I am taking linear optimization class. Could you suggest me good fundamental textbook on advanced topics of network flows. To be more specific I am interested in: Multicommodity flow and multicut, the flow/cut gap theorem, algorithm CKR/FRT, concarent flow and sparse cut, embedding graph metrics into random trees.
Before stating network flows, I was using few great books on operations reseach and linear programming. But none of them covers such topics. Vanderbei's and Rader's book end up on max-flow min-cut theorem, Bazaraa's book goes further and covers multicommodity flows.