In this paper, existence and uniqueness of the generalized global solution and the classical global solution to the initial value problem for a class of fourth-order nonlinear wave equations are studied in the fractio...In this paper, existence and uniqueness of the generalized global solution and the classical global solution to the initial value problem for a class of fourth-order nonlinear wave equations are studied in the fractional order Sobolev space using the contraction mapping principle and the extension theorem. The sufficient conditions for the blow up of the solution to the initial value problem are given.展开更多
This paper studies the initial boundary value problem for a generalized Boussinese equation and proves the existence and uniqueness of the local generalized solution of the problem by using the Galerkin method. Moreov...This paper studies the initial boundary value problem for a generalized Boussinese equation and proves the existence and uniqueness of the local generalized solution of the problem by using the Galerkin method. Moreover, it gives the sufficient conditions of blow-up of the solution in finite time by using the concavity method.展开更多
This paper studies the conditions of blow up in finite time of solutions of initial boundary value problem for a class nonlinear doubly degenerate parabolic equation.
The existence of global solutions, asymptotic behavior and the L^p blow-up of non-global solutions to the initial value problem are studied. We consider only the case: 1<γ<(n+2)/(n—2). It is proved that the pr...The existence of global solutions, asymptotic behavior and the L^p blow-up of non-global solutions to the initial value problem are studied. We consider only the case: 1<γ<(n+2)/(n—2). It is proved that the properties of the solutions depend only on the relations between the initial data φ(x) and the unique positive equilibrium solution. The threshold is obtained.展开更多
基金supported by the National Natural Science Foundation of China (No. 10671182)
文摘In this paper, existence and uniqueness of the generalized global solution and the classical global solution to the initial value problem for a class of fourth-order nonlinear wave equations are studied in the fractional order Sobolev space using the contraction mapping principle and the extension theorem. The sufficient conditions for the blow up of the solution to the initial value problem are given.
基金Project supported by the National Natural Science Foundation of China (No.10671182)the Excellent Youth Teachers Foundation of High College of Henan Province of China
文摘This paper studies the initial boundary value problem for a generalized Boussinese equation and proves the existence and uniqueness of the local generalized solution of the problem by using the Galerkin method. Moreover, it gives the sufficient conditions of blow-up of the solution in finite time by using the concavity method.
文摘This paper studies the conditions of blow up in finite time of solutions of initial boundary value problem for a class nonlinear doubly degenerate parabolic equation.
基金Project supported by the Post Doctor Foundation of China.
文摘The existence of global solutions, asymptotic behavior and the L^p blow-up of non-global solutions to the initial value problem are studied. We consider only the case: 1<γ<(n+2)/(n—2). It is proved that the properties of the solutions depend only on the relations between the initial data φ(x) and the unique positive equilibrium solution. The threshold is obtained.