Results 21 to 30 of about 2,128,627 (261)

Front propagation in nonlinear parabolic equations [PDF]

open access: yesJournal of the London Mathematical Society, 2014
We study existence and stability of travelling waves for nonlinear convection diffusion equations in the 1-D Euclidean space. The diffusion coefficient depends on the gradient in analogy with the p-Laplacian and may be degenerate. Unconditional stability is established with respect to initial data perturbations in the Lebesgue space of integrable ...
Eduard Feireisl   +3 more
openaire   +4 more sources

Fujita-type results for the degenerate parabolic equations on the Heisenberg groups [PDF]

open access: yes, 2023
In this paper, we consider the Cauchy problem for the degenerate parabolic equations on the Heisenberg groups with power law non-linearities. We obtain Fujita-type critical exponents, which depend on the homogeneous dimension of the Heisenberg groups ...
Torebek, Berikbol   +6 more
core   +1 more source

Higher order parallel splitting methods for parabolic partial differential equations [PDF]

open access: yes, 1995
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The thesis develops two families of numerical methods, based upon new rational approximations to the matrix exponential function, for solving second-order ...
Taj, Malik Shahadat Ali
core   +6 more sources

Parabolic pulse generation through passive reshaping of Gaussian pulses in a normally dispersive fiber [PDF]

open access: yes, 2007
We numerically and experimentally demonstrate that a Gaussian pulse can be reshaped into a pulse with a stable parabolic intensity profile during propagation in normally dispersive nonlinear ...
Petropoulos, Periklis   +3 more
core   +2 more sources

Controllability for parabolic equations with nonlinear memory

open access: yesComputers & Mathematics with Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Qiang Tao, Hang Gao 0001
openaire   +2 more sources

The Classical Continuous Optimal Control for Quaternary Nonlinear Parabolic Boundary Value Problems with State Vector Constraints

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2022
This paper aims to study the quaternary classical continuous optimal control problem consisting of the quaternary nonlinear parabolic boundary value problem, the cost function, and the equality and inequality constraints on the state and the control ...
jamil Amir Al-Hawasy   +1 more
doaj   +1 more source

On a comparison theorem for parabolic equations with nonlinear boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, a new type of comparison theorem for some second-order nonlinear parabolic systems with nonlinear boundary conditions is given, which can cover classical linear boundary conditions, such as the homogeneous Dirichlet or Neumann boundary ...
Kita Kosuke, Ôtani Mitsuharu
doaj   +1 more source

Introduction to fully nonlinear parabolic equations

open access: yes, 2012
68 pagesThese notes contain a short exposition of selected results about parabolic equations: Schauder estimates for linear parabolic equations with Hölder coefficients, some existence, uniqueness and regularity results for viscosity solutions of fully ...
Silvestre, Luis, Imbert, Cyril
core   +3 more sources

Null-controllability for 1-D degenerate quasilinear parabolic equations

open access: yesElectronic Journal of Differential Equations
In this article, we prove local null-controllability for  one-dimensional degenerate quasilinear parabolic equations. We apply  a well-known local inversion argument used by Fursikov and Imanuvilov.  The strategy is to use Carleman estimates, previously
Pitagoras P. de Carvalho   +3 more
doaj   +3 more sources

Differential difference inequalities related to parabolic functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2010
Initial boundary value problems for nonlinear parabolic functional differential equations are transformed by discretization in space variables into systems of ordinary functional differential equations.
Milena Netka
doaj   +1 more source

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