Results 1 to 10 of about 1,232 (194)

k-Adjoint of hyperplane arrangements

open access: yesJournal of Combinatorial Theory, Series A
In this paper, we introduce the $k$-adjoint of a given hyperplane arrangement $\mathcal{A}$ associated with rank-$k$ elements in the intersection lattice $L(\mathcal{A})$, which generalizes the classical adjoint proposed by Bixby and Coullard. The $k$-adjoint of $\mathcal{A}$ induces a decomposition of the Grassmannian, which we call the $\mathcal{A ...
Weikang Liang   +2 more
openaire   +2 more sources

On free and plus-one generated curves arising from free curves by addition–deletion of a line

open access: yesBulletin of Mathematical Sciences
In a recent paper, after introducing the notion of plus-one generated hyperplane arrangements, Takuro Abe has shown that if we add (respectively, delete) a line to (respectively, from) a free line arrangement, then the resulting line arrangement is ...
Alexandru Dimca
doaj   +1 more source

Jumping Numbers of Hyperplane Arrangements [PDF]

open access: yesCommunications in Algebra, 2010
M. Saito recently proved that the jumping numbers of a hyperplane arrangement depend only on the combinatorics of the arrangement. However, a formula in terms of the combinatorial data was still missing. In this note, we give a formula and a different proof of the fact that the jumping numbers of a hyperplane arrangement depend only on the ...
openaire   +2 more sources

The face lattice of hyperplane arrangements

open access: yesDiscrete Mathematics, 1988
A finite set \({\mathcal H}\) of hyperplanes in \({\mathbb{R}}^ d\) is called an arrangement. It determines a partition of \({\mathbb{R}}^ d\) into open topological cells, the face lattice \(L({\mathcal H})\) of which is studied by the author. He shows \(L({\mathcal H})\) to be shellable. To \({\mathcal H}\) there is assigned a zonotope \(\tilde Z\) in
openaire   +2 more sources

Electrical networks and hyperplane arrangements

open access: yesAdvances in Applied Mathematics, 2019
This paper studies \emph{Dirichlet arrangements}, a generalization of graphic hyperplane arrangements arising from electrical networks and order polytopes of finite posets. We generalize descriptions of combinatorial features of graphic arrangements to Dirichlet arrangements, including characteristic polynomials and supersolvability.
openaire   +4 more sources

The characteristic quasi-polynomials of hyperplane arrangements over residually finite Dedekind domains [PDF]

open access: yesEnumerative Combinatorics and Applications, 2023
Masamichi Kuroda, Shuhei Tsujie
doaj  

Hyperplane arrangements: computations and conjectures

open access: yesAdvanced Studies in Pure Mathematics, 2019
This paper provides an overview of selected results and open problems in the theory of hyperplane arrangements, with an emphasis on computations and examples. We give an introduction to many of the essential tools used in the area, such as Koszul and Lie algebra methods, homological techniques, and the Bernstein-Gelfand-Gelfand correspondence, all ...
openaire   +3 more sources

Logarithmic Discriminants of Hyperplane Arrangements

open access: yesLe Matematiche
20 pages, comments welcome!
L. Kayser, A. Kretschmer, S. Telen
openaire   +3 more sources

Point Location in Arrangements of Hyperplanes

open access: yesInformation and Computation, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

A Breast Cancer Image Classification Algorithm with 2c Multiclass Support Vector Machine. [PDF]

open access: yesJ Healthc Eng, 2023
Wajeed MA   +6 more
europepmc   +1 more source

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