Results 11 to 20 of about 3,501 (264)

Feynman Integral and a Change of Scale Formula about the First Variation and a Fourier–Stieltjes Transform

open access: yesMathematics, 2020
We prove that the Wiener integral, the analytic Wiener integral and the analytic Feynman integral of the first variation of F(x)=exp{∫0Tθ(t,x(t))dt} successfully exist under the certain condition, where θ(t,u)=∫Rexp{iuv}dσt(v) is a Fourier–Stieltjes ...
Young Sik Kim
doaj   +1 more source

A change of scale formula for Wiener integrals of cylinder functions on abstract Wiener space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
The purpose of this paper is to establish the existence of analytic Wiener and Feynman integrals for a class of certain cylinder functions which is of the form: F(x)=f((h1,x)∼,⋯,(hn,x)∼),    x∈B, on the abstract Wiener space, and to establish the ...
Young Sik Kim
doaj   +1 more source

A Partial Derivative Approach to the Change of Scale Formula for the Function Space Integral

open access: yesEntropy, 2020
We investigate the partial derivative approach to the change of scale formula for the functon space integral and we investigate the vector calculus approach to the directional derivative on the function space and prove relationships among the Wiener ...
Young Sik Kim
doaj   +1 more source

A change of scale formula for Wiener integrals on abstract Wiener spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In this paper we obtain a change of scale formula for Wiener integrals on abstract Wiener spaces. This formula is shown to hold for many classes of functions of interest in Feynman integration theory and quantum mechanics.
Il Yoo, David Skoug
doaj   +1 more source

Wiener Functionals as Itô Integrals [PDF]

open access: yesThe Annals of Probability, 1977
Let W(t, ω) be a standard Wiener process, W t ≡ W(t) ≡ W(t, ∙). A function φ(t, ω) is called nonanticipating iff for all t ^ 0, φ(t, ∙) is measurable with respect to {W s : 0 % s % t}. The Ito stochastic integral $$f(\omega )\, \equiv \,\int {_0^1 \varphi (t,\,\omega )d_t \,W(t,\,\omega )}$$ is defined for any jointly measurable, nonanticipating ...
openaire   +3 more sources

Fundamental theorem of Wiener calculus

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In this paper we define and develop a theory of differentiation in Wiener space C[0,T]. We then proceed to establish a fundamental theorem of the integral calculus for C[0,T].
Chull Park   +2 more
doaj   +1 more source

An Operator-Valued Yeh-Wiener Integral and a Kac-Feynman Wiener Integral Equation [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Let C [ 0 , T ] C[0,T] denote Wiener space, i.e., the space of all continuous functions η ( t ) \eta (t) on [ 0 , T ] [0,T] such that η ( 0 ) = 0
Park, Chull, Skoug, David
openaire   +2 more sources

Integral Transforms on a Function Space with Change of Scales Using Multivariate Normal Distributions

open access: yesJournal of Function Spaces, 2016
Using simple formulas for generalized conditional Wiener integrals on a function space which is an analogue of Wiener space, we evaluate two generalized analytic conditional Wiener integrals of a generalized cylinder function which is useful in Feynman ...
Dong Hyun Cho
doaj   +1 more source

Generalized Conditional Yeh-Wiener Integrals and a Wiener Interal Equation

open access: yesJournal of Integral Equations and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Park, Chull, Skoug, David
openaire   +3 more sources

On Determinant Expansions for Hankel Operators

open access: yesConcrete Operators, 2020
Let w be a semiclassical weight that is generic in Magnus’s sense, and (pn)n=0∞({p_n})_{n = 0}^\infty the corresponding sequence of orthogonal polynomials. We express the Christoffel–Darboux kernel as a sum of products of Hankel integral operators.
Blower Gordon, Chen Yang
doaj   +1 more source

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