Mihailo Petrović Alas
He was a student of Henri Poincaré , Paul Painlevé , Charles Hermite and Émile Picard . 
<triplet> Henri Poincaré <subj> Charles Hermite <obj> student of <triplet> Paul Painlevé <subj> Émile Picard <obj> student of <triplet> Émile Picard <subj> Paul Painlevé <obj> student