2017, Volume 81, Issue 5

This issue is dedicated to the 80th anniversary of the journal

	On free groups in the infinitely based varieties of S. I. Adian S. I. Adian, V. S. Atabekyan Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 889–900 DOI: https://doi.org/10.1070/IM8631 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 3–14 DOI: https://doi.org/10.4213/im8631		889–900
	Constructions of families of three-dimensional polytopes, characteristic patches of fullerenes, and Pogorelov polytopes V. M. Buchstaber, N. Yu. Erokhovets Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 901–972 DOI: https://doi.org/10.1070/IM8665 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 15–91 DOI: https://doi.org/10.4213/im8665		901–972
	An analogue of Pontryagin's maximum principle in problems of minimization of multiple integrals M. I. Zelikin Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 973–984 DOI: https://doi.org/10.1070/IM8622 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 92–104 DOI: https://doi.org/10.4213/im8622		973–984
	Degenerations of Kählerian K3 surfaces with finite symplectic automorphism groups. III V. V. Nikulin Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 985–1029 DOI: https://doi.org/10.1070/IM8629 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 105–149 DOI: https://doi.org/10.4213/im8629		985–1029
	Dicritical singularities and laminar currents on Levi-flat hypersurfaces S. I. Pinchuk, R. G. Shafikov, A. B. Sukhov Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 1030–1043 DOI: https://doi.org/10.1070/IM8582 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 150–164 DOI: https://doi.org/10.4213/im8582		1030–1043
	On lower semicontinuity of the entropic disturbance and its applications in quantum information theory M. E. Shirokov, A. S. Holevo Izvestiya: Mathematics, 2017, Volume 81, Issue 5, Pages 1044–1060 DOI: https://doi.org/10.1070/IM8609 Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya, 2017, Volume 81, Issue 5, Pages 165–182 DOI: https://doi.org/10.4213/im8609		1044–1060