An observability estimate for parabolic equations from a mesurable set in time and its applications

نویسندگان

  • Kim Dang Phung
  • Gengsheng Wang
چکیده

Abstract. This paper presents a new observability estimate for parabolic equations in × (0, T ), where  is a convex domain. The observation region is restricted over a product set of an open nonempty subset of  and a subset of positive measure in (0, T ). This estimate is derived with the aid of a quantitative unique continuation at one point in time. Applications to the bang-bang property for norm and time optimal control problems are provided.

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تاریخ انتشار 2013