Abstract
The degree sequence optimization problem is to find a subgraph of a given graph which maximizes the sum of given functions evaluated at the subgraph degrees. Here we study this problem by replacing degree sequences, via suitable nonlinear transformations, by suitable degree enumerators, and we introduce suitable degree enumerator polytopes. We characterize their vertices, that is, the extremal degree enumerators, for complete graphs and some complete bipartite graphs, and use these characterizations to obtain simpler and faster algorithms for optimization over degree sequences for such graphs.
| Original language | English |
|---|---|
| Pages (from-to) | 107-115 |
| Number of pages | 9 |
| Journal | Discrete Applied Mathematics |
| Volume | 367 |
| DOIs | |
| State | Published - 31 May 2025 |
Keywords
- Combinatorial optimization
- Degree sequence
- Graph
- Polytope
ASJC Scopus subject areas
- Discrete Mathematics and Combinatorics
- Applied Mathematics