Results 41 to 50 of about 366,411 (69)

Coprime actions with supersolvable fixed-point groups

open access: yes, 2018
Let A be an elementary abelian r-group acting on a finite r ′
Hangyang Meng, Xiuyun Guo
core   +1 more source

Lie algebras all of whose subalgebras are supersolvable

open access: yes, 1986
A Lie algebra L is said to be minimal non supersolvable if all its subalgebras, except L itself, are ...
Varea Agudo, Vicente Ramón   +1 more
core   +1 more source

Supersolvable saturated matroids and chordal graphs

open access: yes, 2023
A matroid is supersolvable if it has a maximal chain of flats each of which is modular. A matroid is saturated if every round flat is modular. In this article we present supersolvable saturated matroids as analogues to chordal graphs, and we show that ...
Probert, Andrew, Mayhew, Dillon
core  

Free Hyperplane Arrangements with Exponents 1, 2 and at Most One 3 Are Supersolvable: A Proof of a Conjecture of Tohăneanu

open access: yes
Ş. O. Tohăneanu conjectured (Oberwolfach Report 5/2021, p. 284; Conjecture 4.1 of the preprint arXiv:1707.07091v3) that every central free hyperplane arrangement over a field of characteristic zero whose exponents are 1's, 2's and at most one 3 is supersolvable. We prove this conjecture in every rank.
  +6 more sources

Koszulity, supersolvability and Stirling Representations

open access: yes
Supersolvable hyperplane arrangements and matroids are known to give rise to certain Koszul algebras, namely their Orlik–Solomon algebras and graded Varchenko–Gel’fand algebras. We explore how this interacts with group actions, particularly for the braid
Reiner, Victor   +2 more
core   +1 more source

Finite groups with supersolvable subgroup cofactors

open access: yes, 2008
Let in group О maximal subgroup cofactors be supersolvable. It is proved that non-Abelian composition factors are iso­ morphic to group PSL(2, p\ p - primes, p = ± 1 (mod 8). If group G is soluble then its nilpotent length does not exceed 3, p-length /ДО)
Евтухова, С. М.   +1 more
core   +2 more sources

On rational K[pi,1] spaces and Koszul algebras

open access: yes, 1997
this paper were first studied in the arrangement setting in [2, 20, 21, 22, 14, 13]. Falk [13] studied conditions for X to be a rational K[ß; 1]. He proved that X is a rational K[ß; 1] for every arrangement of so called fiber-type.
Stefan Papadima, Sergey Yuzvinsky
core  

On an explicit correspondence between nbc-basis, chambers and minimal complex for real supersolvable arrangements

open access: yesOn an explicit correspondence between nbc-basis, chambers and minimal complex for real supersolvable arrangements
In this paper we give a very natural description of the bijections between the set of cells in the minimal CW-complex homotopy equivalent to the complement of a complexified real supersolvable arrangement A, the nbc-basis of the Orlik-Solomon algebra associated to A and the set of chambers of A.
openaire   +1 more source

Supersolvable Reflection Arrangements [PDF]

open access: yesProceedings of the American Mathematical Society, 2014
Let A = ( A
Gerhard Röhrle, Torsten Hoge
exaly   +2 more sources

Supersolvable Restrictions of Reflection Arrangements

open access: yesJournal of Combinatorial Theory - Series A, 2014
16 pages; final version, to appear in Journal of Combinatorial Theory, Series ...
Gerhard Röhrle, Torsten Hoge
exaly   +5 more sources

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