Results 41 to 50 of about 32,582 (169)

MULTIPLE LpANALYTIC GENERALIZED FOURIER-FEYNMAN TRANSFORM ON THE BANACH ALGEBRA [PDF]

open access: yesCommunications of the Korean Mathematical Society, 2004
Summary: We use a generalized Brownian motion process to define a generalized Feynman integral and a generalized Fourier-Feynman transform. We also define the concepts of the multiple \(L_p\) analytic generalized Fourier-Feynman transform and the generalized convolution product of functionals on function space \(C_{a,b}[0,T]\).
Chang, Seung Jun, Choi, Jae Gil
openaire   +2 more sources

Response functions in multicomponent Luttinger liquids

open access: yes, 2012
We derive an analytic expression for the zero temperature Fourier transform of the density-density correlation function of a multicomponent Luttinger liquid with different velocities.
Citro, R., Orignac, E.
core   +3 more sources

Position space equations for generic Feynman graphs

open access: yesPhysics Letters B
We propose an extension of the position space approach to Feynman integrals from the banana family to generic Feynman diagrams. Our approach is based on omitting integration in position space and then writing differential equations for the products of ...
V. Mishnyakov, A. Morozov, M. Reva
doaj   +1 more source

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

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We show that for certain bounded cylinder functions of the form F(x)=μˆ((h1,x)∼,...,(hn,x)∼), x∈B where μˆ:ℝn→ℂ is the Fourier-transform of the complex-valued Borel measure μ on ℬ(ℝn), the Borel σ-algebra of ℝn with ‖μ‖
Young Sik Kim
doaj   +1 more source

Dispersive calculation of the massless multi-loop sunrise diagram [PDF]

open access: yes, 2006
The massless sunrise diagram with an arbitrary number of loops is calculated in a simple but formal manner. The result is then verified by rigorous mathematical treatment. Pitfalls in the calculation with distributions are highlighted and explained.
A. Aste   +25 more
core   +2 more sources

AdS maps and diagrams of bi-local holography

open access: yesJournal of High Energy Physics, 2019
We present in detail the basic ingredients contained in bi-local holography, representing a constructive scheme for reconstructing AdS bulk theories in Vectorial/AdS duality.
Robert de Mello Koch   +3 more
doaj   +1 more source

Natural renormalization [PDF]

open access: yes, 1996
A careful analysis of differential renormalization shows that a distinguished choice of renormalization constants allows for a mathematically more fundamental interpretation of the scheme.
Schnetz, Oliver
core   +4 more sources

Shifting for the Fourier–Feynman Transform on Wiener Space

open access: yesBanach Journal of Mathematical Analysis, 2017
In this paper we survey results on the shifting for the Fourier–Feynman transform. In particular we introduce some results on the shifting, scaling and modulation proprerties for Fourier–Feynman transform of functionals in a Banach algebra \(\mathcal{S}\).
Seung Jun Chang, Jae Gil Choi
openaire   +4 more sources

Generalized Fourier–Feynman transforms and generalized convolution products on Wiener space

open access: yesIndagationes Mathematicae, 2017
The authors summarize the contents of this paper in the abstract of the paper as follows: In this paper we define a more general convolution product of functionals on Wiener space and develop the fundamental relationships between the generalized Fourier-Feynman transform and the convolution product. Editor's remark.
Seung Jun Chang   +2 more
openaire   +1 more source

Morphotropic Phase Boundary in Graft Poly(Vinylidene Fluoride‐co‐Tetrafluoroethylene) With High Curie Temperature

open access: yesAdvanced Science, EarlyView.
The first TrFE‐free ferroelectric polymers exhibiting concurrently a morphotropic phase boundary and high Curie temperature are reported through a grafting strategy, which is completely different from previous methods to design MPB by composition and irradiation. This finding offers a cost‐effective solution to decode the long‐standing inverse relation
Zekai Fei   +6 more
wiley   +1 more source

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