Results 31 to 40 of about 1,239,920 (284)

Vacuum Polarization of a Charged Massless Scalar Field on Cosmic String Spacetime in the Presence of a Magnetic Field [PDF]

open access: yes, 2003
In this paper we consider a charged massless scalar quantum field operator in the spacetime of an idealized cosmic string, i.e., an infinitely long, straight and static cosmic string, which presents a magnetic field confined in a cylindrical tube of ...
Allen B   +16 more
core   +2 more sources

The Gerber-Shiu Expected Penalty Function for the Risk Model with Dependence and a Constant Dividend Barrier

open access: yesAbstract and Applied Analysis, 2014
We consider a compound Poisson risk model with dependence and a constant dividend barrier. A dependence structure between the claim amount and the interclaim time is introduced through a Farlie-Gumbel-Morgenstern copula.
Donghai Liu, Zaiming Liu, Dan Peng
doaj   +1 more source

Theory of nth-order linear general quantum difference equations

open access: yesAdvances in Difference Equations, 2018
In this paper, we derive the solutions of homogeneous and non-homogeneous nth-order linear general quantum difference equations based on the general quantum difference operator Dβ $D_{\beta }$ which is defined by Dβf(t)=(f(β(t))−f(t))/(β(t)−t) $D_{\beta }
Nashat Faried   +2 more
doaj   +1 more source

One-loop amplitudes for N $$ \mathcal{N} $$ = 2 homogeneous supergravities

open access: yesJournal of High Energy Physics, 2019
We compute one-loop matter amplitudes in homogeneous Maxwell-Einstein supergravities with N $$ \mathcal{N} $$ = 2 supersymmetry using the double-copy construction.
Maor Ben-Shahar, Marco Chiodaroli
doaj   +1 more source

Associated and quasi associated homogeneous distributions (generalized functions)

open access: yesJournal of Mathematical Analysis and Applications, 2008
In this paper analysis of the concept of {\it associated homogeneous distributions} (generalized functions) is given, and some problems related to these distributions are solved. It is proved that (in the one-dimensional case) there exist {\it only} {\it associated homogeneous distributions} of order $k=1$. Next, we introduce a definition of {\it quasi
openaire   +3 more sources

Off-shell scalar products for the XXZ spin chain with open boundaries

open access: yesNuclear Physics B, 2015
In this work we study scalar products of Bethe vectors associated with the XXZ spin chain with open boundary conditions. The scalar products are obtained as solutions of a system of functional equations.
W. Galleas
doaj   +1 more source

Stationary viscoelastic wave fields generated by scalar wave functions [PDF]

open access: yes, 1915
The usual Helmholtz decomposition gives a decomposition of any vector valued function into a sum of gradient of a scalar function and rotation of a vector valued function under some mild condition. In this paper we show that the vector valued function of
Eom, Junyong, Nakamura, Gen
core   +9 more sources

RIESZ MEANS ASSOCIATED WITH HOMOGENEOUS FUNCTIONS ON HARDY SPACES

open access: yesTaiwanese Journal of Mathematics, 2010
In this note we prove sharp weak type estimates for lacunary maximal operators of Riesz means associated with homogeneous functions on $H^p$ spaces, $0 \lt p \leq 1$.
openaire   +2 more sources

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