Results 101 to 110 of about 21,101 (195)

Rigidity phenomena and the statistical properties of group actions on $\text {CAT}(0)$ cube complexes

open access: yesForum of Mathematics, Sigma
We compare the marked length spectra of some pairs of proper and cocompact cubical actions of a nonvirtually cyclic group on $\mathrm {CAT}(0)$ cube complexes.
Stephen Cantrell, Eduardo Reyes
doaj   +1 more source

A topological proof of the modified Euler characteristic based on the orbifold concept. [PDF]

open access: yesActa Crystallogr A Found Adv, 2021
Naskręcki B, Dauter Z, Jaskolski M.
europepmc   +1 more source

M-theory, black holes and cosmology. [PDF]

open access: yesProc Math Phys Eng Sci, 2021
Kallosh R.
europepmc   +1 more source

Orthogonality relations for deep level Deligne–Lusztig schemes of Coxeter type

open access: yesForum of Mathematics, Sigma
In this paper, we prove some orthogonality relations for representations arising from deep level Deligne–Lusztig schemes of Coxeter type. This generalizes previous results of Lusztig [Lus04], and of Chan and the second author [CI21b].
Olivier Dudas, Alexander B. Ivanov
doaj   +1 more source

Root cycles in Coxeter groups

open access: yesJournal of Group Theory
Abstract For an element 𝑤 of a Coxeter group 𝑊, there are two important attributes, namely its length, and its expression as a product of disjoint cycles in its action on Φ, the root system of 𝑊. This paper investigates the interaction between these two features of 𝑤, introducing the notion of the crossing number of 𝑤,
Sarah Hart   +2 more
openaire   +1 more source

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