Results 31 to 40 of about 123,228 (271)

Analytic residues along algebraic cycles

open access: yesJournal of Complexity, 2005
We present a restricted version of some affine Jacobi's residue formula (on an affine algebraic variety) with applications to higher dimensional (and affine) analogues of Wood's (or Reiss's) relations about the interpolation of pieces of analytic manifolds.
Berenstein, Carlos A.   +5 more
openaire   +4 more sources

Monodromy of an Inhomogeneous Picard-Fuchs Equation

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
The global behaviour of the normal function associated with van Geemen's family of lines on the mirror quintic is studied. Based on the associated inhomogeneous Picard-Fuchs equation, the series expansions around large complex structure, conifold, and ...
Guillaume Laporte, Johannes Walcher
doaj   +1 more source

A remark on Beauville's splitting property

open access: yes, 2017
Let $X$ be a hyperk\"ahler variety. Beauville has conjectured that a certain subring of the Chow ring of $X$ should inject into cohomology. This note proposes a similar conjecture for the ring of algebraic cycles on $X$ modulo algebraic equivalence: a ...
Laterveer, Robert
core   +1 more source

A class of nonlinear oscillators with non-autonomous first integrals and algebraic limit cycles

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we present a class of autonomous nonlinear oscillators with non-autonomous first integral. We prove explicitly the existence of a global sink which is, under some conditions, an algebraic limit cycle.
Meryem Belattar   +3 more
doaj   +1 more source

Algebraic cycles on a very special EPW sextic

open access: yes, 2017
Motivated by the Beauville-Voisin conjecture about Chow rings of powers of $K3$ surfaces, we consider a similar conjecture for Chow rings of powers of EPW sextics. We prove part of this conjecture for the very special EPW sextic studied by Donten-Bury et
Laterveer, Robert
core   +1 more source

Cycle-finite algebras

open access: yesJournal of Pure and Applied Algebra, 1995
Let \(A\) be a finite dimensional algebra over an algebraically closed field, and \(\text{mod }A\) denote the category of its finitely generated right modules. Then \(A\) is said to be cycle-finite if, for every sequence \(M_0 @>f_1>> M_1 @>f_2>> M_2\to\dots @>f_n>> M_n=M_0\) of non-zero non-isomorphisms between indecomposable objects in \(\text{mod }A\
openaire   +2 more sources

Hybrid V-Cycle Algebraic Multilevel Preconditioners [PDF]

open access: yesMathematics of Computation, 1992
The paper describes a new algebraically defined multilevel preconditioner for the finite element matrix arising from the discretization of a second-order selfadjoint elliptic boundary value problem. The construction of the preconditioner is based on a sequence of grids (levels) given by successive refinement and the corresponding hierarchical two-by ...
openaire   +1 more source

On minimum algebraic connectivity of graphs whose complements are bicyclic

open access: yesOpen Mathematics, 2019
The second smallest eigenvalue of the Laplacian matrix of a graph (network) is called its algebraic connectivity which is used to diagnose Alzheimer’s disease, distinguish the group differences, measure the robustness, construct multiplex model ...
Liu Jia-Bao   +3 more
doaj   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

Smoothness in Binomial Edge Ideals

open access: yesMathematics, 2016
In this paper we study some geometric properties of the algebraic set associated to the binomial edge ideal of a graph. We study the singularity and smoothness of the algebraic set associated to the binomial edge ideal of a graph. Some of these algebraic
Hamid Damadi, Farhad Rahmati
doaj   +1 more source

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