Izv. Vyssh. Uchebn. Zaved. Mat., 2022, Number 1

JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

2022, Number 1

	Retractable and coretractable abelian groups D. Yu. Artemov	3
	About the methods of biological resourse extraction, that provide the maximum average time benefit M. S. Woldeab, L. I. Rodina	12
	Unsteady coupled elastic diffusion processes in an orthotropic cylinder taking into account diffusion fluxes relaxation N. A. Zverev, A. V. Zemskov, D. V. Tarlakovskii	25
	Global stability of systems of nonlinear Itô differential equations with aftereffect and N.V. Azbelev's $W$-method R. I. Kadiev, A. V. Ponosov	38
	Characterization of weighted mixed norm spaces of analytic functions defined in terms of conditions on the Fourier coefficients A. N. Karapetyants, I. Yu. Smirnova	57
	The influence of external environment resistance coefficient on population dynamics S. A. Kaschenko, D. O. Loginov	65
	Relative elementary definability of the class of universal graphic semiautomata in the class of semigroups R. A. Farakhutdinov	74

Brief communications
	Computable linear orders and the Ershov hierarchy Y. A. Michailovskaya, A. N. Frolov	85