Results 41 to 50 of about 34,334 (114)

Entropy theory for sofic groupoids I: the foundations [PDF]

open access: yes, 2013
This is the first part in a series in which sofic entropy theory is generalized to class-bijective extensions of sofic groupoids. Here we define topological and measure entropy and prove invariance.
Bowen, Lewis
core  

Baire class one colorings and a dichotomy for countable unions of $F_\sigma$ rectangles

open access: yes, 2010
We study the Baire class one countable colorings, i.e., the countable partitions into $F_\sigma$ sets. Such a partition gives a covering of the diagonal into countably many $F_\sigma$ squares.
Lecomte, Dominique
core  

A generalization of Steinberg theory and an exotic moment map

open access: yes, 2020
For a reductive group $G$, Steinberg established a map from the Weyl group to the set of nilpotent $G$-orbits by using moment maps on double flag varieties. In particular, in the case of the general linear group, it provides a geometric interpretation of
Fresse, Lucas, Nishiyama, Kyo
core  

Measure rigidity for leafwise weakly rigid actions

open access: yes, 2019
In this paper, given a Borel action $G\curvearrowright X$, we introduce a new approach to obtain classification of conditional measures along a $G$-invariant foliation along which $G$ has a controlled behavior. Given a Borel action $G\curvearrowright X$
Ponce, Gabriel, Varão, Régis
core  

On Rényi Permutation Entropy. [PDF]

open access: yesEntropy (Basel), 2021
Gutjahr T, Keller K.
europepmc   +1 more source

On some invariants of cubic fourfolds. [PDF]

open access: yesEur J Math, 2023
Gounelas F, Kouvidakis A.
europepmc   +1 more source

Prime numbers in typical continued fraction expansions. [PDF]

open access: yesBoll Unione Mat Ital (2008), 2023
Schindler TI, Zweimüller R.
europepmc   +1 more source

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