Qing Cui

activity

20152026

most citedSecond Order Necessary Conditions for Optimal Control Problems on Riemannian Manifolds

3 citations · 6 across the 5 of their papers we have counts for

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Showing 2026 · math.DGShow all

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math.DG2026

A topological sphere theorem for pinched Legendrian submanifolds

Qing Cui, Linlin Sun

Let $M^{n}$ be a closed simply connected Legendrian submanifold of $S^{2 n + 1}$ , where $n \geq 5$ , and let $B$ and $H = tr B$ denote its se…

math.DG2026

A curvature characterization of the Cartan minimal hypersurface in $S^{5}$

Qing Cui

Lawson showed that a non-totally geodesic Einstein minimal hypersurface in $S^{5}$ is congruent to the Clifford hypersurface $\mathbb S^2(1/\sqrt2)\times \mathbb S^2(1/\sqrt2…

A topological sphere theorem for pinched Legendrian submanifolds

A curvature characterization of the Cartan minimal hypersurface in S5

A curvature characterization of the Cartan minimal hypersurface in $S^{5}$