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pro vyhledávání: '"Christian J. Weigel"'
Publikováno v:
Communications in Algebra. 47:5261-5285
We translate the axioms of a Weyl groupoid with (not necessarily finite) root system in terms of arrangements. The result is a correspondence between Weyl groupoids permitting a root system and Tits arrangements satisfying an integrality condition wh
Publikováno v:
Rendiconti del Seminario Matematico della Università di Padova. 138:147-191
We introduce the notion of a Tits arrangement on a convex open cone as a special case of (infinite) simplicial arrangements. Such an object carries a simplicial structure similar to the geometric representation of Coxeter groups. The standard constru