Results 31 to 40 of about 77,930 (235)
On non-Kupka points of codimension one foliations on ℙ3
Anais da Academia Brasileira de CiênciasWe study the singular set of a codimension one holomorphic foliation on ℙ 3 . We find a local normal form for these foliations near a codimension two component of the singular set that is not of Kupka type.
OMEGAR CALVO-ANDRADE +2 more
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Self-gravitating branes of codimension 4 in Lovelock gravity
, 2008 We construct a familly of exact solutions of Lovelock equations describing codimension four branes with discrete symmetry in the transverse space. Unlike what is known from pure Einstein gravity, where such brane solutions of higher codimension are ...
C. Charmousis +23 more
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Elliptic quantum curves of 6d SO(N) theories
Journal of High Energy Physics, 2022 We discuss supersymmetric defects in 6d N $$ \mathcal{N} $$ = (1, 0) SCFTs with SO(N c ) gauge group and N c − 8 fundamental flavors. The codimension 2 and 4 defects are engineered by coupling the 6d gauge fields to charged free fields in four and two ...
Jin Chen +5 more
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, 2014 A wide variety of intricate dynamics may be created at border-collision bifurcations of piecewise-smooth maps, where a fixed point collides with a surface at which the map is nonsmooth.
Simpson, David J. W.
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Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons
Communications on Pure and Applied Mathematics, EarlyView.Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley +1 more source
Codimension one spheres which are null homotopic
, 1998 This paper classifies embedded, codimension-one spheres which are null homotopic. This information is used to show that all null homotopic, immersed codimension-one spheres which are taut in the sense of Terng and Thorbergsson are actually distance ...
Taylor, Laurence R.
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Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality
Mathematische Nachrichten, EarlyView.Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley +1 more source
Decompositions into Codimension-Two Manifolds [PDF]
Transactions of the American Mathematical Society, 1985 Let M M denote an orientable ( n + 2 ) (n + 2) -manifold and let G G denote an upper semicontinuous decomposition of M M into continua having the shape of closed, orientable n n -manifolds.
Daverman, Robert J., Walsh, J. J.
openaire +2 more sources
On computing local monodromy and the numerical local irreducible decomposition
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract Similarly to the global case, the local structure of a holomorphic subvariety at a given point is described by its local irreducible decomposition. Geometrically, the key requirement for obtaining a local irreducible decomposition is to compute the local monodromy action of a generic linear projection at the given point, which is always well ...
Parker B. Edwards +1 more
wiley +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
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