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Information × Registration Number 0205U000282, 0102U001614 , R & D reports Title Development of numerically-analytical methods of investigation of nonlinear essentially ill-posed problems of antenna systems synthesis using energy criterion popup.stage_title Head Vojtovych M.M., Savenko P.O., Registration Date 24-01-2005 Organization Pidstryhach Institute of Applied Problems of Mechanics and Mathematics NAS of Ukraine popup.description2 Mathematical models and numerically-analitical methods are developed for solving nonlinear inverse strictly ill-posed synthesis problems of various radiating systems with using noncomplete input data. Nonuniqueness and branching of the solutions to the synthesis problems of the microstripped and waveguides antenna arrays are investigated. The methods for solving nonlinear inverse problems about nonregular waveguides are developed. Two algorithms for solving nonlinear spectral problems in the finite- and infinite-dimensional spaces are proposed and justified. Product Description popup.authors popup.nrat_date 2020-04-02 Close