Supported by the Differential Equation Innovation Team(CXTD003,2013XYZ19)
The multi-symplectic geometry for the GSDBM equation is presented in this paper. The multi-symplectic formulations for the GSDBM equation are presented and the local conservation laws are shown to correspond to certai...
Foundation item: Supported by the National Natural Science Foundation of China(61070229); Supported by the Natural Science Foundation of Shanxi Province(2008011010)
A digraph D is k-ordered if for every sequence S:v 1,v 2,…,v k of k distinct vertices,there exists a cycle C such that C encounters the vertices of S in the specified order.In particular,we say that D is k-ordered h...
Let G be a 3-connected graph with n vertices. The paper proves that if for each pair of vertices u and v of G, d(u,v)=2, has |N(u)∩N(v)|≤α(α is the minimum independent set number), and then max{d(u),d(v)}≥n+12,...
Ewa·Wojcicka [1] has proved that the connected 3 γ critical graphs has a H path and has put forward to such a conjecture: Connected 3 γ critical graphs without endpoints are H graphs. In this paper,we prove that if...