Results 41 to 50 of about 243,999 (210)
W$W$‐algebras associated to surfaces
Proceedings of the London Mathematical Society, 2022 We define an integral form of the deformed W-algebra of type gl_r, and construct its action on the K-theory groups of moduli spaces of rank r stable sheaves on a smooth projective surface S, under certain assumptions. Our construction generalizes the action studied by Nakajima, Grojnowski and Baranovsky in cohomology, although the appearance of ...
openaire +2 more sources
Numerical Wave Simulation Using Geometrical VOF Method Based on OpenFOAM
Shanghai Jiaotong Daxue xuebao, 2021 Numerical wave simulation is a significant research topic. In this paper, the open source computational fluid dynamics (CFD) platform, OpenFOAM, is utilized to simulate Stokes fifth-order waves.
TIAN Kang +4 more
doaj +1 more source
Transcendental holomorphic maps between real algebraic manifolds in a complex space
, 2019 We give an example of a real algebraic manifold embedded in a complex space that does not satisfy the Nash-Artin approximation Property. This Nash-Artin approximation Property is closely related to the problem of determining when the biholomorphic ...
Rond, Guillaume
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The group of automorphisms of a real rational surface is n-transitive
, 2008 Let X be a rational nonsingular compact connected real algebraic surface. Denote by Aut(X) the group of real algebraic automorphisms of X. We show that the group Aut(X) acts n-transitively on X, for all natural integers n. As an application we give a new
Huisman, Johannes, Mangolte, Frédéric
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Links and analytic invariants of superisolated singularities
, 2004 By using superisolated surface singularities whose link is a rational homology sphere we give counterexamples to some of the most important conjetures concernig invariants of normal surface singularities.Comment: Revised version, to appear in Journal of ...
Luengo-Velasco, I. +2 more
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Engineering Applications of Computational Fluid Mechanics, 2020 Many important technical systems operate according to the principles of momentum transfer, heat transfer and mass transfer near the surface of a cylinder rotating in a confined space.
Ievgen Mochalin +3 more
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Welschinger invariants revisited
, 2017 We establish the enumerativity of (original and modified) Welschinger invariants for every real divisor on any real algebraic Del Pezzo surface and give an algebro-geometric proof of the invariance of that count both up to variation of the point ...
Itenberg, Ilia +2 more
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On the convex hull of a space curve [PDF]
, 2011 The boundary of the convex hull of a compact algebraic curve in real 3-space defines a real algebraic surface. For general curves, that boundary surface is reducible, consisting of tritangent planes and a scroll of stationary bisecants.
Ranestad, Kristian, Sturmfels, Bernd
core
Remark on complements on surfaces
Forum of Mathematics, Sigma, 2023 We give an explicit characterization on the singularities of exceptional pairs in any dimension. In particular, we show that any exceptional Fano surface is $\frac {1}{42}$ -lc.
Jihao Liu
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On the attempts to reduce parasitic viscous forces in the oil-air capillary bridge simulations [PDF]
EPJ Web of ConferencesSetting up a stable multiphase Volume of Fluid (VoF) numerical simulation to quantify capillary bridge forces acting on soil particles in the pendular regime presents significant computational challenges.
Manjunath Kushal +2 more
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