Volume 28 (2021) no. 2

Table of contents

Hardy–Littlewood–Sobolev Inequality for Upper Half Space
p. 117-140
The RFD and Kac quotients of the Hopf * -algebras of universal orthogonal quantum groups
p. 141-155
Stochastic extensions of symbols in Wiener spaces and heat operator
p. 157-198
Combinatoire des sous-groupes de congruence du groupe modulaire II
[Combinatorics of congruence subgroups of the modular group II]
p. 199-229
On a general variational framework for existence and uniqueness in Differential Equations
p. 231-256