%0 Journal Article %T Bang-bang property of time optimal controls for some semilinear heat equation %A Lijuan Wang %A Qishu Yan %J Mathematics %D 2015 %I arXiv %X In this paper, we derive a bang-bang property of a kind of time optimal control problem for some semilinear heat equation on bounded $C^2$ domains (of the Euclidean space), with homogeneous Dirichlet boundary condition and controls distributed on an open and non-empty subset of the domain where the equation evolves. %U http://arxiv.org/abs/1510.03673v1