Generating functions for the number of permutations with limited displacement.
Kløve, Torleiv (2009)
The Electronic Journal of Combinatorics [electronic only]
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Kløve, Torleiv (2009)
The Electronic Journal of Combinatorics [electronic only]
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Ivana Jovović (2013)
Publications de l'Institut Mathématique
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Almkvist, Gert, Krattenthaler, Christian, Petersson, Joakim (2003)
Experimental Mathematics
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Cain, Bryan E., Zaballa, Ion (1992)
Portugaliae mathematica
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Navarro, E., Jódar, L., Company, R. (1994)
International Journal of Mathematics and Mathematical Sciences
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Raphael Loewy (2012)
Open Mathematics
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Let A be an n×n irreducible nonnegative (elementwise) matrix. Borobia and Moro raised the following question: Suppose that every diagonal of A contains a positive entry. Is A similar to a positive matrix? We give an affirmative answer in the case n = 4.
David M. Arnold, Adolf Mader, Otto Mutzbauer, Ebru Solak (2013)
Czechoslovak Mathematical Journal
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Almost completely decomposable groups with a critical typeset of type and a -primary regulator quotient are studied. It is shown that there are, depending on the exponent of the regulator quotient , either no indecomposables if ; only six near isomorphism types of indecomposables if ; and indecomposables of arbitrary large rank if .
Janaki, T.M., Rangarajan, Govindan (2003)
International Journal of Mathematics and Mathematical Sciences
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J. M. Hammersley (1953)
Compositio Mathematica
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Li, Hsuan-Chu, Chen, Young-Ming, Tan, Eng-Tjioe (2009)
Integers
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Anna Makarewicz, Piotr Pikuta, Dominik Szałkowski (2014)
Annales UMCS, Mathematica
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In this paper we present new identities for the Radić’s determinant of a rectangular matrix. The results include representations of the determinant of a rectangular matrix as a sum of determinants of square matrices and description how the determinant is affected by operations on columns such as interchanging columns, reversing columns or decomposing a single column