In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient condit...In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient conditions are established. In particular, for the alm ost periodic system , the existence of strictly positive alm ostperiodic solutions is obtained. Som e previous results are im proved and generalized.展开更多
This paper is concerned with strictly k-convex large solutions to Hessian equations Sk(D2u(x))=b(x)f(u(x)),x∈Ω,whereΩis a strictly(k-1)-convex and bounded smooth domain in Rn,b∈C∞(Ω)is positive inΩ,but may be v...This paper is concerned with strictly k-convex large solutions to Hessian equations Sk(D2u(x))=b(x)f(u(x)),x∈Ω,whereΩis a strictly(k-1)-convex and bounded smooth domain in Rn,b∈C∞(Ω)is positive inΩ,but may be vanishing on the boundary.Under a new structure condition on f at infinity,the author studies the refined boundary behavior of such solutions.The results are obtained in a more general setting than those in[Huang,Y.,Boundary asymptotical behavior of large solutions to Hessian equations,Pacific J.Math.,244,2010,85–98],where f is regularly varying at infinity with index p>k.展开更多
This paper is concerned with the boundary behavior of strictly convex large solutions to the Monge–Ampère equation det D^2u(x) = b(x)f(u(x)), u >0, x∈Ω, where Ω is a strictly convex and bounded smooth doma...This paper is concerned with the boundary behavior of strictly convex large solutions to the Monge–Ampère equation det D^2u(x) = b(x)f(u(x)), u >0, x∈Ω, where Ω is a strictly convex and bounded smooth domain in R^N with N ≥ 2, f is normalized regularly varying at infinity with the critical index N and has a lower term, and b∈C~∞(Ω) is positive in Ω, but may be appropriate singular on the boundary.展开更多
In this paper,we consider an abstract third-order differential equation and deduce some results on the maximal regularity of its strict solution.We assume that the inhomogeneity appearing in the right-hand term of thi...In this paper,we consider an abstract third-order differential equation and deduce some results on the maximal regularity of its strict solution.We assume that the inhomogeneity appearing in the right-hand term of this equation belongs to some anistropic Holder spaces.We illustrate our results by a BVP involving a 3D Laplacian posed in a cusp domain of R^(4).展开更多
By using the method of coincidence degree and Lyapunov functional, a set ofeasily applicable criteria are established for the global existence and global asymptotic stabilityof strictly positive (componentwise) period...By using the method of coincidence degree and Lyapunov functional, a set ofeasily applicable criteria are established for the global existence and global asymptotic stabilityof strictly positive (componentwise) periodic solution of a periodic n-species Lotka-Volterracompetition system with feedback controls and several deviating arguments. The problem considered inthis paper is in many aspects more general and incorporate as special cases various problems whichhave been studied extensively in the literature. Moreover, our new criteria, which improve andgeneralize some well known results, can be easily checked.展开更多
文摘In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient conditions are established. In particular, for the alm ost periodic system , the existence of strictly positive alm ostperiodic solutions is obtained. Som e previous results are im proved and generalized.
基金the National Natural Science Foundation of China(No.11571295)RP of Shandong Higher Education Institutions(No.J17KA173)。
文摘This paper is concerned with strictly k-convex large solutions to Hessian equations Sk(D2u(x))=b(x)f(u(x)),x∈Ω,whereΩis a strictly(k-1)-convex and bounded smooth domain in Rn,b∈C∞(Ω)is positive inΩ,but may be vanishing on the boundary.Under a new structure condition on f at infinity,the author studies the refined boundary behavior of such solutions.The results are obtained in a more general setting than those in[Huang,Y.,Boundary asymptotical behavior of large solutions to Hessian equations,Pacific J.Math.,244,2010,85–98],where f is regularly varying at infinity with index p>k.
基金supported by NSF of P.R.China(Grant No.11571295)
文摘This paper is concerned with the boundary behavior of strictly convex large solutions to the Monge–Ampère equation det D^2u(x) = b(x)f(u(x)), u >0, x∈Ω, where Ω is a strictly convex and bounded smooth domain in R^N with N ≥ 2, f is normalized regularly varying at infinity with the critical index N and has a lower term, and b∈C~∞(Ω) is positive in Ω, but may be appropriate singular on the boundary.
文摘In this paper,we consider an abstract third-order differential equation and deduce some results on the maximal regularity of its strict solution.We assume that the inhomogeneity appearing in the right-hand term of this equation belongs to some anistropic Holder spaces.We illustrate our results by a BVP involving a 3D Laplacian posed in a cusp domain of R^(4).
文摘By using the method of coincidence degree and Lyapunov functional, a set ofeasily applicable criteria are established for the global existence and global asymptotic stabilityof strictly positive (componentwise) periodic solution of a periodic n-species Lotka-Volterracompetition system with feedback controls and several deviating arguments. The problem considered inthis paper is in many aspects more general and incorporate as special cases various problems whichhave been studied extensively in the literature. Moreover, our new criteria, which improve andgeneralize some well known results, can be easily checked.
