A mixed boundary value problem for heat potentials (Preliminary communication)
A mixed semilinear parabolic problem from combustion theory.
A mixed-culture model of a probiotic biofilm control system.
A model of a radially symmetric cloud of self-attracting particles
We consider a parabolic equation which describes the gravitational interaction of particles. Existence of solutions and their convergence to stationary states are studied.
A model of evolution of temperature and density of ions in an electrolyte
We study existence and nonexistence of solutions (both stationary and evolution) for a parabolic-elliptic system describing the electrodiffusion of ions. In this model the evolution of temperature is also taken into account. For stationary states the existence of an external potential is also assumed.
A model of frontal polymerization including the gel effect.
A model of frontal polymerization using complex initiation.
A modern proof of the Maximum Principle
A modified quasi-boundary value method for a class of abstract parabolic ill-posed problems.
A multigrid method for distributed parameter estimation problems.
A multiplicity result for a class of quasilinear elliptic and parabolic problems.
A Multiscale Model Reduction Method for Partial Differential Equations
We propose a multiscale model reduction method for partial differential equations. The main purpose of this method is to derive an effective equation for multiscale problems without scale separation. An essential ingredient of our method is to decompose the harmonic coordinates into a smooth part and a highly oscillatory part so that the smooth part is invertible and the highly oscillatory part is small. Such a decomposition plays a key role in our construction of the effective equation. We show...
A necessary and sufficient condition for global existence for a quasilinear reaction-diffusion system.
A Neumann problem for a convection-diffusion equation on the half-line
We study solutions to a nonlinear parabolic convection-diffusion equation on the half-line with the Neumann condition at x=0. The analysis is based on the properties of self-similar solutions to that problem.
A new approach to initial traces in nonlinear filtration
A new error estimate for a fully finite element discretization scheme for parabolic equations using Crank-Nicolson method
Finite element methods with piecewise polynomial spaces in space for solving the nonstationary heat equation, as a model for parabolic equations are considered. The discretization in time is performed using the Crank-Nicolson method. A new a priori estimate is proved. Thanks to this new a priori estimate, a new error estimate in the discrete norm of is proved. An -error estimate is also shown. These error estimates are useful since they allow us to get second order time accurate approximations...
A new kind of the solution of degenerate parabolic equation with unbounded convection term
A new kind of entropy solution of Cauchy problem of the strong degenerate parabolic equation [...] is introduced. If u0 ∈ L∞(RN), E = {Ei} ∈ (L2(QT))N and divE ∈ L2(QT), by a modified regularization method and choosing the suitable test functions, the BV estimates are got, the existence of the entropy solution is obtained. At last, by Kruzkov bi-variables method, the stability of the solutions is obtained.
A new look at boundary perturbations of generators.
A new Monte Carlo method for solving a stationary diffusion equation.