Results 51 to 60 of about 75,949 (236)
Rational normal curves in weighted projective space
Bulletin of the London Mathematical Society, EarlyView.Abstract This article aims to extend classical homological results about the rational normal curves to analogues in weighted projective spaces. Results include determinantality and nonstandard versions of quadratic generation and the Koszul property.
Caitlin M. Davis, Aleksandra Sobieska
wiley +1 more source
Foliations with few non-compact leaves
, 2002 Let F be a foliation of codimension 2 on a compact manifold with at least one non-compact leaf. We show that then F must contain uncountably many non-compact leaves.
Elmar Vogt +8 more
core +1 more source
The weak Lefschetz property for artinian Gorenstein algebras
Bulletin of the London Mathematical Society, EarlyView.Abstract It is an extremely elusive problem to determine which standard artinian graded K$K$‐algebras satisfy the weak Lefschetz property (WLP). Codimension 2 artinian Gorenstein graded K$K$‐algebras have the WLP and it is open to what extent such result might work for codimension 3 artinian Gorenstein graded K$K$‐algebras.
Rosa M. Miró‐Roig
wiley +1 more source
Discrete Dynamics in Nature and Society, 2015 This paper investigates the codimension-two grazing bifurcations of a three-degree-of-freedom vibroimpact system with symmetrical rigid stops since little research can be found on this important issue.
Qunhong Li, Pu Chen, Jieqiong Xu
doaj +1 more source
Lehmann-Suwa residues of codimension one holomorphic foliations and applications
, 2019 Let $\mathcal{F}$ be a singular codimension one holomorphic foliation on a compact complex manifold $X$ of dimension at least three such that its singular set has codimension at least two. In this paper, we determine Lehmann-Suwa residues of $\mathcal{F}$
Fernández-Pérez, Arturo +1 more
core +1 more source
Property (T) for groups acting on affine buildings
Bulletin of the London Mathematical Society, EarlyView.Abstract We prove that a group acting geometrically on a thick affine building has property (T). A more general criterion for property (T) is given for groups acting on partite complexes.
Izhar Oppenheim
wiley +1 more source
Motivic p$p$‐adic tame cohomology
Bulletin of the London Mathematical Society, EarlyView.Abstract We construct a comparison functor between (A1$\mathbf {A}^1$‐local) tame motives and (□¯${\overline{\square }}$‐local) log‐étale motives over a field k$k$ of positive characteristic. This generalizes Binda–Park–Østvær's comparison for the Nisnevich topology.
Alberto Merici
wiley +1 more source
Codimension one and codimension two bifurcations analysis of discrete mussel-algae model
AIMS MathematicsIn this paper, a continuous mussel-algae model was discretized using the explicit Euler method, yielding a discrete mussel-algae interaction model. Within this work, the stability and bifurcations of a discrete mussel-algae model were studied. First, the
Qingkai Xu, Chunrui Zhang, Xingjian Wang
doaj +1 more source
Nowhere minimal CR submanifolds and Levi-flat hypersurfaces
, 2007 A local uniqueness property of holomorphic functions on real-analytic nowhere minimal CR submanifolds of higher codimension is investigated. A sufficient condition called almost minimality is given and studied.
D. Burns +10 more
core +3 more sources
Maximal symplectic torus actions
Bulletin of the London Mathematical Society, EarlyView.Abstract There are several different notions of maximal torus actions on smooth manifolds, in various contexts: symplectic, Riemannian, complex. In the symplectic context, for the so‐called isotropy‐maximal actions, as well as for the weaker notion of almost isotropy‐maximal actions, we give classifications up to equivariant symplectomorphism.
Rei Henigman
wiley +1 more source