Results 11 to 20 of about 58 (47)

Graded Linearity of Stanley–Reisner Ring of Broken Circuit Complexes

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
This paper introduces two new notions of graded linear resolution and graded linear quotients, which generalize the concepts of linear resolution property and linear quotient for modules over the polynomial ring A = k[x1, …, xn]. Besides, we compare graded linearity with componentwise linearity in general.
Mohammad Reza-Rahmati   +2 more
wiley   +1 more source

Supersolvable simplicial arrangements [PDF]

open access: yesAdvances in Applied Mathematics, 2019
Simplicial arrangements are classical objects in discrete geometry. Their classification remains an open problem but there is a list conjectured to be complete at least for rank three. A further important class in the theory of hyperplane arrangements with particularly nice geometric, algebraic, topological, and combinatorial properties are the ...
Michael Cuntz, Paul Mücksch
openaire   +2 more sources

The freeness of Ish arrangements [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
The Ish arrangement was introduced by Armstrong to give a new interpretation of the $q; t$-Catalan numbers of Garsia and Haiman. Armstrong and Rhoades showed that there are some striking similarities between the Shi arrangement and the Ish arrangement ...
Takuro Abe   +2 more
doaj   +1 more source

Real and complex supersolvable line arrangements in the projective plane [PDF]

open access: yesJournal of Algebraic Combinatorics, 2020
17 pages; comments ...
Hanumanthu, Krishna, Harbourne, Brian
openaire   +3 more sources

The Active Bijection between Regions and Simplices in Supersolvable Arrangements of Hyperplanes [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2006
Comparing two expressions of the Tutte polynomial of an ordered oriented matroid yields a remarkable numerical relation between the numbers of reorientations and bases with given activities. A natural activity preserving reorientation-to-basis mapping compatible with this relation is described in a series of papers by the present authors.
Gioan, Emeric, Las Vergnas, Michel
openaire   +3 more sources

THE BROKEN CIRCUIT COMPLEX AND THE HYPERSOLVABLE PARTITION COMPLEX

open access: yesمجلة علوم ذي قار, 2019
In this paper we construct the broken circuit complex of a hypersolvable r -arrangement ? by using the hypersolvable partition analogue and the hypersolvable ordering which respects the hypersolvable structure .We used the minimal informations that ...
Hana ' M .Ali, Abid Ali Al-Ta'ai
doaj   +4 more sources

Simple Geometric Characterization of Supersolvable Arrangements

open access: yesRocky Mountain Journal of Mathematics, 2001
An arrangement of hyperplanes is a finite collection of \(\mathbb{C}\)-linear subspaces of dimension \(d-1\) in \(\mathbb{C}^d.\) Let \(A\) be an arrangement in \(\mathbb{C}^3\) and \(A^*\) be the natural projective arrangements in \(\mathbb{C}\mathbb{P}^2\) associated to it.
Jiang, Tan   +2 more
openaire   +2 more sources

Free arrangements of hyperplanes and supersolvable lattices

open access: yesAdvances in Mathematics, 1984
The authors investigate the relation between two different concepts that come up with an arrangement A of hyperplanes through the origin in \({\mathbb{C}}^{\ell +1}\). On one hand, A is said to be free if the corresponding module of logarithmic vector fields is a free module.
Jambu, Michel, Terao, Hiroaki
openaire   +1 more source

On supersolvable reflection arrangements

open access: yes, 2012
13 pages, updated references, to appear in Proc. Amer. Math. Soc. v3.
Hoge, Torsten, Roehrle, Gerhard
openaire   +2 more sources

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