Results 1 to 10 of about 15,485 (101)

Closedness of star products and cohomologies [PDF]

, 1994
We first review the introduction of star products in connection with deformations of Poisson brackets and the various cohomologies that are related to them.
A Connes, A Connes, A Connes, A Connes, A Connes, A Groenewold, A Lichnerowicz, A Lichnerowicz, A Lichnerowicz, A. Connes, B Fedosov, B Fedosov, B Kostant, B Kostant, B Tsygan, D Arnal, D Arnal, D Arnal, D Arnal, D Sternheimer, F Berezin, F Trèves, G Hochschild, G Pinczon, H Omori, H Omori, H Weyl, IE Segal, J Dito, J Dito, J Dito, J Schwinger, J. Vey, JD Geom, JE Moyal, JM Souriau, L Takhtajan, M Cahen, M Flato, M Flato, M Flato, M Flato, M Flato, M Gerstenhaber, M Jimbo, M Wilde De, O Mathieu, P Bonneau, P Bonneau, P Bonneau, PAM Dirac, PP Kulish, S Gutt, S Gutt, S Gutt, SL Woronowicz, VG Drinfeld   +56 more
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Topological properties of punctual Hilbert schemes of almost-complex fourfolds (I) [PDF]

, 2009
In this article, we study topological properties of Voisin's punctual Hilbert schemes of an almost-complex fourfold $X$. In this setting, we compute their Betti numbers and construct Nakajima operators. We also define tautological bundles associated with
A. Beauville, A. Dimca, A.S. Tikhomirov, C. Voisin, G. Danila, G. Ellingsrud, G. Ellingsrud, H. Nakajima, I. Grojnowski, J. Briançon, J. Fogarty, Julien Grivaux, L. Göttsche, L. Göttsche, M. Goresky, M. Lehn   +15 more
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A geometry of information, I: Nerves, posets and differential forms [PDF]

, 2005
The main theme of this workshop (Dagstuhl seminar 04351) is `Spatial Representation: Continuous vs. Discrete'. Spatial representation has two contrasting but interacting aspects (i) representation of spaces' and (ii) representation by spaces.
Gratus, Jonathan, Porter, Timothy
core   +5 more sources

Algebraic Topology [PDF]

, 2013
The chapter provides an introduction to the basic concepts of Algebraic Topology with an emphasis on motivation from applications in the physical sciences.
Robins, Vanessa
core   +1 more source

Etale homotopy types of moduli stacks of algebraic curves with symmetries [PDF]

, 2003
Using the machinery of etale homotopy theory a' la Artin-Mazur we determine the etale homotopy types of moduli stacks over $\bar{\Q}$ parametrizing families of algebraic curves of genus g greater than 1 endowed with an action of a finite group G of ...
Frediani, Paola, Neumann, Frank
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Periodic perturbations of constrained motion problems on a class of implicitly defined manifolds [PDF]

, 2014
We study forced oscillations on differentiable manifolds which are globally defined as the zero set of appropriate smooth maps in some Euclidean spaces.
Calamai, Alessandro, Spadini, Marco
core   +3 more sources

Overview of (pro-)Lie group structures on Hopf algebra character groups

, 2017
Character groups of Hopf algebras appear in a variety of mathematical and physical contexts. To name just a few, they arise in non-commutative geometry, renormalisation of quantum field theory, and numerical analysis.
A Connes, A Murua, A Murua, A Murua, Andreas Kriegl, C Brouder, Dominique Manchon, E Hairer, Fernando Casas, G Bogfjellmo, G Bogfjellmo, H Alzaareer, H Glöckner, H Glöckner, H Glöckner, H Glöckner, H Yamabe, Hans Heinrich Keller, Helge Glöckner, Helge Glöckner, Helmut H. Schaefer, HZ Munthe-Kaas, HZ Munthe-Kaas, JC Butcher, JC Butcher, JW Milnor, K Ebrahimi-Fard, K Ebrahimi-Fard, K Ebrahimi-Fard, K Floret, K-H Neeb, Karl-Goswin Grosse-Erdmann, KH Hofmann, KH Hofmann, P Chartier, P Chartier, P Chartier, R Arens, R Dahmen, R Dahmen, Richard S. Hamilton, S Majid, W Bertram, Walter Michaelis, WD Suijlekom van, WD Suijlekom van, William C. Waterhouse, WS Gray   +47 more
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Algebraic Structure of Classical Field Theory: Kinematics and Linearized Dynamics for Real Scalar Fields

, 2019
We describe the elements of a novel structural approach to classical field theory, inspired by recent developments in perturbative algebraic quantum field theory.
Brunetti, Romeo, Fredenhagen, Klaus, Ribeiro, Pedro Lauridsen   +2 more
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Field-Theoretic Weyl Deformation Quantization of Enlarged Poisson Algebras [PDF]

, 2008
$C^*$-algebraic Weyl quantization is extended by allowing also degenerate pre-symplectic forms for the Weyl relations with infinitely many degrees of freedom, and by starting out from enlarged classical Poisson algebras.
Honegger, Reinhard, Rieckers, Alfred, Schlafer, Lothar   +2 more
core   +6 more sources

A Note on the Topology of Space-time in Special Relativity [PDF]

, 2003
We show that a topology can be defined in the four dimensional space-time of special relativity so as to obtain a topological semigroup for time. The Minkowski 4-vector character of space-time elements as well as the key properties of special relativity ...
Bohm A, Bohm A, Castagnino M, Gadella M, Gell-Mann M, S Wickramasekara   +5 more
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