Entreaty
发表于 2025-3-28 17:14:51
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granite
发表于 2025-3-28 19:54:38
Willem-Jan Pannekoek,Johannes L. Bosthe Möbius transformation .. A lift of an element α ∈ PSL (2, ℂ) is an element A ∈ SL (2, ℂ) with P (A) = α, while a lift of a subgroup . of PSL(2, ℂ) is an isomorphism . SL(2, ℂ) such that P . is the identity.
眼界
发表于 2025-3-29 02:34:09
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哑巴
发表于 2025-3-29 06:58:28
,H. E. Rauch, Géomètre Différentiel,uch. Un texte de dix-huit pages et au titre modeste. Ce n’était pas le premier travail de l’auteur, qui avait fait auparavant un PhD intitulé «Generalizations of some classical theorems to the case of functions of several variables» sous la direction de Salomon Bochner (Princeton 1947).
自传
发表于 2025-3-29 10:38:43
H. E. Rauch, Function Theorist,and with M. Gerstenhaber propose a forward-looking method for using the then undeveloped theory of harmonic maps to prove Teichmüller’s theorem about extremal quasi-conformal maps. His 1979 paper with L. Keen and A. T. Vasquez sheds interesting light on the accessory parameter problem in t
Iatrogenic
发表于 2025-3-29 14:35:54
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FELON
发表于 2025-3-29 18:45:34
,Möbius Transformations and Clifford Numbers,es the Möbius transformations in terms of the matrix group .(. + 1,1). While very satisfactory from a theoretical point of view it leads quickly to overly complicated formulas, and I have therefore advocated an approach which works directly in ℝ. and uses formulas strikingly analogous to those in th
BOOST
发表于 2025-3-29 20:07:34
,Extremal Kähler Metrics II,. of all Kahler metrics in . in that class. To each (.) ∈ G. we assign the non-negative real number . (.. = scalar curvature, ... volume element)..Aiming to find a (.) ∈ ℊ. that minimizes the function ., we study the geometric properties in M of any (.) ∈ ℊ. that is a critical point of ., with the f
阻止
发表于 2025-3-30 03:31:47
Deformation of Surfaces Preserving Principal Curvatures,plex case, so that his surfaces are analytic, and the results are different from the real case. After the works of a number of mathematicians, W. C. Graustein took up the real case in 1924-, without completely settling the problem. An authoritative study of this problem was carried out by Elie Carta
植物茂盛
发表于 2025-3-30 05:50:59
One-Dimensional Metric Foliations in Constant Curvature Spaces,., which we call . foliations for short. The leaves of . are locally fibers of Riemannian submersions, and thus everywhere equidistant. Such foliations . will turn out to be either flat or homogeneous. As a global application we obtain that the Hopf fibrations S. → ℂ .. are the only metric fibration