English

An update on a few permanent conjectures

Combinatorics 2016-08-10 v1

Abstract

We review and update on a few conjectures concerning matrix permanent that are easily stated, understood, and accessible to general math audience. They are: Soules permanent-on-top conjecture{}^\dagger, Lieb permanent dominance conjecture, Bapat and Sunder conjecture{}^\dagger on Hadamard product and diagonal entries, Chollet conjecture on Hadamard product, Marcus conjecture on permanent of permanents, and several other conjectures. Some of these conjectures are recently settled; some are still open. We also raise a few new questions for future study. ({}^\daggerconjectures have been recently settled negatively.)

Keywords

Cite

@article{arxiv.1608.02844,
  title  = {An update on a few permanent conjectures},
  author = {Fuzhen Zhang},
  journal= {arXiv preprint arXiv:1608.02844},
  year   = {2016}
}

Comments

To appear in the journal Special Matrices

R2 v1 2026-06-22T15:16:00.286Z