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6 papers · 1 filter
Computing Kazhdan--Lusztig cells for unequal parameters
Meinolf Geck
Following Lusztig, we consider a Coxeter group together with a weight function . This gives rise to the pre-order relation and the corresponding partition of …
Another proof of Bailey's 6-psi-6 summation
Frederic Jouhet, Michael Schlosser
Adapting a method used by Cauchy, Bailey, Slater, and more recently, the second author, we give a new proof of Bailey's celebrated 6-psi-6 summation formula.
Topological quantization of boundary forces and the integrated density of states
Johannes Kellendonk
For quantum systems described by Schrödinger operators on the half-space $\RR^{d-1}\times\RR^{leq 0}$ the boundary force per unit area and unit energy is topologically quantised pr…
Deformations of modules of differential forms
B. Agrebaoui, M. Ben Ammar, N. Ben Fraj +1
We study non-trivial deformations of the natural action of the Lie algebra on the space of differential forms on . We calculate abstra…
Supersolvable LL-lattices of binary trees
Riccardo Biagioli, Frederic Chapoton
Some posets of binary leaf-labeled trees are shown to be supersolvable lattices and explicit EL-labelings are given. Their characteristic polynomials are computed, recovering their…
Projectively and conformally invariant star-products
C. Duval, A. M. El Gradechi, V. Ovsienko
We consider the Poisson algebra S(M) of smooth functions on T^*M which are fiberwise polynomial. In the case where M is locally projectively (resp. conformally) flat, we seek the s…