Results 41 to 50 of about 739,090 (133)

ABOUT THE RELATIONSHIP BETWEEN LOBACHEVSKY AND GAUSS (THE 225-TH ANNIVERSARY OF N.I. LOBACHEVSKY AND 240-TH ANNIVERSARY OF K.F. GAUSS) [PDF]

, 2017
В работе на основе новых документов обсуждается история вопроса о взаимоотношениях Лобачевского и Гаусса, избрания Лобачевского членом-корреспондентом Гёттингенского научного общества.The paper discusses the history of the question of the Lobachevsky and
Гильмуллин М.Ф.
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LAGERR'S TRANSFORMATIONS IN PSEUDOEUCLIDEAN SPACES AND GEOMETRY OF LOBACHEVSKY

, 1992
Analogs of Lagerr's transformations in ideal regions of a plane and three-dimensional space of Lobachevsky are considered in the paper aiming at the investigation of Lagerr's transformation analogs in an ideal region of a Lobachevsky's plane in the ...
Shustova, Xenia Petrovna
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On the path integral in imaginary Lobachevsky space

, 1994
The path integral on the single-sheeted hyperboloid, i.e. in D-dimensional imaginary Lobachevsky space, is evaluated. A potential problem which we call the 'Kepler problem', and the case of a constant magnetic field are also ...
Grosche, C., C Grosche
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Quasi-Plane Waves for a Particle with Spin 1/2 on the Background of Lobachevsky Geometry: Simulating of a Special Medium

, 2012
In the paper complete systems of exact solutions for Dirac and Weyl equations in the Lobachevsky space H3 are constructed on the base of the method of separation of the variables in quasi-cartesian coordinates. An extended helicity operator is introduced.
Ovsiyuk, E.
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ABOUT THE RELATIONSHIP BETWEEN LOBACHEVSKY AND GAUSS (THE 225-TH ANNIVERSARY OF N.I. LOBACHEVSKY AND 240-TH ANNIVERSARY OF K.F. GAUSS)

, 2020
87-91В работе на основе новых документов обсуждается история вопроса о взаимоотношениях Лобачевского и Гаусса, избрания Лобачевского членом-корреспондентом Гёттингенского научного общества.The paper discusses the history of the question of the ...
Гильмуллин М.Ф.
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Algebras of differential invariants for the Lobachevsky and de Sitter geometries

, 2010
Описано дiї алгебри Лi sl2(R) на площинi. Показано, що iснують двi примiтивнi дiї, якi вiдповiдають геометрiям Лобачевського i де Сiттера, а також наведено класифiкацiю iмпримiтивних дiй.
Лычагин, В.В., Коновенко, Н.Г.   +1 more
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ABOUT HERITAGE PRESERVATION OF N.I. LOBACHEVSKY BY KAZAN MATHEMATICIANS AND ABOUT THE HISTORY OF THE CREATION OF THE MUSEUM OF N.I. LOBACHEVSKY AT KAZAN UNIVERSITY

, 2020
122-125Статья посвящена истории сохранения наследия Н.И. Лобачевского казанскими математиками и истории создания музея Н.И. Лобачевского в Казанском университете.The article is devoted to the history of heritage preservation N.
Широкова О.А.
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N.I. LOBACHEVSKY AND SCHOOL GEOMETRY COURSE [PDF]

, 2017
В статье рассмотрены исторические предпосылки возникновения и концепция Н.И. Лобачевского построения школьного курса геометрии, ее связь с современными взглядами на школьный учебник геометрии.The article considers historical preconditions and the concept
Орлов В.В.
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Considerazioni sullo spazio di Lobachevsky-Einstein

, 1984
We show as a metric tensor in the Lobachevsky-Einstein space follows by particularizing that one characteristic of the three dimensional spaces having constant curvature.
Crupi, Giovanni
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Some constructive applications of $Λ^{2}$-representations to integration of PDEs [PDF]

, 2000
Two new applications of $Λ^{2}$-representations of PDEs are presented: 1. Geometric algorithms for numerical integration of PDEs by constructing planimetric discrete nets on the Lobachevsky plane $Λ^{2}$. 2.
Popov, A., Zadadaev, S.
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