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LF-Covers and Binomial Edge Ideals of K\'{o}nig Type
- Publication Year :
- 2023
-
Abstract
- We give a combinatorial characterisation of connected graphs whose binomial edge ideals are of K\"{o}nig type, developed independently to the similar characterisation given by LaClair in arXiv:2304.13299, and exhibit some classes of graphs satisfying our criteria. For any connected Hamiltonian graph $G$ on $n$ vertices, we compute an explicit root of $H_{J(G)}^{n-1}(R)$ as an $F$-finite $F$-module.<br />Comment: 19 pages, v3 substantially reorganises v2, several proofs have been simplified or rewritten for clarity, and small errors have been corrected (whilst the numbering has changed, no new results are introduced)
- Subjects :
- Mathematics - Commutative Algebra
13C70 (Primary) 13A35, 13D45, 13F65 (Secondary)
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2310.14410
- Document Type :
- Working Paper