Resumen de Groupoïdes riemanniens

Eduardo Gallego Gómez , L. Gualandri, Gilbert Hector , Agustí Reventós i Tarrida

• We propose a definition of a Riemannian groupoid, and we show that the Stefan foliation that it induces is a Riemannian (singular) foliation. We also prove that the homotopy groupoid of a Riemannian (regular) foliation is a Riemannian groupoid.