Tsar’kov, Igor’ G. Smooth solutions of the eikonal equation and the behaviour of local minima of the distance function. (English. Russian original) Zbl 1429.41034 Izv. Math. 83, No. 6, 1234-1258 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 167-194 (2019). MSC: 41A65 54C60 78A05 PDFBibTeX XMLCite \textit{I. G. Tsar'kov}, Izv. Math. 83, No. 6, 1234--1258 (2019; Zbl 1429.41034); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 167--194 (2019) Full Text: DOI
Nikulin, Vyacheslav V. Classification of degenerations and Picard lattices of Kählerian \(K3\) surfaces with symplectic automorphism group \(D_6\). (English. Russian original) Zbl 1457.14085 Izv. Math. 83, No. 6, 1201-1233 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 133-166 (2019). Reviewer: David McKinnon (Waterloo) MSC: 14J28 14J50 14J10 14C22 PDFBibTeX XMLCite \textit{V. V. Nikulin}, Izv. Math. 83, No. 6, 1201--1233 (2019; Zbl 1457.14085); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 133--166 (2019) Full Text: DOI
Korpusov, Maksim O.; Panin, Aleksandr A. Instantaneous blow-up versus local solubility of the Cauchy problem for a two-dimensional equation of a semiconductor with heating. (English. Russian original) Zbl 1437.35107 Izv. Math. 83, No. 6, 1174-1200 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 104-132 (2019). MSC: 35B44 35K30 35D30 35K58 PDFBibTeX XMLCite \textit{M. O. Korpusov} and \textit{A. A. Panin}, Izv. Math. 83, No. 6, 1174--1200 (2019; Zbl 1437.35107); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 104--132 (2019) Full Text: DOI
Vedyushkina, Viktoriya V.; Fomenko, Anatoliĭ T. Integrable geodesic flows on orientable two-dimensional surfaces and topological billiards. (English. Russian original) Zbl 1436.37068 Izv. Math. 83, No. 6, 1137-1173 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 63-103 (2019). MSC: 37J39 37J35 37C83 37D40 53D25 37C15 PDFBibTeX XMLCite \textit{V. V. Vedyushkina} and \textit{A. T. Fomenko}, Izv. Math. 83, No. 6, 1137--1173 (2019; Zbl 1436.37068); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 63--103 (2019) Full Text: DOI
Buchstaber, Viktor M.; Limonchenko, Ivan Yu. Massey products, toric topology and combinatorics of polytopes. (English. Russian original) Zbl 1430.13034 Izv. Math. 83, No. 6, 1081-1136 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 3-62 (2019). Reviewer: S. A. Seyed Fakhari (Tehran) MSC: 13F55 14M25 55S30 52B11 PDFBibTeX XMLCite \textit{V. M. Buchstaber} and \textit{I. Yu. Limonchenko}, Izv. Math. 83, No. 6, 1081--1136 (2019; Zbl 1430.13034); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 3--62 (2019) Full Text: DOI arXiv