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GKZ Systems: Homology and Cohomology Numbers by franciscogreco is a document available to read on EtoBox.
This paper discusses the homology and cohomology intersection numbers of GKZ systems, linking them to regular triangulations and providing a formula for cohomology intersection numbers as a Laurent series. The authors prove a conjecture regarding the signature of the monodromy invariant hermitian form and demonstrate that the cohomology intersection number is rationally dependent on parameters. The main result extends previous findings by removing the unimodularity assumption from regular triangulations.
- Author
- franciscogreco
- Language
- EN