In this paper, we present a lower bound for the first eigenvalue of the total Spaces of some class of Riemannian submersions.

给出了一类黎曼浸没在全空间中第一特征值的下界估计。

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In this paper an estimation of lower bound of minimum eigenvalue for the integral equation is obtained. Based on this estimation we introduce a new method for the corresponding eigenvalue calculation.

导出了具有正定对称核的积分方程最小特征值的一个下界估计式。 以此为基础，获得了相应特征值的一种算法。

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