English

Symmetry in maximal $(s-1,s+1)$ cores

Combinatorics 2014-11-04 v1

Abstract

We explain a "curious symmetry" for maximal (s1,s+1)(s-1,s+1)-core partitions first observed by T. Amdeberhan and E. Leven. Specifically, using the ss-abacus, we show such partitions have empty ss-core and that their ss-quotient is comprised of 2-cores. This imposes strong conditions on the partition structure, and implies both the Amdeberhan-Leven result and additional symmetry. We also find a more general family that exhibits these symmetries.

Keywords

Cite

@article{arxiv.1411.0339,
  title  = {Symmetry in maximal $(s-1,s+1)$ cores},
  author = {Rishi Nath},
  journal= {arXiv preprint arXiv:1411.0339},
  year   = {2014}
}