Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Ralph Strebel"'
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We show that several classes of groups G of PL-homeomorphisms of the real line admit nontrivial homomorphisms χ:G→R that are fixed by every automorphism of G. The classes enjoying the stated property include the generalizations of Thompson’s gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88b697c8a397c7505d64943c92b84a2
https://doi.org/10.2140/pjm.2017.287.101
https://doi.org/10.2140/pjm.2017.287.101
Autor:
J. R. J. Groves, Ralph Strebel
Publikováno v:
Journal of Group Theory. 17:1-12
We show that every finitely generated nilpotent group of class 2 occurs as the quotient of a finitely presented abelian-by-nilpotent group by its largest nilpotent normal subgroup.
This second version takes into account the suggestions by the re
This second version takes into account the suggestions by the re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83cad4c6c41472d61d3004be87f5c4ad
https://doi.org/10.1515/jgt-2013-0040
https://doi.org/10.1515/jgt-2013-0040
Autor:
Robert Bieri, Ralph Strebel
Richard Thompson's famous group $F$ has the striking property that it can be realized as a dense subgroup of the group of all orientation-preserving homeomorphisms of the unit interval, but it can also be given by a simple 2-generator-2-relator prese
Autor:
Ralph Strebel, Robert Bieri
Publikováno v:
On Groups of PL-homeomorphisms of the Real Line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36715dd22f19297202fbbd03e22fce5f
https://doi.org/10.1090/surv/215/02
https://doi.org/10.1090/surv/215/02
Autor:
Ralph Strebel, Robert Bieri
Publikováno v:
On Groups of PL-homeomorphisms of the Real Line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a155aa737a00b68aead93cb2240979e4
https://doi.org/10.1090/surv/215/06
https://doi.org/10.1090/surv/215/06
Autor:
Ralph Strebel
A recipe for obtaining finitely presented abelian-by-nilpotent groups is given. It relies on a geometric procedure that generalizes the construction of finitely presented metabelian groups introduced by R. Bieri and R. Strebel in 1980.
Comment:
Comment:
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::974636659570be3b7a8ea91e3e5670d1
We describe various classes of infinitely presented groups that are condensation points in the space of marked groups. A well-known class of such groups consists of finitely generated groups admitting an infinite minimal presentation. We introduce he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04578c465d898dff686cf8077b04aba6
http://arxiv.org/abs/1010.0271
http://arxiv.org/abs/1010.0271
Autor:
R. M�der, P. Hagedorn, M. Hegland, Petra Boxler, M. v. Renteln, Michael Renardy, Ralph Strebel, J. Sch�nenberger-Deuel, Lorenz Schumann
Publikováno v:
ZAMP Zeitschrift f�r angewandte Mathematik und Physik. 42:155-158
Externí odkaz:
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https://doi.org/10.1007/bf00962066
https://doi.org/10.1007/bf00962066
Autor:
Ralph Strebel
Die Geometrische Kristallographie hat zum Ziel, die raumliche Verteilung der Atome, Ionen oder Molekule eines Kristalls nach ihren Symmetrien zu klassifizieren. Um die Klassifikation eindeutig zu machen, muss man festlegen, welche raumlichen Verteilu
Externí odkaz:
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