Objective
Linear algebraic groups occur as automorphism groups of certain linear structures like Azumaya algebras, quadratic and hermitean forms, Algebras with involutions, Jordan and Lie algebras and similar.
Therefore the study of algebraic groups gives insight into these linear structures and vice versa. Algebraic groups are very well understood up to a classification and an understanding of the so-called anisotropic groups, which occur as automorphism groups of anisotropic linear structures. While groups which are not anisotropic have been studied in extenso during the last century, anisotropic groups and structures are in general not yet understood.
Classical tools to get information about such linear structures or about linear groups are very often of (co)homological nature.
It is the goal of this project to bring together experts of various fields of algebra (like algebraic groups, quadratic and hermitean forms, Brauer groups, Lie algebras and homology) in order to combine their joint expertise to develop methods which allow to classify these structures as well as of their automorphism groups and to get to a better understanding of them.
It is intended to do research in the generic theory of quadratic an hermitean forms, of their associated automorphism groups, in particular, for certain classes of such groups it is intended to give a description in terms of Galois cohomology (e.g. in the sense of a complete system of invariants). Moreover, the splitting behaviour of Brauer groups under certain special circumstances will be studied in order to get further information about anisotropic phenomena.
Classical anisotropy invariants like the u-invariant will be studied for general fields. There is a subproject on cohomology of right symmetric algebras: An extension theory of Leibniz algebras will be developed, polynomial identities for Witt algebras, and Casimir operators will be studied. Also, topological Hochschild cohomology and MacLane cohomology together with relations to K-theory is investigated. Moreover, questions about motivic cohomology and K-theory of low dimensional fields, the Gersten conjecture in K-theory, Suslin's rigidity theorem and the Weyl transfer factor with applications to classical varieties will be investigated.
It is expected that the research in this project will bring fruitful results for all fields and disciplines involved, like linear algebraic groups, Azumaya algebras, quadratic forms, Brauer groups, Lie algebras and associated (co-) homology theories.
Fields of science (EuroSciVoc)
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding Scheme
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Coordinator
33501 Bielefeld
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.