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On the asymptotic behavior of solutions of second order parabolic partial differential equations

Wei-Cheng Lian, Cheh-Chih Yeh (1996)

Annales Polonici Mathematici

We consider the second order parabolic partial differential equation    i , j = 1 n a i j ( x , t ) u x i x j + i = 1 n b i ( x , t ) u x i + c ( x , t ) u - u t = 0 . Sufficient conditions are given under which every solution of the above equation must decay or tend to infinity as |x|→ ∞. A sufficient condition is also given under which every solution of a system of the form    L α [ u α ] + β = 1 N c α β ( x , t ) u β = f α ( x , t ) , where    L α [ u ] i , j = 1 n a i j α ( x , t ) u x i x j + i = 1 n b i α ( x , t ) u x i - u t , must decay as t → ∞.

On the asymptotics of solutions to the second initial boundary value problem for Schrödinger systems in domains with conical points

Nguyen Manh Hung, Hoang Viet Long, Nguyen Thi Kim Son (2013)

Applications of Mathematics

In this paper, for the second initial boundary value problem for Schrödinger systems, we obtain a performance of generalized solutions in a neighborhood of conical points on the boundary of the base of infinite cylinders. The main result are asymptotic formulas for generalized solutions in case the associated spectrum problem has more than one eigenvalue in the strip considered.

On the Caginalp system with dynamic boundary conditions and singular potentials

Laurence Cherfils, Alain Miranville (2009)

Applications of Mathematics

This article is devoted to the study of the Caginalp phase field system with dynamic boundary conditions and singular potentials. We first show that, for initial data in H 2 , the solutions are strictly separated from the singularities of the potential. This turns out to be our main argument in the proof of the existence and uniqueness of solutions. We then prove the existence of global attractors. In the last part of the article, we adapt well-known results concerning the Łojasiewicz inequality in...

On the Convective Cahn-Hilliard Equation

Changchun Liu (2005)

Bulletin of the Polish Academy of Sciences. Mathematics

The author studies the convective Cahn-Hilliard equation. Some results on the existence of classical solutions and asymptotic behavior of solutions are established. The instability of the traveling waves is also discussed.

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