On induced subgraphs with odd degrees
The author proves that every graph \(G\) on \(n\) vertices with no isolated vertices contains an induced subgraph \(H\) such that every vertex in \(H\) has odd degree in \(H\) and \(| V(H) | \geq (1-o(1))\sqrt {n/6}\).
scientific article; zbMATH DE number 681654