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quant-ph2005★ 10 cited
Algebras of Measurements: the logical structure of Quantum Mechanics
Daniel Lehmann, Kurt Engesser, Dov M. Gabbay
In Quantum Physics, a measurement is represented by a projection on some closed subspace of a Hilbert space. We study algebras of operators that abstract from the algebra of projec…
math.AG2005★ 4 cited
Lefschetz-Verdier trace formula and a generalization of a theorem of Fujiwara
Yakov Varshavsky
The goal of this paper is to generalize a theorem of Fujiwara (formerly Deligne's conjecture) to the situation appearing in a joint work [KV] with David Kazhdan on the global Langl…
math.GR2005
Countable Primitive Groups
Tsachik Gelander, Yair Glasner
We give a complete characterization of countable primitive groups in several settings including linear groups, subgroups of mapping class groups, groups acting minimally on trees a…