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Random Antagonistic Matrices

Mathematical Physics 2016-08-25 v2 Statistical Mechanics math.MP Populations and Evolution

Abstract

The ensemble of antagonistic matrices is introduced and studied. In antagonistic matrices the entries Ai,j\mathcal A_{i,j} and Aj,i\mathcal A_{j,i} are real and have opposite signs, or are both zero, and the diagonal is zero. This generalization of antisymmetric matrices is suggested by the linearized dynamics of competitive species in ecology.

Keywords

Cite

@article{arxiv.1605.00531,
  title  = {Random Antagonistic Matrices},
  author = {Giovanni M. Cicuta and Luca Guido Molinari},
  journal= {arXiv preprint arXiv:1605.00531},
  year   = {2016}
}

Comments

14 pages, 6 figures. References and text updated