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Volume 13 (2021)
no. 2
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Table of contents
Principal angles between random subspaces and polynomials in two free projections
Guillaume Aubrun
p. 3-10
Enveloping algebras of pre-Lie algebras of rooted trees
Mohamed Belhaj Mohamed
p. 11-28
Combinatorial
k
-systoles on a punctured torus and a pair of pants
ElHadji Abdou Aziz Diop
;
Masseye Gaye
;
Abdoul Karim Sane
p. 29-38
Length derivative of the generating function of walks confined in the quarter plane
Thomas Dreyfus
;
Charlotte Hardouin
p. 39-92
Contramodules
Leonid Positselski
p. 93-182