Journal of Siberian Federal University. Mathematics & Physics / Cardinality of the Ryser Classes and the Motzkin Paths with Weights

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2009 2 (3)
Authors
Krotkin, Vladislav S.; Kuzmin, Oleg V.
Contact information
Krotkin, Vladislav S. ; Kuzmin, Oleg V.
Keywords
(0,1)-matrix; the Ryser classes; the Motzkin paths
Abstract

We consider the problem of computation of the cardinality of matrix classes with fixed row and column sums. We obtain a new recurrence formula for the cardinality of these classes which gives a connection between this problem and the Motzkin paths. Examples of using the obtained recurrence relation are furnished.

Pages
312-318
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/1209