Guofang Wei

activity

19942026

most citedOn the universal cover and the fundamental group of an

R C D^{*} (K, N)

-space

26 citations · 177 across the 51 of their papers we have counts for

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Showing 2019 · math.DGShow all

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math.DG2019

Explicit fundamental gap estimates for some convex domains in $H^{2}$

Theodora Bourni, Julie Clutterbuck, Xuan Hien Nguyen +3

Motivated by an example of Shih, we compute the fundamental gap of a family of convex domains in the hyperbolic plane $H^{2}$ , showing that for some of them $λ_2 - λ_1 < \fra…

math.DG2019★ 13 cited

Semi-local simple connectedness of non-collapsing Ricci limit spaces

Jiayin Pan, Guofang Wei

Let $X$ be a non-collapsing Ricci limit space and let $x \in X$ . We show that for any $ε > 0$ , there is $r > 0$ such that every loop in $B_{t} (x)$ is contractible in $B_{(1 + ε) t} (x)$ , wher…

Explicit fundamental gap estimates for some convex domains in H2

Semi-local simple connectedness of non-collapsing Ricci limit spaces

Explicit fundamental gap estimates for some convex domains in $H^{2}$