设Lp^n＋p是截面曲率KL满足条件KL≥a（a是实数的伪黎曼空间，M^n（n≥2）是Lp^n＋p中的紧致类空子流形。本文得到了M^n上Laplacian算子的第一特征值的两个积分不等式。%Let Lp^n+p be a Pseudo-Riemannian space with sectional curvature KL satisfy KL≥a,LetM^n(n≥2)be compact space-like submanifold in Lp^n+p .we obtain two integral inequalities for the first eigenvalue λ1 of Laplacian on M^n.
展开▼
