José L. Ramírez - Research papers

Lista de publicaciones - Research papers

Research papers (Discrete Mathematics, Combinatorics, and Elementary Number Theory) Undergraduate student co-author indicated by an ∗ .
List of select papers. For complete list see Scopus and Google Scholar

Some distributions on increasing and flattened permutations,

with J.L. Baril,Aequationes Mathematicae, 100(29) (2026). (web, pdf, arXiv).

On colored partitions and Euler-type identities,

with B. Naranjo*. Integers 26 # A20 (2026). (web, pdf).

Inversions in colored permutations, derangements, and involutions,

with M. Ahmia and D. Villamizar. Advances in Applied Mathematics 173 (2026). (web, arXiv).

Enumeration of colored tilings on graphs via generating functions,

with D. Villamizar. RAIRO - Theoretical Informatics and Applications. 59 (2025). (web, pdf, arXiv).

Differential equations in Ward's calculus

with A. Luzon and M. A. Morón. Journal of Mathematical Analysis and Applications, 550 (2025), 129557. (pdf, web)

The combinatorics of Motzkin polyominoes

with J.L. Baril, S. Kirgizov, and D. Villamizar.Discrete Applied Mathematics, 364 (2025), 1-15. (web, pdf)

Arithmetic properties of biregular overpartitions

with M. Lamine and M. Ahmia.The Ramanujan Journal, 67:13(2025), 1--21. (web, pdf)

Grand zigzag knight's paths,

with J.L. Baril, N. Hassler, S. Kirgizov.Enumerative Combinatorics and Applications, 5(1) (2025), Article S2R6. (web, pdf).

Fibonacci and Catalan paths in a wall,

with J.L. Baril.Discrete Mathematics, 348 (2025), 114268. (web, pdf).

Colored random tilings on grids

with D. Villamizar. Journal of Automata, Languages and Combinatorics, 29 (1) (2024), 63--80. (web)

Pattern avoidance in weak ascent sequences

with B. Bényi and T. Mansour. Discrete Mathematics & Theoretical Computer Science. 26 (1), PermutationPatterns 2023 (2024), # 2. (web, pdf)

Restricted bargraphs and unimodal compositions

with R. Flórez and D. Villamizar. Journal of Combinatorial Theory, Series A. 208 (2024). (web, pdf)

Bijections between directed-column convex polyominoes and restricted compositions

with J.L. Baril and F. Velandia*.Theoretical Computer Sciences, 1003, (2024), 114626. (pdf, web)

Consecutive pattern-avoidance in Catalan words according to the last symbol

with J.L. Baril, D. Colmenares*, E. Silva*, L. Simbaqueba, and D. Toquica.RAIRO-Theoretical Informatics and Applications, 58 (2024). (pdf, web)

Last symbol distribution in pattern avoiding Catalan words

with J.L. Baril and J.F. González*.Mathematics in Computer Sciences, 18(1) (2024). (pdf, web)

Consecutive patterns in Catalan words and the descent distribution

with A. Rojas-Osorio*.Boletín de la Sociedad Matemática Mexicana, 29 (2023). (pdf, web)

Descent distribution on Catalan words avoiding ordered pairs of relations

with J.L. Baril.Advances in Applied Mathematics. 149 (2023), 102551. (pdf, web)

Restricted Dyck paths on valleys sequence,

with R. Flórez, T. Mansour, F. Velandia*, and D. Villamizar.Seminaire Lotharingien de Combinatoire 87B (2023)(Special issue for the 9th International Conference on Lattice Path Combinatorics and Applications). (pdf, web).

Knight's paths towards Catalan numbers,

with J.L. Baril.Discrete Mathematics, 346 (2023), 113372. (web).

Set partitions and partitions without singleton blocks of type B,

with I. Mező.Periodica Mathematica Hungarica, 85(2022), 246-263. (web).

Partition lattice with limited block sizes

with J. B. Caicedo and I. Mező.Graphs and Combinatorics, 38(2022), #146. (web)

Avoiding a pair of patterns in multisets and compositions

with V. Jelínek, T. Mansour, and M. Shattuck.Advances in Applied Mathematics 133 (2022), 102286. (pdf, web).

On q-poly-Bernoulli numbers arising from combinatorial interpretations,

with B. Bényi.Aequationes Mathematicae, 96 (2022), 465–487. (web).

Poly-Cauchy numbers of the second kind - the combinatorics behind,

with B. Bényi.Enumerative Combinatorics and Applications, 2(1)(2022), Article #S2R1. (pdf, web).

Statistics on bargraphs of Catalan words,

with D. Callan and T. Mansour.Journal of Automata, Languages and Combinatorics 26(2021), 177–196. (pdf, web).

Enumerations of rational non-decreasing Dyck paths with integer slope,

with R. Flórez.Graphs and Combinatorics, 37(2021), 2775–2801. (web).

Enumerations on polyominoes determined by Fuss-Catalan words,

with T. MansourThe Australasian Journal of Combinatorics. 81(3) (2021), 447–457. (pdf, web).

Counting lattice points on bargraphs of Catalan words,

with T. Mansour and D. Toquica. Mathematics in Computer Sciences, 15 (2021), 701–713. (pdf, web).

Enumerating symmetric peaks in non-decreasing Dyck paths,

with S. Elizalde and R. Flórez.Ars Mathematica Contemporanea, 21(2021), #1P2.04. (pdf, web).

On Ward’s differential calculus, Riordan matrices and Sheffer polynomials,

with A. Luzon and M. A. Morón. Linear Algebra and its Applications, 610 (2021), 440–473. (web).

Enumerating symmetric and asymmetric peaks in Dyck paths,

with R. Flórez.Discrete Mathematics, 343 (2020). (web).

A combinatorial approach to derangement matrix of type B,

with I. MezőLinear Algebra and its Applications, 582 (2019), 156-180. (web).

Enumerating several aspects of non-decreasing Dyck paths,

with R. Flórez and L. Junes.Discrete Mathematics, 342 (2019), 3079-3097. (web, pdf).

Extensions of set partitions and permutations,

with J. B. Caicedo*, V. Moll, and D. Villamizar. Electronic Journal of Combinatorics, 26(2) (2019), P2.20, 1–12. (web, pdf).

Some applications of S-restricted set partitions,

with B. Bényi. Periodica Mathematica Hungarica, 78 (2019), 110–127. (web, pdf).

Enumerations of peaks and valleys on non-decreasing Dyck paths,

with É. Czabarka, R. Flórez, and L. Junes.Discrete Mathematics, 341 (2018), 2789–2807. (web, pdf).

Eulerian numbers associated with arithmetical progressions,

with S. Villamarín* and D. Villamizar*.Electronic Journal of Combinatorics, 25(1) (2018), P1.48, 1–12. (web, pdf).

Combinatorial and arithmetical properties of the restricted and associated Bell and factorial numbers,

with V. Moll and D. Villamizar.Journal of Combinatorics, 9(4) (2018), 693–720. (web, pdf, arXiv).

Generalized Schroder matrix and its combinatorial interpretation,

with V. Sirvent.Linear and Multilinear Algebra, 66(2) (2018), 418–433. (web, pdf).

Divisibility properties of the r-Bell numbers and polynomials,

with I. Mező.Journal of Number Theory, 177 (2017), 136–152. (web, pdf).

Double parameter recurrences for polynomials in bi-infinite Riordan matrices and some derived identities,

with A. Luzon and M. A. Morón.Linear Algebra and its Applications, 511 (2016), 237–258. (web, pdf).

A generalization of the k-bonacci sequence from Riordan arrays,

with V. Sirvent. Electronic Journal of Combinatorics, 22(1) (2015), P1.38, 1–20. (web, pdf).

A generalization of the Fibonacci word fractal and the Fibonacci snowflake,

with R. De Castro and G. Rubiano. Theoretical Computer Science, 528 (2014), 40–56. (web, pdf, arXiv).

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