Zapiski Nauchnykh Seminarov POMI, Representation theory, dynamical systems, combinatorial methods. Part XXIII, Tome 421 (2014), pp. 5-18
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V. Aksenov; K. Kokhas. Domino tilings and determinants. Zapiski Nauchnykh Seminarov POMI, Representation theory, dynamical systems, combinatorial methods. Part XXIII, Tome 421 (2014), pp. 5-18. http://geodesic.mathdoc.fr/item/ZNSL_2014_421_a0/
@article{ZNSL_2014_421_a0,
author = {V. Aksenov and K. Kokhas},
title = {Domino tilings and determinants},
journal = {Zapiski Nauchnykh Seminarov POMI},
pages = {5--18},
year = {2014},
volume = {421},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/ZNSL_2014_421_a0/}
}
TY - JOUR
AU - V. Aksenov
AU - K. Kokhas
TI - Domino tilings and determinants
JO - Zapiski Nauchnykh Seminarov POMI
PY - 2014
SP - 5
EP - 18
VL - 421
UR - http://geodesic.mathdoc.fr/item/ZNSL_2014_421_a0/
LA - ru
ID - ZNSL_2014_421_a0
ER -
Consider an arbitrary simply connected squared figure $F$ on the plane and its dual graph (vertices correspond to cells, edges correspond to cells sharing a common side). We investigate the relationship between the determinant of the adjacency matrix of the graph and the domino tilings of the figure $F$. We prove that in the case where all the tilings can be splitted into pairs such that the numbers of vertical dominos in each pair differ by 1, then $\operatorname{det}A_F=0$. And in the case where all the tilings except one can be splitted into such pairs, $\operatorname{det}A_F=(-1)^s$, where $s$ is half the area of the figure $F$.