Results 11 to 20 of about 599 (137)

Degenerate hyperbolic equations with lower degree degeneracy [PDF]

open access: yesProceedings of the American Mathematical Society, 2014
Summary: We prove that the Cauchy problem of degenerate hyperbolic equations is well-posed if leading coefficients are degenerate at a low degree.
Han, Qing, Liu, Yannan
openaire   +2 more sources

Identification for Degenerate Differential Problems of Hyperbolic Type

open access: yesBruno Pini Mathematical Analysis Seminar, 2017
A degenerate identification problem in Hilbert space is considered. An application to second order evolution equations of hyperbolic type is also provided. The abstract results are applied to concrete differential problems.
Angelo Favini
doaj   +1 more source

Stochastic non-isotropic degenerate parabolic–hyperbolic equations

open access: yesStochastic Processes and their Applications, 2017
35 ...
Benjamin Gess, Panagiotis E. Souganidis
openaire   +2 more sources

The Dirichlet Problem for Stochastic Degenerate Parabolic-Hyperbolic Equations

open access: yesCommunications 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   +4 more
openaire   +2 more sources

Identification for General Degenerate Problems of Hyperbolic Type

open access: yesBruno Pini Mathematical Analysis Seminar, 2016
A degenerate identification problem in Hilbert space is described, improving a previous paper [2]. An application to second order evolution equations of hyperbolic type is given.
Angelo Favini, Gabriela Marinoschi
doaj   +1 more source

Delta-problems for the generalized Euler-Darboux equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
Degenerate hyperbolic equations are dealing with many important issues for applied nature. While a variety of degenerate equations and boundary conditions, successfully matched to these differential equation, most in the characteristic coordinates ...
Irina N Rodionova   +2 more
doaj   +1 more source

Mixed Cauchy problem with lateral boundary condition for noncharacteristic degenerate hyperbolic equations

open access: yesBoundary Value Problems, 2022
In this paper, in a cylindrical domain D = Ω × ( 0 , T ) $D=\Omega \times (0,T)$ with Ω ⊂ R n $\Omega \subset {R}^{n}$ , we consider a mixed Cauchy problem with a potential lateral boundary condition for the following noncharacteristic degenerated ...
Nurbek Kakharman, Tynysbek Kal’menov
doaj   +1 more source

Analysis and explicit solvability of degenerate tensorial problems

open access: yesBoundary Value Problems, 2018
We study a two-dimensional boundary value problem described by a tensorial equation in a bounded domain. Once its more general definition is given, we conclude that its analysis is linked to the resolution of an overdetermined hyperbolic problem and ...
Tongxing Li, Giuseppe Viglialoro
doaj   +1 more source

On a degenerate hyperbolic problem for the 3-D steady full Euler equations with axial-symmetry

open access: yesAdvances in Nonlinear Analysis, 2020
The transonic channel flow problem is one of the most important problems in mathematical fluid dynamics. The structure of solutions near the sonic curve is a key part of the whole transonic flow problem. This paper constructs a local classical hyperbolic
Hu Yanbo, Li Fengyan
doaj   +1 more source

Causal Gödel-type metrics in non-local gravity theories

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
It is well known that non-local theories of gravity have been a flourish arena of studies for many reasons, for instance, the UV incompleteness of General Relativity (GR). In this paper we check the consistency of ST-homogeneous Gödel-type metrics within
J. R. Nascimento   +2 more
doaj   +1 more source

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