Abstract
The expanded Aztec diamond is a generalized version of the Aztec diamond, with an arbitrary number of long columns and long rows in the middle. In this paper, we count the number of domino tilings of the expanded Aztec diamond. The exact number of domino tilings is given by recurrence relations of state matrices by virtue of the state matrix recursion algorithm, recently developed by the author to solve various two-dimensional regular lattice model enumeration problems.
Original language | English |
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Pages (from-to) | 1185-1191 |
Number of pages | 7 |
Journal | Discrete Mathematics |
Volume | 341 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2018 Apr |
Keywords
- Aztec diamond
- Dimer covering
- Domino tiling
- Perfect matching
ASJC Scopus subject areas
- Theoretical Computer Science
- Discrete Mathematics and Combinatorics