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- Université de LorraineFR4 papers
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9 papers · 1 filter
On the failure of the Gorenstein property for Hecke algebras of prime weight
L. J. P. Kilford, Gabor Wiese
In this article we report on extensive calculations concerning the Gorenstein defect for Hecke algebras of spaces of modular forms of prime weight p at maximal ideals of residue ch…
A framework for compositional verification of security protocols
Suzana Andova, Cas Cremers, Kristian Gjosteen +3
Automatic security protocol analysis is currently feasible only for small protocols. Since larger protocols quite often are composed of many small protocols, compositional analysis…
Global Geometric Deformations of the Virasoro algebra, current and affine algebras by Krichever-Novikov type algebra
Alice Fialowski, Martin Schlichenmaier
In two earlier articles we constructed algebraic-geometric families of genus one (i.e. elliptic) Lie algebras of Krichever-Novikov type. The considered algebras are vector fields,…
Formal Poisson cohomology of twisted -matrix induced structures
Mourad Ammar, Norbert Poncin
Quadratic Poisson tensors of the Dufour-Haraki classification read as a sum of an -matrix induced structure twisted by a (small) compatible exact quadratic tensor. An appropriat…
Formal Deformations of Dirac Structures
Frank Keller, Stefan Waldmann
In this paper we set-up a general framework for a formal deformation theory of Dirac structures. We give a parameterization of formal deformations in terms of two-forms obeying a c…
Slices, slabs, and sections of the unit hypercube
Jean-Luc Marichal, Michael J. Mossinghoff
Using combinatorial methods, we derive several formulas for the volume of convex bodies obtained by intersecting a unit hypercube with a halfspace, or with a hyperplane of codimens…