An estimate of the first eigenvalue of a Schrödinger operator on closed surfaces

An estimate of the first eigenvalue of a Schrödinger operator on closed surfaces
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by Teng Fei and Zhijie Huang PDF

Proc. Amer. Math. Soc. 146 (2018), 1599-1602 Request permission

In this paper we establish an upper bound for the first eigenvalue of a Shrödinger operator on compact Riemann serfaces in terms of its diameter.

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