4 citations · 10 across the 11 of their papers we have counts for
14 papers
Holonomic Sequences Arising from Laplace Transforms of Generalized Second Order Sequences
Rigoberto Flórez, Robinson Higuita-Diaz, José L. Ram\'ırez
We study the FiboLaplace and LucasLaplace sequences obtained by applying the Laplace transform to generalized Fibonacci-type and Lucas-type polynomials. We relate these families an…
Knight's paths towards Catalan numbers
Jean-Luc Baril, José Luis Ramirez
We provide enumerating results for partial knight's paths of a given size. We prove algebraically that zigzag knight's paths of a given size ending on the -axis are enumerated b…
Avoiding a pair of patterns in multisets and compositions
Vít Jelínek, Toufik Mansour, José L. Ramírez +1
In this paper, we study the Wilf-type equivalence relations among multiset permutations. We identify all multiset equivalences among pairs of patterns consisting of a pattern of le…
Generalized Ordered Set Partitions
Beáta Bényi, Miguel Méndez, José L. Ramirez
In this paper, we consider ordered set partitions obtained by imposing conditions on the size of the lists, and such that the first elements are in distinct blocks, respectivel…
Restricted -Stirling Numbers and their Combinatorial Applications
Beáta Bényi, Miguel Méndez, José L. Ramírez +1
We study set partitions with distinguished elements and block sizes found in an arbitrary index set . The enumeration of these -partitions leads to the introduction o…
Some Applications of -restricted Set Partitions
Beáta Bényi, José L. Ramírez
In the paper, the authors present several new relations and applications for the combinatorial sequence that counts the possible partitions of a finite set with the restriction tha…