Results 31 to 40 of about 210,731 (289)

Diffraction by a Right-Angled No-Contrast Penetrable Wedge Revisited: A Double Wiener-Hopf Approach [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2021
In this paper, we revisit Radlow's innovative approach to diffraction by a penetra ble wedge by means of a double Wiener-Hopf technique. We provide a constructive way of obtaining his ansatz and give yet another reason for why his ansatz cannot be the ...
Valentin Kunz, R. Assier
semanticscholar   +1 more source

Wiener Path Integral based response determination of nonlinear systems subject to non-white, non-Gaussian, and non-stationary stochastic excitation

open access: yesJournal of Sound and Vibration, 2018
The recently developed Wiener Path Integral (WPI) technique for determining the joint response probability density function of nonlinear systems subject to Gaussian white noise excitation is generalized herein to account for non-white, non-Gaussian, and ...
Apostolos F. Psaros   +3 more
semanticscholar   +1 more source

Dynamic Heat Transfer Calculation for Ground-Coupled Floor in Emergency Temporary Housing

open access: yesApplied Sciences, 2022
Generally, ground-coupled floor heat transfer is supposed as annual periodic, which is reasonable for conventional buildings. However, for emergency housing with a short life cycle, the influence of initial soil temperature needs to be considered.
Pei Ding   +4 more
doaj   +1 more source

On the solution of the convolution equation with a sum-difference kernel

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
The paper deals with the integral equations of the second kind with a sumdifference kernel. These equations describe a series of physical processes in a medium with a reflective boundary.
Ani G Barseghyan
doaj   +1 more source

Simultaneous Measurements of Noncommuting Observables: Positive Transformations and Instrumental Lie Groups

open access: yesEntropy, 2023
We formulate a general program for describing and analyzing continuous, differential weak, simultaneous measurements of noncommuting observables, which focuses on describing the measuring instrument autonomously, without states.
Christopher S. Jackson, Carlton M. Caves
doaj   +1 more source

Path integral method for stochastic equations of financial engineering

open access: yesMathematical Modeling and Computing, 2022
The integral path method was applied to determine certain stochastic variables which occur in problems of financial engineering. A stochastic variable was defined by a stochastic equation where drift and volatility are functions of a stochastic variable.
V. S. Yanishevskyi, S. Baranovska
semanticscholar   +1 more source

Wiener integrals with respect to the Hermite random field and applications to the wave equation [PDF]

open access: yesCollectanea Mathematica, 2014
The Hermite random field has been introduced as a limit of some weighted Hermite variations of the fractional Brownian sheet. In this work we define it as a multiple integral with respect to the standard Brownian sheet and introduce Wiener integrals with
Jorge Clarke De la Cerda, C. Tudor
semanticscholar   +1 more source

One-dimensional Wiener process with the properties of partial reflection and delay

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper, we construct the two-parameter semigroup of operators associated with a certain one-dimensional inhomogeneous diffusion process and study its properties.
B.I. Kopytko, R.V. Shevchuk
doaj   +1 more source

On a Wiener-Hopf Integral Equation

open access: yesJournal of Integral Equations and Applications, 1995
The author considers the following problem: determine the positive sequence \(\{E_n\}\) satisfying the infinite discrete system \[ \sin \left( {\pi \over 4} + \theta \right) \sum_{n = 0}^\infty {E_n \over \beta_n - \theta} + \sin \left( {\pi \over 4} - \theta \right) \sum^\infty_{n = 0} {E_n \over \beta_n + \theta} = \sqrt 2 {\sin \theta \over \theta} \
openaire   +2 more sources

The problem with the missing Goursat condition at the boundary of the domain for a degenerate hyperbolic equation with a singular coefficient

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The work is devoted to the formulation and study of the solvability for a problem with missing conditions on the characteristic boundary of the domain and an analogue of the Frankl condition on the segment of the degeneracy for a hyperbolic equation ...
М. Мирсабуров   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy