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Graphs of Mappings of Engel Groups and a Criterion for Their Intrinsic Lipschitz Property Full article

Journal Siberian Mathematical Journal
ISSN: 0037-4466 , E-ISSN: 1573-9260
Output data Year: 2026, Volume: 67, Number: 4, Pages: 811-831 Pages count : 17 DOI: 10.1134/s0037446626040075
Tags Lipschitz mapping, intrinsic metric, graph mapping, Engel group, three-step Carnot group
Authors Karmanova M.B. 1
Affiliations
1 Sobolev Institute of Mathematics, Novosibirsk, Russia

Funding (1)

1 Министерство науки и высшего образования РФ FWNF-2026-0022

Abstract: For classes of mappings of Engel groups, we establish a criterion for the intrinsic, i.e., sub-Riemannian, Lipschitz property of the graphs constructed by these mappings. Moreover, we obtain a complete description of three-step Carnot groups of a special form that admit the existence of images of intrinsically Lipschitz graphs on them. Several examples of structures and mappings are presented.
Cite: Karmanova M.B.
Graphs of Mappings of Engel Groups and a Criterion for Their Intrinsic Lipschitz Property
Siberian Mathematical Journal. 2026. V.67. N4. P.811-831. DOI: 10.1134/s0037446626040075 WOS Scopus РИНЦ OpenAlex
Original: Карманова М.Б.
Графики отображений групп Энгеля и критерий их внутренней липшицевости
Сибирский математический журнал. 2026. Т.67. №4. С.650-673. DOI: 10.33048/smzh.2026.67.407 РИНЦ
Dates:
Submitted: Apr 14, 2026
Accepted: Apr 23, 2026
Published online: Jul 30, 2026
Identifiers:
≡ Web of science: WOS:001837323400020
≡ Scopus: 2-s2.0-105046281392
≡ Elibrary: 91863794
≡ OpenAlex: W7171854537
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