Ming Wang

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20242026

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4 papers · 1 filter

math.AP2026

Controllable subspaces and real-part observability for Schrödinger equations on $T^{d}$

Gengsheng Wang, Ming Wang

We study internal controllability of Schrödinger equations on tori with controls acting only through their real parts. This real-part constraint leads to a real-linear control prob…

math.AP2026

On smoothness of extremizers of the Tomas-Stein inequality for $S^{1}$

Shuanglin Shao, Ming Wang

We prove that the extremizers to the Tomas-Stein inequality for the one dimension sphere are smooth. This is achieved by studying the associated Euler-Lagrange equation.

math.CA2026

Conditional existence of maximizers for the Tomas-Stein inequality for the sphere

Shuanglin Shao, Ming Wang

The Tomas-Stein inequality for a compact subset $I^$ of the sphere $S^{d}$ states that the mapping $f \mapsto f I ¨ $ is bounded from $L^{2} (I^, I ¨ )$ to $L^{2 + 4/ d} (R^{d + 1})$ . The…

math.AP2026

Curved Ingham inequalities and observability of the toroidal Schr{Ã¶}dinger equation

Bernhard H Haak, Philippe Jaming, Ming Wang +1

We prove that solutions of the toroidal Schr{Ã¶}dinger equation can be observed from suitably curved space-time trajectories, thus of zero Lebesgue measure. To do so, we establish…

Controllable subspaces and real-part observability for Schrödinger equations on Td

On smoothness of extremizers of the Tomas-Stein inequality for S1

Conditional existence of maximizers for the Tomas-Stein inequality for the sphere

Curved Ingham inequalities and observability of the toroidal Schr{Ã¶}dinger equation

Controllable subspaces and real-part observability for Schrödinger equations on $T^{d}$

On smoothness of extremizers of the Tomas-Stein inequality for $S^{1}$