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 Fourier-Feynman Transforms for Functionals in a Generalized Fresnel Class Commun. Korean Math. Soc. 2007 Vol. 22, No. 1, 75-90 Printed March 1, 2007 Il Yoo, Byoung Soo Kim Yonsei University, Seoul National University of Technology Abstract : Huffman, Park and Skoug introduced various results for the $L_p$ analytic Fourier-Feynman transform and the convolution for functionals on classical Wiener space which belong to some Banach algebra ${\mathcal S}$ introduced by Cameron and Storvick. Also Chang, Kim and Yoo extended the above results to an abstract Wiener space for functionals in the Fresnel class ${\mathcal F}(B)$ which corresponds to ${\mathcal S}$. Recently Kim, Song and Yoo investigated more generalized relationships between the Fourier-Feynman transform and the convolution product for functionals in a generalized Fresnel class ${\mathcal F}_{A_1,A_2}$ containing ${\mathcal F}(B)$. In this paper, we establish various interesting relationships and expressions involving the first variation and one or two of the concepts of the Fourier-Feynman transform and the convolution product for functionals in ${\mathcal F}_{A_1,A_2}$. Keywords : abstract Wiener space, generalized Fresnel class, analytic Feynman integral, Fourier-Feynman transform, convolution, first variation MSC numbers : 28C20 Downloads: Full-text PDF