Submodular functions, matroids, and certain polyhedra. (English) Zbl 0268.05019

Combinat. Struct. Appl., Proc. Calgary internat. Conf. combinat. Struct. Appl., Calgary 1969, 69-87 (1970).


05B35 Combinatorial aspects of matroids and geometric lattices
05B05 Combinatorial aspects of block designs
05Cxx Graph theory
06B05 Structure theory of lattices
05Bxx Designs and configurations
90C05 Linear programming
05-02 Research exposition (monographs, survey articles) pertaining to combinatorics