Objective
Three major and interrelated subjects are in the background of the meetings: Poisson brackets were introduced to study the 3-body problem in celestial mechanics. Their study gained renewed interest in the second half of the twentieth century and Poisson geometry is now an active field of research, stimulated by its connections with harmonic analysis on Lie groups, quantum physics (in particular deformation quantisation), holonomy and integrated systems.
The passage from one level of physical theory to another can often be achieved using the mathematical notion of deformation, in a properly chosen category. Application of this idea to the passage from classical to quantum mechanics lead Flato, Lichnerowicz and Sternheimer in 1976 to create a new domain called Deformation Quantisation.
Symmetries have played a major role in the developments of mathematics and physics in the 20th century and lead to the very wide subject of group representations.
Spectacular recent developments have occurred in the last years in those three areas and their interplay. For instance, let us mention the proofs of existence and classification for deformation quantisation on general Poisson manifolds, based on the formality theorem, given by Kontsevich in 1997 using graphs and by Tamarkin and him using operands in 1999, which gave rise to a wide array of new results and the extension to algebraic varieties; new geometric constructions of representations of non-compact reductive Lie groups with new character formulas by Kashiwara, Schmid and Vilonen; the development of groupoids and algebroids by Moerdijk, Weinstein and others as a formalism to express very general theories.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences quantum physics
- natural sciences physical sciences astronomy planetary sciences celestial mechanics
- natural sciences mathematics pure mathematics geometry
- natural sciences mathematics pure mathematics algebra algebraic geometry
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Coordinator
BRUXELLES
Belgium
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