32 relations: Arithmetic function, Cambridge University Press, Coprime integers, Dirichlet series, Divisor function, Euler's formula, Euler's totient function, Euler–Mascheroni constant, Gaussian period, Generating function, Greatest common divisor, Hans Rademacher, Jordan's totient function, Kloosterman sum, Mathematics, Möbius function, Möbius inversion formula, Multiplicative function, Number theory, Orthogonality, Prime number, Prime number theorem, Richard Brauer, Riemann hypothesis, Riemann zeta function, Root of unity, Series (mathematics), Square number, Srinivasa Ramanujan, Triangular number, Vinogradov's theorem, Von Mangoldt function.
Arithmetic function
In number theory, an arithmetic, arithmetical, or number-theoretic function is for most authors any function f(n) whose domain is the positive integers and whose range is a subset of the complex numbers.
New!!: Ramanujan's sum and Arithmetic function · See more »
Cambridge University Press
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
New!!: Ramanujan's sum and Cambridge University Press · See more »
Coprime integers
In number theory, two integers and are said to be relatively prime, mutually prime, or coprime (also written co-prime) if the only positive integer (factor) that divides both of them is 1.
New!!: Ramanujan's sum and Coprime integers · See more »
Dirichlet series
In mathematics, a Dirichlet series is any series of the form where s is complex, and a_n is a complex sequence.
New!!: Ramanujan's sum and Dirichlet series · See more »
Divisor function
In mathematics, and specifically in number theory, a divisor function is an arithmetic function related to the divisors of an integer.
New!!: Ramanujan's sum and Divisor function · See more »
Euler's formula
Euler's formula, named after Leonhard Euler, is a mathematical formula in complex analysis that establishes the fundamental relationship between the trigonometric functions and the complex exponential function.
New!!: Ramanujan's sum and Euler's formula · See more »
Euler's totient function
In number theory, Euler's totient function counts the positive integers up to a given integer that are relatively prime to.
New!!: Ramanujan's sum and Euler's totient function · See more »
Euler–Mascheroni constant
The Euler–Mascheroni constant (also called Euler's constant) is a mathematical constant recurring in analysis and number theory, usually denoted by the lowercase Greek letter gamma.
New!!: Ramanujan's sum and Euler–Mascheroni constant · See more »
Gaussian period
In mathematics, in the area of number theory, a Gaussian period is a certain kind of sum of roots of unity.
New!!: Ramanujan's sum and Gaussian period · See more »
Generating function
In mathematics, a generating function is a way of encoding an infinite sequence of numbers (an) by treating them as the coefficients of a power series.
New!!: Ramanujan's sum and Generating function · See more »
Greatest common divisor
In mathematics, the greatest common divisor (gcd) of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers.
New!!: Ramanujan's sum and Greatest common divisor · See more »
Hans Rademacher
Hans Adolph Rademacher (3 April 1892, Wandsbeck, now Hamburg-Wandsbek – 7 February 1969, Haverford, Pennsylvania, USA) was a German-born American mathematician, known for work in mathematical analysis and number theory.
New!!: Ramanujan's sum and Hans Rademacher · See more »
Jordan's totient function
Let k be a positive integer.
New!!: Ramanujan's sum and Jordan's totient function · See more »
Kloosterman sum
In mathematics, a Kloosterman sum is a particular kind of exponential sum.
New!!: Ramanujan's sum and Kloosterman sum · See more »
Mathematics
Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.
New!!: Ramanujan's sum and Mathematics · See more »
Möbius function
The classical Möbius function is an important multiplicative function in number theory and combinatorics.
New!!: Ramanujan's sum and Möbius function · See more »
Möbius inversion formula
In mathematics, the classic Möbius inversion formula was introduced into number theory during the 19th century by August Ferdinand Möbius.
New!!: Ramanujan's sum and Möbius inversion formula · See more »
Multiplicative function
In number theory, a multiplicative function is an arithmetic function f(n) of a positive integer n with the property that f(1).
New!!: Ramanujan's sum and Multiplicative function · See more »
Number theory
Number theory, or in older usage arithmetic, is a branch of pure mathematics devoted primarily to the study of the integers.
New!!: Ramanujan's sum and Number theory · See more »
Orthogonality
In mathematics, orthogonality is the generalization of the notion of perpendicularity to the linear algebra of bilinear forms.
New!!: Ramanujan's sum and Orthogonality · See more »
Prime number
A prime number (or a prime) is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
New!!: Ramanujan's sum and Prime number · See more »
Prime number theorem
In number theory, the prime number theorem (PNT) describes the asymptotic distribution of the prime numbers among the positive integers.
New!!: Ramanujan's sum and Prime number theorem · See more »
Richard Brauer
Richard Dagobert Brauer (February 10, 1901 – April 17, 1977) was a leading German and American mathematician.
New!!: Ramanujan's sum and Richard Brauer · See more »
Riemann hypothesis
In mathematics, the Riemann hypothesis is a conjecture that the Riemann zeta function has its zeros only at the negative even integers and complex numbers with real part.
New!!: Ramanujan's sum and Riemann hypothesis · See more »
Riemann zeta function
The Riemann zeta function or Euler–Riemann zeta function,, is a function of a complex variable s that analytically continues the sum of the Dirichlet series which converges when the real part of is greater than 1.
New!!: Ramanujan's sum and Riemann zeta function · See more »
Root of unity
In mathematics, a root of unity, occasionally called a de Moivre number, is any complex number that gives 1 when raised to some positive integer power.
New!!: Ramanujan's sum and Root of unity · See more »
Series (mathematics)
In mathematics, a series is, roughly speaking, a description of the operation of adding infinitely many quantities, one after the other, to a given starting quantity.
New!!: Ramanujan's sum and Series (mathematics) · See more »
Square number
In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself.
New!!: Ramanujan's sum and Square number · See more »
Srinivasa Ramanujan
Srinivasa Ramanujan (22 December 188726 April 1920) was an Indian mathematician who lived during the British Rule in India. Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems considered to be unsolvable.
New!!: Ramanujan's sum and Srinivasa Ramanujan · See more »
Triangular number
A triangular number or triangle number counts objects arranged in an equilateral triangle, as in the diagram on the right.
New!!: Ramanujan's sum and Triangular number · See more »
Vinogradov's theorem
In number theory, Vinogradov's theorem is a result which implies that any sufficiently large odd integer can be written as a sum of three prime numbers.
New!!: Ramanujan's sum and Vinogradov's theorem · See more »
Von Mangoldt function
In mathematics, the von Mangoldt function is an arithmetic function named after German mathematician Hans von Mangoldt.
New!!: Ramanujan's sum and Von Mangoldt function · See more »
Redirects here:
Ramanujan expansion, Ramanujan sum.
References
[1] https://en.wikipedia.org/wiki/Ramanujan's_sum