scholarly journals Behavior of a First Variation under an Analytic Feynman Integral and a Convolution

2019 ◽  
Author(s):  
Sik Kim Young
Keyword(s):  
Feynman Integral ◽  
First Variation ◽  
Analytic Feynman Integral

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

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1666 ◽  
Author(s):  
Young Sik Kim
Keyword(s):  
Feynman Integral ◽  
Wiener Integral ◽  
Stieltjes Transform ◽  
First Variation ◽  
Borel Measures ◽  
Analytic Feynman Integral ◽  
Change Of Scale ◽  
Complex Borel Measure ◽  
The First Variation ◽  
Complex Borel Measures

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 transform of a complex Borel measure σt∈M(R) and M(R) is a set of complex Borel measures defined on R. We will find this condition. Moreover, we prove that the change of scale formula for Wiener integrals about the first variation of F(x) sucessfully holds on the Wiener space.

scholarly journals Parts formulas involving conditional Feynman integrals

2002 ◽  
Vol 65 (3) ◽  
pp. 353-369 ◽  
Author(s):  
Seung Jun Chang ◽  
David Skoug
Keyword(s):  
Basic Result ◽  
Feynman Integral ◽  
Wiener Space ◽  
Integration By Parts ◽  
Feynman Integrals ◽  
First Variation ◽  
Basic Formula ◽  
Analytic Feynman Integral ◽  
The First Variation

In this paper we first obtain a basic formula for the conditional analytic Feynman integral of the first variation of a functional on Wiener space. We then apply this basic result to obtain several integration by parts formulas for conditional analytic Feynman integrals and conditional Fourier-Feynman transforms.

scholarly journals Analytic Feynman Integral and a Change of Scale Formula for Wiener Integrals of an Unbounded Cylinder Function

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Kim Young Sik
Keyword(s):  
Feynman Integral ◽  
Wiener Space ◽  
Wiener Integral ◽  
Unbounded Function ◽  
Cylinder Function ◽  
Analytic Feynman Integral ◽  
Change Of Scale ◽  
Unbounded Cylinder

We investigate the behavior of the unbounded cylinder function F x = ∫ 0 T α 1 t d x t 2 k ⋅ ∫ 0 T α 2 t d x t 2 k ⋅ ⋯ ⋅ ∫ 0 T α n t d x t 2 k ,   k = 1,2 , … whose analytic Wiener integral and analytic Feynman integral exist, we prove some relationships among the analytic Wiener integral, the analytic Feynman integral, and the Wiener integral, and we prove a change of scale formula for the Wiener integral about the unbounded function on the Wiener space C 0 0 , T .

scholarly journals CONDITIONAL FEYNMAN INTEGRAL AND SCHRÖDINGER INTEGRAL EQUATION ON A FUNCTION SPACE

2009 ◽  
Vol 79 (1) ◽  
pp. 1-22 ◽  
Author(s):  
DONG HYUN CHO
Keyword(s):  
Integral Equation ◽  
Function Space ◽  
Feynman Integral ◽  
Borel Measures ◽  
Analytic Feynman Integral ◽  
Conditional Expectations ◽  
Image Position ◽  
Vector Valued ◽  
Complex Borel Measures ◽  
Stieltjes Transforms

AbstractLet Cr[0,t] be the function space of the vector-valued continuous paths x:[0,t]→ℝr and define Xt:Cr[0,t]→ℝ(n+1)r by Xt(x)=(x(0),x(t1),…,x(tn)), where 0<t1<⋯<tn=t. In this paper, using a simple formula for the conditional expectations of the functions on Cr[0,t] given Xt, we evaluate the conditional analytic Feynman integral Eanfq[Ft∣Xt] of Ft given by where θ(s,⋅) are the Fourier–Stieltjes transforms of the complex Borel measures on ℝr, and provide an inversion formula for Eanfq[Ft∣Xt]. Then we present an existence theorem for the solution of an integral equation including the integral equation which is formally equivalent to the Schrödinger differential equation. We show that the solution can be expressed by Eanfq[Ft∣Xt] and a probability distribution on ℝr when Xt(x)=(x(0),x(t)).

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

1998 ◽  
Vol 21 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Young Sik Kim
Keyword(s):  
Feynman Integral ◽  
Wiener Space ◽  
Abstract Wiener Space ◽  
Wiener Integral ◽  
Feynman Integrals ◽  
Analytic Feynman Integral ◽  
Change Of Scale ◽  
The Relationship

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 relationship between the Wiener integral and the analytic Feynman integral for such cylinder functions on the abstract Wiener space. We then establish a change of scale formula for Wiener integrals of such cylinder functions on the abstract Wiener space.

A TRANSLATION THEOREM FOR THE GENERALISED ANALYTIC FEYNMAN INTEGRAL ASSOCIATED WITH GAUSSIAN PATHS

2015 ◽  
Vol 93 (1) ◽  
pp. 152-161 ◽  
Author(s):  
SEUNG JUN CHANG ◽  
JAE GIL CHOI ◽  
AE YOUNG KO
Keyword(s):  
Banach Algebra ◽  
Feynman Integral ◽  
Analytic Feynman Integral

In this paper, we establish a translation theorem for the generalised analytic Feynman integral of functionals that belong to the Banach algebra ${\mathcal{F}}(C_{a,b}[0,T])$.

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