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Information × Registration Number 0209U005180, 0107U002043 , R & D reports Title Group-analitical methods in theories of operator preturbations, nonlinear dynamical systems, value distributions of meromorfic functions popup.stage_title Head Zabolotsky M.V., Kondratyuk A.A., Registration Date 21-01-2009 Organization Ivan Franko Lviv National University popup.description2 Spectra of Sturm-Liouville, Bessel and Dirac operators with singular potentials are discribed. Theory of value distribution of meromorphic and subharmonic functions in multiply connected domains, harmonic analysis methods for pluri-subharmonic functions are developed. Algebraic methods for solitons and integrable field theory models are analized. Local-gradient thermoelsticity models are obtained. Product Description popup.authors popup.nrat_date 2020-04-02 Close