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math.CO2021
Cruciform regions and a conjecture of Di Francesco
Mihai Ciucu
A recent conjecture of Di Francesco states that the number of domino tilings of a certain family of regions on the square lattice is given by a product formula reminiscent of the o…
math.CO2021
A new solution for the two dimensional dimer problem
Mihai Ciucu
The classical 1961 solution to the problem of determining the number of perfect matchings (or dimer coverings) of a rectangular grid graph -- due independently to Kasteleyn and to…