V. I. Tsurkov Eng. Cybern. , vol.19 No.5 , 01.1981 , p. 9-17, language: английский ISSN 0013-788X  Аннотация A formulation of hierarchical optimal control problems is given, in which the sybsystems are described by heat equations. Using the Fourier method and iterative aggregation is more efficient than direct solving by Pontryagin maximum principle.  Ключевые слова multidimensional systems with distributed parameters, maximum principle, Fourier method, iterative aggregation