Time Optimal Controls of Semilinear Heat Equation with Switching Control. - Lijuan Wang; Qishu Yan (J. Optim. Theory Appl., 2015)

Bang-Bang Property of Time Optimal Null Controls for Some Semilinear Heat Equation. - Lijuan Wang; Qishu Yan (SIAM J. Control. Optim., 2016)

Computation of Time Optimal Control Problems Governed by Linear Ordinary Differential Equations. - Xiliang Lu; Lijuan Wang; Qishu Yan (J. Sci. Comput., 2017)

Constrained Approximate Null Controllability of The Coupled Heat Equation with Impulse Controls. - Lijuan Wang; Qishu Yan; Huaiqiang Yu (SIAM J. Control. Optim., 2021)