English

The enumeration of independent sets on some lattices

Combinatorics 2012-09-18 v2 Mathematical Physics math.MP Statistics Theory Statistics Theory

Abstract

In this paper, firstly we show that the entropy constants of the number of independent sets on certain plane lattices are the same as the entropy constants of the corresponding cylindrical and toroidal lattices. Secondly, we consider three more complex lattices which can not be handled by a single transfer matrix as in the plane quadratic lattice case. By introducing the concept of transfer multiplicity, we obtain the lower and upper bounds of the entropy constants of crossed quadratic lattice, generalized aztec diamond lattice and 8-8-4 lattice.

Keywords

Cite

@article{arxiv.0810.0866,
  title  = {The enumeration of independent sets on some lattices},
  author = {Zuhe Zhang},
  journal= {arXiv preprint arXiv:0810.0866},
  year   = {2012}
}