topologies, often on topological vector spaces or spaces of linear operators, for instance on a Hilbert space.

New!!: Current (mathematics) and Weak topology · See more »

Redirects here:

De Rham current, Flat norm, Homological current, Integral current, Mass norm.

References

[1] https://en.wikipedia.org/wiki/Current_(mathematics)

OutgoingIncoming
Hey! We are on Facebook now! »