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20 papers · 1 filter
Free quasi-symmetric functions, product actions and quantum field theory of partitions
Gerard Henry Edmond Duchamp, Jean-Gabriel Luque, Karol A. Penson +1
We examine two associative products over the ring of symmetric functions related to the intransitive and Cartesian products of permutation groups. As an application, we give an enu…
Rank one and mixing differentiable flows
Bassam Fayad
We construct, over some minimal translations of the two torus, special flows under a differentiable ceiling function that combine the properties of mixing and rank one.
Resolvents of self-adjoint extensions with mixed boundary conditions
Konstantin Pankrashkin
We prove a variant of Krein's resolvent formula expressing the resolvents of self-adjoint extensions through the associated boundary conditions. Applications to solvable quantum-me…
Modules and Logic Programming
Christophe Fouquere, Virgile Mogbil
We study conditions for a concurrent construction of proof-nets in the framework developed by Andreoli in recent papers. We define specific correctness criteria for that purpose. W…
Why Delannoy numbers?
Cyril Banderier, Sylviane Schwer
This article is not a research paper, but a little note on the history of combinatorics: We present here a tentative short biography of Henri Delannoy, and a survey of his most not…
Continuity properties of integral kernels associated with Schroedinger operators on manifolds
Jochen Bruening, Vladimir Geyler, Konstantin Pankrashkin
For Schroedinger operators (including those with magnetic fields) with singular (locally integrable) scalar potentials on manifolds of bounded geometry, we study continuity propert…