投射技术 发表于 2025-3-21 18:48:09

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jet-lag 发表于 2025-3-21 20:14:29

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辩论 发表于 2025-3-22 00:24:41

,Análisis de impacto presupuestario,Let . be a finitely generated group with a finite generating set .. Then . determines a . function ℓ on . (see §1 below) which is used to define the . of .:. recently there has been a lot of interest in the study of these series.

cravat 发表于 2025-3-22 05:54:12

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Ferritin 发表于 2025-3-22 09:48:59

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别炫耀 发表于 2025-3-22 15:33:19

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MOAT 发表于 2025-3-22 19:49:43

Group Actions on Non-Archimedean Trees,Let Λ be a (totally) ordered abelian group. Let . be a Λ-tree, as defined in [.] (see also [.] for various equivalent definitions). Let Γ be a group acting (without inversion) on ..

浅滩 发表于 2025-3-22 23:48:04

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一夫一妻制 发表于 2025-3-23 05:22:34

On a Problem Raised by Alperin and Bass,presented in (Serre’s book) “Trees” for the case Λ = ℤ..The aim of this paper is to give a possible answer to the question above by extending to arbitrary ordered abelian groups Λ the main constructions and results contained in the first chapter of Serre’s book.

arousal 发表于 2025-3-23 05:41:36

Geodesic currents on negatively curved groups,ty like a tree. Considering the action of a negatively curved group on one of its Cayley graphs, we study asymptotic directions in the set of conjugacy classes of this group. We then discuss some applications to group actions on ℝ — trees and manifolds of negative curvature.
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查看完整版本: Titlebook: Arboreal Group Theory; Proceedings of a Wor Roger C. Alperin Conference proceedings 1991 Springer-Verlag New York, Inc. 1991 Group theory.a