TY - JOUR ID - Astashova2019 LB - Astashova2019 AU - Astashova, I. V. AU - Filinovskiy, A. V. TI - On properties of minimizers of a control problem with time-distributed functional related to parabolic equations ST - On properties of minimizers of a control problem with time-distributed functional related to parabolic equations JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2019 VL - 39 IS - 5 SP - 595 EP - 609 DO - https://doi.org/10.7494/OpMath.2019.39.5.595 UR - https://doi.org/10.7494/OpMath.2019.39.5.595 AB - We consider a control problem given by a mathematical model of the temperature control in industrial hothouses. The model is based on one-dimensional parabolic equations with variable coefficients. The optimal control is defined as a minimizer of a quadratic cost functional. We describe qualitative properties of this minimizer, study the structure of the set of accessible temperature functions, and prove the dense controllability for some set of control functions. KW - parabolic equation KW - extremal problem KW - quadratic cost functional KW - minimizer KW - exact controllability KW - dense controllability SN - 1232-9274 ER -