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Zeta function regularization information


In mathematics and theoretical physics, zeta function regularization is a type of regularization or summability method that assigns finite values to divergent sums or products, and in particular can be used to define determinants and traces of some self-adjoint operators. The technique is now commonly applied to problems in physics, but has its origins in attempts to give precise meanings to ill-conditioned sums appearing in number theory.

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Zeta function regularization

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In mathematics and theoretical physics, zeta function regularization is a type of regularization or summability method that assigns finite values to divergent...

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Dimensional regularization

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dimensional regularization can be used to study the physics of crystals that macroscopically appear to be fractals. It has been argued that Zeta function regularization...

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Riemann zeta function

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The Riemann zeta function or Euler–Riemann zeta function, denoted by the Greek letter ζ (zeta), is a mathematical function of a complex variable defined...

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Renormalization

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inspiration for later attempts at regularization and renormalization in quantum field theory. (See also regularization (physics) for an alternative way...

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Divergent series

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then its value at s = −1 is called the zeta regularized sum of the series a1 + a2 + ... Zeta function regularization is nonlinear. In applications, the numbers...

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Ramanujan summation

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x^{m-2r}=-{\frac {a^{m-2r+1}}{m-2r+1}}.} Note that this involves (see zeta function regularization) I ( n , Λ ) = ∫ 0 Λ d x x n {\displaystyle I(n,\Lambda )=\int...

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Particular values of the Riemann zeta function

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Riemann zeta function is a function in complex analysis, which is also important in number theory. It is often denoted ζ ( s ) {\displaystyle \zeta (s)}...

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Functional determinant

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perform some kind of regularization. The most popular of which for computing functional determinants is the zeta function regularization. For instance, this...

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Eta invariant

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practice both numbers are often infinite so are defined using zeta function regularization. It was introduced by Atiyah, Patodi, and Singer (1973, 1975)...

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Lattice field theory

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regularization Lattice regularization Zeta function regularization Causal perturbation theory Hadamard regularization Point-splitting regularization v...

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Digamma function

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^{2}}{6\gamma }}\end{aligned}}} also hold true. The digamma function appears in the regularization of divergent integrals ∫ 0 ∞ d x x + a , {\displaystyle...

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Error function

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In mathematics, the error function (also called the Gauss error function), often denoted by erf, is a function defined as: erf ⁡ z = 2 π ∫ 0 z e − t 2...

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Hadamard regularization

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mathematics, Hadamard regularization (also called Hadamard finite part or Hadamard's partie finie) is a method of regularizing divergent integrals by...

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List of numbers

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Roger (1979), "Irrationalité de ζ ( 2 ) {\displaystyle \zeta (2)} et ζ ( 3 ) {\displaystyle \zeta (3)} ", Astérisque, 61: 11–13. Kingdom of Infinite Number:...

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Ultraviolet divergence

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Renormalization group UV fixed point Causal perturbation theory Zeta function regularization J.D. Bjorken, S. Drell (1965). Relativistic Quantum Fields, Preface...

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Renormalization group

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reference. Quantum triviality Scale invariance Schröder's equation Regularization (physics) Density matrix renormalization group Functional renormalization...

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Generalized function

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first case, the multiplication is determined with some regularization of generalized function. In the second case, the algebra is constructed as multiplication...

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Dirichlet series

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_{N}^{\infty }{\frac {S_{f}(y)}{y^{s+1}}}dy.} General Dirichlet series Zeta function regularization Euler product Dirichlet convolution The formulas for both series...

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Support vector machine

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equivalent to empirical risk minimization with Tikhonov regularization, where in this case the loss function is the hinge loss ℓ ( y , z ) = max ( 0 , 1 − y z...

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Minimal subtraction scheme

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diagram calculations into the counterterms. When using dimensional regularization, i.e. d 4 p → μ 4 − d d d p {\displaystyle d^{4}p\to \mu ^{4-d}d^{d}p}...

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On shell renormalization scheme

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where the left-hand side of the equation is the two-point correlation function of the Dirac field. In a new theory, the Dirac field can interact with...

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String field theory

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field theory String cosmology Supergravity The Elegant Universe Zeta function regularization Sen, Ashoke (1999-12-29). "Universality of the tachyon potential"...

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