2 | Jingrui NIU (牛景瑞)</generator><language>en-us</language><lastBuildDate>Sat, 18 Jul 2026 18:21:43 +0100</lastBuildDate><image><url>https://jingrui-niu.github.io/media/icon_hu45c9839be480b0dfcda3443716bc9ecf_113247_512x512_fill_lanczos_center_3.png</url><title>2https://jingrui-niu.github.io/publication-type/2/The periodic KdV with control on space-time measurable setshttps://jingrui-niu.github.io/publication/the-periodic-kdv-with-control-on-space-time-measurable-sets/Sat, 18 Jul 2026 18:21:43 +0100https://jingrui-niu.github.io/publication/the-periodic-kdv-with-control-on-space-time-measurable-sets/Geometric condition for the observability of electromagnetic Schrödinger operators on T^2https://jingrui-niu.github.io/publication/geometric-conditions-for-the-observability-of-schrodinger-operators-on-tori/Mon, 04 May 2026 18:21:43 +0100https://jingrui-niu.github.io/publication/geometric-conditions-for-the-observability-of-schrodinger-operators-on-tori/Controllability of a coupled wave system with a single control and different speedshttps://jingrui-niu.github.io/publication/control-with-cascade-coupling/Sun, 04 Jan 2026 18:21:43 +0100https://jingrui-niu.github.io/publication/control-with-cascade-coupling/Sharp control cost for dispersive equations on the torushttps://jingrui-niu.github.io/publication/sharp-cost-for-dispersive-equations-on-the-torus/Thu, 20 Nov 2025 18:21:43 +0100https://jingrui-niu.github.io/publication/sharp-cost-for-dispersive-equations-on-the-torus/Observability and controllability for Schrödinger equations in the semi-periodic settinghttps://jingrui-niu.github.io/publication/controlnls-in-waveguide/Thu, 13 Feb 2025 18:21:43 +0100https://jingrui-niu.github.io/publication/controlnls-in-waveguide/Controllability of quasi-linear Hamiltonian Schrödinger equations on torihttps://jingrui-niu.github.io/publication/control-quasilinear-schrodinger-on-tori/Thu, 16 Mar 2023 18:21:43 +0100https://jingrui-niu.github.io/publication/control-quasilinear-schrodinger-on-tori/Simultaneous control of wave systemshttps://jingrui-niu.github.io/publication/sicon/Fri, 30 Jul 2021 18:21:43 +0100https://jingrui-niu.github.io/publication/sicon/