Results 21 to 30 of about 38,605 (282)

The Dirichlet Problem for Stochastic Degenerate Parabolic-Hyperbolic Equations

Communications in Mathematical Analysis and Applications, 2022
Summary: We consider the Dirichlet problem for a quasilinear degenerate parabolic stochastic partial differential equation with multiplicative noise and nonhomogeneous Dirichlet boundary condition. We introduce the definition of kinetic solution for this problem and prove existence and uniqueness of solutions. For the uniqueness of kinetic solutions we
Frid, Hermano, Li, Yachun, Marroquin, Daniel, Nariyoshi, João F. C., Zeng, Zirong   +4 more
openaire   +2 more sources

Solution of the non-local problem for the hyperbolic equation in the closed form

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
The non-local boundary value problem for the degenerate hyperbolic equation in the area D, which is the union of two areas in the upper and lower half-planes, is examined.
R. N. Salikhov
doaj   +1 more source

Boundary value problems with displacement for one mixed hyperbolic equation of the second order

Қарағанды университетінің хабаршысы. Математика сериясы, 2023
The paper studies two nonlocal problems with a displacement for the conjugation of two equations of second-order hyperbolic type, with a wave equation in one part of the domain and a degenerate hyperbolic equation of the first kind in the other part. As
Zh.A. Balkizov
doaj   +1 more source

Goursat problem for loaded degenerate second order hyperbolic equation with Gellerstedt operator in principal part

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
In the paper we study a loaded degenerate hyperbolic equation of the second order with variable coefficients. The principal part of the equation is the Gellerstedt operator.
Anatoly H Attaev
doaj   +1 more source

Intersections of the Hermitian surface with irreducible quadrics in $PG(3,q^2)$, $q$ odd [PDF]

, 2013
In $PG(3,q^2)$, with $q$ odd, we determine the possible intersection sizes of a Hermitian surface $\mathcal{H}$ and an irreducible quadric $\mathcal{Q}$ having the same tangent plane $\pi$ at a common point $P\in{\mathcal Q}\cap{\mathcal H}$.Comment: 14 ...
Aguglia, Angela, Giuzzi, Luca
core   +2 more sources

Recovering Degenerate Kernels in Hyperbolic Integro-Differential Equations

Zeitschrift für Analysis und ihre Anwendungen, 2002
The problem of recovering a degenerate operator kernel in a hyperbolic integro-differential operator equation is studied. Existence, uniqueness and stability for the solution are proved. A conditional convergence of a sequence of solutions corresponding to degenerate kernels to a solution corresponding to a non-degenerate kernel is shown.
J. Janno, A. Lorenzi
openaire   +2 more sources

A boundary value problem for a third order hyperbolic equation with degeneration of order inside the domain

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
In this paper we study the boundary value problem for a degenerating third order equation of hyperbolic type in a mixed domain. The equation under consideration in the positive part of the domain coincides with the Hallaire equation, which is a ...
Ruzanna Kh Makaova
doaj   +1 more source

Global Weak Solution, Uniqueness and Exponential Decay for a Class of Degenerate Hyperbolic Equation

Communications in Advanced Mathematical Sciences, 2022
This paper deals with existence, uniqueness and energy decay of solutions to a degenerate hyperbolic equations given by \begin{align*} K(x,t)u'' - M\left(\int_\Omega |\nabla u|^2\,dx \right) \Delta u - \Delta u' = 0, \end{align*} with operator ...
Carlos Raposo, Ducival Pereira
doaj   +1 more source

Path Integral Approach for Superintegrable Potentials on Spaces of Non-constant Curvature: II. Darboux Spaces DIII and DIV [PDF]

, 2006
This is the second paper on the path integral approach of superintegrable systems on Darboux spaces, spaces of non-constant curvature. We analyze in the spaces $\DIII$ and $\DIV$ five respectively four superintegrable potentials, which were first given ...
A. Mostafazadeh, A. N. Sissakian, A. Ushveridze, B. Bagchi, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. Grosche, C. M. Bender, Ch. Grosche, D. Peak, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, E. G. Kalnins, F. Cannata, G. Koenigs, G. S. Pogosyan, H. Kleinert, I. S. Gradshteyn, I. V. Lutsenko, J. Fris, L. S. Schulman, M. A. Olmo Del, M. Böhm, M. N. Olevskii, M. Znojil, M. Znojil, M. Znojil, N. W. Evans, P. Winternitz, R.P. Feynman, S. Wojciechowski   +49 more
core   +3 more sources

Holographic thermal correlators for hyperbolic CFTs

Journal of High Energy Physics, 2023
We use holography to compute the exact form of retarded Green’s functions for a scalar operator with conformal dimension ∆ in a thermal CFT and in its related counterpart with chemical potential in R 1 × H 3.
Atanu Bhatta, Shankhadeep Chakrabortty, Taniya Mandal, Arpit Maurya   +3 more
doaj   +1 more source