Results 41 to 50 of about 169,397,941 (109)

Exponential actions defined by vector configurations, Gale duality, and moment‐angle manifolds

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 9, Page 2571-2629, September 2025.
Abstract Exponential actions defined by vector configurations provide a universal framework for several constructions of holomorphic dynamics, non‐Kähler complex geometry, toric geometry and topology. These include leaf spaces of holomorphic foliations, intersections of real and Hermitian quadrics, the quotient construction of simplicial toric ...
Taras Panov
wiley   +1 more source

Vanishing results for the cohomology of complex toric hyperplane complements [PDF]

open access: yes
Suppose R is the complement of an essential arrangement of toric hyperlanes in the complex torus and ? = ?1(R). We show that H*(R;A) vanishes except in the top degree n when A is one of the following systems of local coefficients: (a) a system of ...
Simona Settepanella, Mike W. Davis
core  

Free paths of arrangements of hyperplanes

open access: yes, 2023
We study the free path problem, i.e., if we are given two free arrangements of hyperplanes, then we can connect them by free arrangements or not. We prove that if an arrangement $\mathcal{A}$ and $\mathcal{A} \setminus \{H,L\}$ are free, then at least ...
Yamaguchi, Toru, Abe, Takuro
core  

Geometric realizations of the s‐weak order and its lattice quotients

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 3, September 2025.
Abstract For an n$n$‐tuple s${\bm{s}}$ of nonnegative integers, the s${\bm{s}}$‐weak order is a lattice structure on s${\bm{s}}$‐trees, generalizing the weak order on permutations. We first describe the join irreducible elements, the canonical join representations, and the forcing order of the s${\bm{s}}$‐weak order in terms of combinatorial objects ...
Eva Philippe, Vincent Pilaud
wiley   +1 more source

Classification with support hyperplanes [PDF]

open access: yes
A new classification method is proposed, called Support Hy-perplanes (SHs). To solve the binary classification task, SHs consider theset of all hyperplanes that do not make classification mistakes, referredto as semi-consistent hyperplanes. A test object
Groenen, P.J.F.   +2 more
core  

Intergovernmental relations in Scotland post-devolution [PDF]

open access: yes, 2002
Central-local relations in Scotland pre-devolution were different to a degree, but the overall substance and rationale behind them tended to be very similar to those in England. This article outlines post-devolution developments in Scotland.
McGarvey, Neil
core   +3 more sources

Algebras related to posets of hyperplanes [PDF]

open access: yes, 2000
We compare two noncommutative algebras which are related to arrangements of hyperplanes. For three special arrangements the induced approximately finite dimensional C*-algebra and the graded Orlik-Solomon-algebra are ...
Jeurnink, G.A.M.
core   +2 more sources

Generalization of navigation memory in honeybees. [PDF]

open access: yesFront Behav Neurosci, 2023
Bullinger E, Greggers U, Menzel R.
europepmc   +1 more source

The Multi-Cover Persistence of Euclidean Balls. [PDF]

open access: yesDiscrete Comput Geom, 2021
Edelsbrunner H, Osang G.
europepmc   +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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