Matroid rank functions and discrete concavity
β Scribed by Shioura, Akiyoshi
- Book ID
- 118301896
- Publisher
- Japan Society for Industrial and Applied Mathematics
- Year
- 2012
- Tongue
- English
- Weight
- 190 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0916-7005
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Recently, Goodman et al. [9,10] have proven two conjectures by GrΓΌnbaum right, showing that any arrangement of pseudolines in the plane can be embedded into a flat projective plane and that there exists a universal topological projective plane in which every arrangement of pseudolines is stretchable
The minimum cut problem is a well-solved special case of submodular function minimization. We show that it is in fact equivalent to minimizing a modular function over a ring family. Onehalf of this equivalence follows from classical work of Rhys and Picard. We give a number of applications to testin