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DM
1998
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13 years 4 months ago
Steep polyominoes, q-Motzkin numbers and q-Bessel functions
We introduce three deÿnitions of q-analogs of Motzkin numbers and illustrate some combinatorial interpretations of these q-numbers. We relate the ÿrst class of q-numbers to the ...
Elena Barcucci, Alberto Del Lungo, Jean-Marc Fedou...