Results 11 to 20 of about 243,543 (330)

New Anisotropic Exact Solution in Multifield Cosmology

Universe, 2021
In the case of two-scalar field cosmology, and specifically for the Chiral model, we determine an exact solution for the field equations with an anisotropic background space.
Andronikos Paliathanasis
doaj   +1 more source

Coupled heat transfer between a viscous shock gasdynamic layer and a transversely streamlined anisotropic half-space [PDF]

INCAS Bulletin, 2020
The purpose of the article is to analytically solve the conjugate problem of heat transfer in a viscous shock layer on a blunt object and thermal conductivity in an anisotropic half-space.
Olga V. TUSHAVINA
doaj   +1 more source

INTEGRAL EQUATIONS FOR ANISOTROPIC SCATTERERS.

, 1983
Roberto D. Graglia
openalex   +3 more sources

Anisotropic equations in $L^1$

Differential and Integral Equations, 1996
Let \(\mu\) be a bounded Radon measure on \(\Omega\). The authors prove existence of a solution of the anisotropic quasilinear Dirichlet problem \[ - \sum^n_{i= 1} {\partial\over \partial x_i} \Biggl(\Biggl|{\partial u\over \partial x_i}\Biggr|^{p_i- 2} {\partial u\over \partial x_i}\Biggr)= \mu \quad \text{in }\Omega,\quad u= 0\quad \text{on }\partial
L. BOCCARDO, T. GALLOUET, MARCELLINI, PAOLO   +2 more
openaire   +4 more sources

Locally Anisotropic Kinetic Processes and Thermodynamics in Curved Spaces [PDF]

, 2000
The kinetic theory is formulated with respect to anholonomic frames of reference on curved spacetimes. By using the concept of nonlinear connection we develop an approach to modelling locally anisotropic kinetic processes and, in corresponding limits ...
Abramowitz, Barthel, Bogoslovsky, Boisseau, Cartan, Cartan, Chernikov, Chernikov, de Groot, de Groot, Dijkstra, Eckart, Fock, Ganga, Hawking, Hawking, Hehl, Israel, Israel, Kamke, Kern, Korn, Landau, Matsumoto, Miron, Miron, Miron, Overduin, Penrose, Ponomarev, Sergiu I. Vacaru, Smoot, Thomas, Tomita, Tseytlin, Vacaru, Vacaru, Vacaru, Vacaru, Vacaru, Vacaru, Vacaru, Vlasov, Weinberg, Zimdahl   +44 more
core   +2 more sources

Anisotropic Singular Neumann Equations with Unbalanced Growth [PDF]

Potential Analysis, 2021
AbstractWe consider a nonlinear parametric Neumann problem driven by the anisotropic (p, q)-Laplacian and a reaction which exhibits the combined effects of a singular term and of a parametric superlinear perturbation. We are looking for positive solutions.
Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Dušan D. Repovš   +2 more
openaire   +4 more sources

Anholonomic Soliton-Dilaton and Black Hole Solutions in General Relativity [PDF]

, 2000
A new method of construction of integral varieties of Einstein equations in three dimensional (3D) and 4D gravity is presented whereby, under corresponding redefinition of physical values with respect to anholonomic frames of reference with associated ...
Vacaru, Sergiu I.
core   +2 more sources

Semilinear anisotropic evolution partial differential equations

Journal of Mathematical Analysis and Applications, 2003
Consider the anisotropic Cauchy problem \(\partial_t u+P(D)u-G(\partial^\alpha u)=0\) for \(t>0\), \(u(x,0)=u_0(x)\), where \(P(D)=\sum_{| \alpha:\rho| \leq m} c_\alpha D_x^\alpha\) is a quasi-elliptic operator of (anisotropic) order \(m\) and \(G\) is a homogeneous polynomial with constant coefficients.
P. Marcolongo, OLIARO, Alessandro
openaire   +2 more sources

Anisotropic singular logistic equations [PDF]

Opuscula Mathematica
We consider a parametric Dirichlet problem driven by the anisotropic \((p,q)\)-Laplacian and a reaction with a singular term and a superdiffusive logistic perturbation.
João Pablo Pinheiro Da Silva, Giuseppe Failla, Leszek Gasiński, Nikolaos S. Papageorgiou   +3 more
doaj   +1 more source

Numerical Study on an RBF-FD Tangent Plane Based Method for Convection–Diffusion Equations on Anisotropic Evolving Surfaces

Entropy, 2022
In this paper, we present a fully Lagrangian method based on the radial basis function (RBF) finite difference (FD) method for solving convection–diffusion partial differential equations (PDEs) on evolving surfaces.
Nazakat Adil, Xufeng Xiao, Xinlong Feng
doaj   +1 more source