Results 1 to 10 of about 1,474 (21)
Real submanifolds of maximum complex tangent space at a CR singular point [PDF]
, 2014 We study a germ of real analytic $n$-dimensional submanifold of ${\mathbf C}^n$ that has a complex tangent space of maximal dimension at a CR singularity. Under the condition that its complexification admits the maximum number of deck transformations, we
Gong, Xianghong, Stolovitch, Laurent
core +8 more sources
Path methods for strong shift equivalence of positive matrices [PDF]
, 2015 In the early 1990's, Kim and Roush developed path methods for establishing strong shift equivalence (SSE) of positive matrices over a dense subring U of the real numbers R.
Boyle, Mike, Kim, K. H., Roush, F. W.
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Spectral Curves, Opers and Integrable Systems [PDF]
, 2001 We establish a general link between integrable systems in algebraic geometry (expressed as Jacobian flows on spectral curves) and soliton equations (expressed as evolution equations on flat connections). Our main result is a natural isomorphism between a
Ben-Zvi, David, Frenkel, Edward
core +4 more sources
On representation varieties of Artin groups, projective arrangements and the fundamental groups of smooth complex algebraic varieties [PDF]
, 1997 We prove that for any affine variety S defined over Q there exist Shephard and Artin groups G such that a Zariski open subset U of S is biregular isomorphic to a Zariski open subset of the character variety Hom(G, PO(3))//PO(3). The subset U contains all
Kapovich, Michael, Millson, John
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On Kostant Sections and Topological Nilpotence [PDF]
, 2018 Let G denote a connected, quasi-split reductive group over a field F that is complete with respect to a discrete valuation and that has a perfect residue field.
Adler, Jeffrey D. +2 more
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The variety of reductions for a reductive symmetric pair
, 2010 We define and study the variety of reductions for a reductive symmetric pair (G,theta), which is the natural compactification of the set of the Cartan subspaces of the symmetric pair.
Grünewald, Michaël Le Barbier
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Dimension increase and splitting for Poincare'-Dulac normal forms
, 2005 Integration of nonlinear dynamical systems is usually seen as associated to a symmetry reduction, e.g. via momentum map. In Lax integrable systems, as pointed out by Kazhdan, Kostant and Sternberg in discussing the Calogero system, one proceeds in the ...
Gaeta, G., Walcher, S.
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The sigma orientation for analytic circle-equivariant elliptic cohomology
, 2002 We construct a canonical Thom isomorphism in Grojnowski's equivariant elliptic cohomology, for virtual T-oriented T-equivariant spin bundles with vanishing Borel-equivariant second Chern class, which is natural under pull-back of vector bundles and ...
Freed +9 more
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Automorphisms of multiplicity free Hamiltonian manifolds
, 2010 We compute the sheaf of automorphisms of a multiplicity free Hamiltonian manifold over its momentum polytope and show that its higher cohomology groups vanish.
Knop, Friedrich
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Open-closed field theories, string topology, and Hochschild homology
, 2009 In this expository paper we discuss a project regarding the string topology of a manifold, that was inspired by recent work of Moore-Segal, Costello, and Hopkins and Lurie, on "open-closed topological conformal field theories".
Blumberg, Andrew J. +2 more
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