Question d'examen à l'École navale
Sur l'homologie et le spectre des variétés hyperboliques
Propriétés de Lefschetz dans la cohomologie de certaines variétés arithmétiques : le cas des surfaces modulaires de Hilbert
A unified approach to control problems in discrete event processes
Counting Young tableaux of bounded height.
rc-graphs and Schubert polynomials.
Invariant and coinvariant spaces for the algebra of symmetric polynomials in non-commuting variables.
Tensorial square of the hyperoctahedral group coinvariant space.
Decomposition of the diagonal action of on the coinvariant space of .
Computing the generating function of a series given its first few terms.
Hyperoctahedral species.
Exponents in Archimedean Arthur packets
Generalizing the proof – by Hecht and Schmid – of Osborne’s conjecture we prove an Archimedean (and weaker) version of a theorem of Colette Moeglin. The result we obtain is a precise Archimedean version of the general principle – stated by the second author – according to which
Diagonal Temperley-Lieb invariants and harmonics.
Efficient computation of addition chains
The aim of this paper is to present a unifying approach to the computation of short addition chains. Our method is based upon continued fraction expansions. Most of the popular methods for the generation of addition chains, such as the binary method, the factor method, etc..., fit in our framework. However, we present new and better algorithms. We give a general upper bound for the complexity of continued fraction methods, as a function of a chosen strategy, thus the total number of operations required...
Grothendieck bialgebras, partition lattices, and symmetric functions in noncommutative variables.
Isometry classes of generalized associahedra.
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