JournalslemVol. 67, No. 3/4Volume 67, No. 3/4 (2021) L’Enseignement Mathématiquepp. 229–299The Harish-Chandra integral: An introduction with examplesColin McSwiggenpp. 301–330Relative geometric invariant theoryAlexander H. W. Schmittpp. 331–367Equivariant discretizations of diffusions, random walks, and harmonic functionsWerner BallmannPanagiotis Polymerakispp. 369–401Lattice equable quadrilaterals I: ParallelogramsChristian AebiGrant Cairnspp. 403–422Transformées de Fourier des fonctions d’invariance hyperbolique sur R2Laurent Clozelpp. 423–454On the integration of transitive Lie algebroidsEckhard Meinrenkenpp. 455–462Commission Internationale de l’Enseignement Mathématique. Once upon a time ... Historical vignettes from the Archives of ICMI: The origins of the ICMEsBernard R. Hodgson
pp. 331–367Equivariant discretizations of diffusions, random walks, and harmonic functionsWerner BallmannPanagiotis Polymerakis
pp. 455–462Commission Internationale de l’Enseignement Mathématique. Once upon a time ... Historical vignettes from the Archives of ICMI: The origins of the ICMEsBernard R. Hodgson