Solutions of evolution equations associated to infinite-dimensional Laplacian

2016 ◽  
Vol 14 (04) ◽  
pp. 1640018 ◽  
Author(s):  
Habib Ouerdiane
Keyword(s):  
Evolution Equation ◽  
Evolution Equations ◽  
Dimensional Space ◽  
Generalized Function ◽  
Initial Condition ◽  
Distribution Space ◽  
One Dimensional ◽  
Infinite Dimensional ◽  
Main Technique ◽  
The One

We study an evolution equation associated with the integer power of the Gross Laplacian [Formula: see text] and a potential function V on an infinite-dimensional space. The initial condition is a generalized function. The main technique we use is the representation of the Gross Laplacian as a convolution operator. This representation enables us to apply the convolution calculus on a suitable distribution space to obtain the explicit solution of the perturbed evolution equation. Our results generalize those previously obtained by Hochberg [K. J. Hochberg, Ann. Probab. 6 (1978) 433.] in the one-dimensional case with [Formula: see text], as well as by Barhoumi–Kuo–Ouerdiane for the case [Formula: see text] (See Ref. [A. Barhoumi, H. H. Kuo and H. Ouerdiane, Soochow J. Math. 32 (2006) 113.]).

scholarly journals Сlassical solution of the mixed problem for the one-dimensional wave equation with the nonsmooth second initial condition

2020 ◽  
Vol 64 (6) ◽  
pp. 657-662
Author(s):  
V. I. Korzyuk ◽  
J. V. Rudzko
Keyword(s):  
Boundary Condition ◽  
Wave Equation ◽  
Mixed Problem ◽  
Method Of Characteristics ◽  
Smooth Boundary ◽  
Analytical Form ◽  
Initial Condition ◽  
One Dimensional ◽  
The One ◽  
Dimensional Wave

In this article, we study the classical solution of the mixed problem in a quarter of a plane and a half-plane for a one-dimensional wave equation. On the bottom of the boundary, Cauchy conditions are specified, and the second of them has a discontinuity of the first kind at one point. Smooth boundary condition is set at the side boundary. The solution is built using the method of characteristics in an explicit analytical form. Uniqueness is proved and conditions are established under which a piecewise-smooth solution exists. The problem with linking conditions is considered.

scholarly journals Exact statistical properties of the Burgers equation

2000 ◽  
Vol 417 ◽  
pp. 323-349 ◽  
Author(s):  
L. FRACHEBOURG ◽  
Ph. A. MARTIN
Keyword(s):  
White Noise ◽  
Large Distance ◽  
Burgers Equation ◽  
Higher Order ◽  
Statistical Properties ◽  
Inviscid Limit ◽  
Initial Condition ◽  
Spatial Correlations ◽  
One Dimensional ◽  
The One

The one-dimensional Burgers equation in the inviscid limit with white noise initial condition is revisited. The one- and two-point distributions of the Burgers field as well as the related distributions of shocks are obtained in closed analytical forms. In particular, the large distance behaviour of spatial correlations of the field is determined. Since higher-order distributions factorize in terms of the one- and two- point functions, our analysis provides an explicit and complete statistical description of this problem.

P-th moment growth bounds of infinite-dimensional stochastic evolution equations

1998 ◽  
Vol 128 (1) ◽  
pp. 107-121 ◽  
Author(s):  
Kai Liu
Keyword(s):  
Evolution Equations ◽  
Dimensional Space ◽  
Sufficient Conditions ◽  
Rate Function ◽  
Infinite Dimensional Space ◽  
Stochastic Evolution ◽  
Stochastic Evolution Equations ◽  
Infinite Dimensional ◽  
Sample Paths ◽  
Logarithmic Growth

The aim of this paper is to investigate the p-th moment growth bounds wilh a general rate function λ(t) of the strong solution for a class of stochastic differential equations in infinite dimensional space under various sufficient hypotheses. The results derived here extend the usual situations to some extent, containing for example the polynomial or iterated logarithmic growth cases studied by many authors. In particular, more generalised sufficient conditions, ensuring the p-th moment upper-bound of sample paths given by solutions of a class of nonlinear stochastic evolution equations, are captured. Applications to parabolic itô equations are also considered.

scholarly journals On the One-Dimensional Space Allocation Problem

1981 ◽  
Vol 29 (2) ◽  
pp. 371-391 ◽  
Author(s):  
Jean-Claude Picard ◽  
Maurice Queyranne
Keyword(s):  
Dimensional Space ◽  
Allocation Problem ◽  
One Dimensional ◽  
Space Allocation ◽  
The One

scholarly journals Revisiting the 1D and 2D Laplace Transforms

2020 ◽  
Author(s):  
Manuel Duarte Ortigueira ◽  
José Tenreiro Machado
Keyword(s):  
Transfer Function ◽  
Laplace Transform ◽  
Linear Systems ◽  
Laplace Transforms ◽  
Dimensional Case ◽  
Initial Condition ◽  
Two Dimensional ◽  
One Dimensional ◽  
The One

This paper reviews the unilateral and bilateral, one- and two-dimensional Laplace transforms. The unilateral and bilateral Laplace transforms are compared in the one-dimensional case, leading to the formulation of the initial-condition theorem. This problem is solved with all generality in the one- and two-dimensional cases with the bilateral Laplace transform. General two-dimensional linear systems are introduced and the corresponding transfer function defined.

scholarly journals An improved characterisation of regular generalised functions of white noise and an application to singular SPDEs

2021 ◽  
Author(s):  
Martin Grothaus ◽  
Jan Müller ◽  
Andreas Nonnenmacher
Keyword(s):  
Holomorphic Function ◽  
Heat Equation ◽  
Multiplicative Noise ◽  
Complex Numbers ◽  
One Dimensional ◽  
Infinite Dimensional ◽  
Stochastic Transport ◽  
The One ◽  
Funct Anal ◽  
Stochastic Transport Equation

AbstractA characterisation of the spaces $${\mathcal {G}}_K$$ G K and $${\mathcal {G}}_K'$$ G K ′ introduced in Grothaus et al. (Methods Funct Anal Topol 3(2):46–64, 1997) and Potthoff and Timpel (Potential Anal 4(6):637–654, 1995) is given. A first characterisation of these spaces provided in Grothaus et al. (Methods Funct Anal Topol 3(2):46–64, 1997) uses the concepts of holomorphy on infinite dimensional spaces. We, instead, give a characterisation in terms of U-functionals, i.e., classic holomorphic function on the one dimensional field of complex numbers. We apply our new characterisation to derive new results concerning a stochastic transport equation and the stochastic heat equation with multiplicative noise.

scholarly journals Escaping Orbits Are also Rare in the Almost Periodic Fermi–Ulam Ping-Pong

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Henrik Schließauf
Keyword(s):  
Lebesgue Measure ◽  
Measure Zero ◽  
Initial Condition ◽  
Almost Periodic ◽  
Periodic Forcing ◽  
One Dimensional ◽  
Forcing Function ◽  
Ping Pong ◽  
The One ◽  
Escaping Orbits

AbstractWe study the one-dimensional Fermi–Ulam ping-pong problem with a Bohr almost periodic forcing function and show that the set of initial condition leading to escaping orbits typically has Lebesgue measure zero.

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