Combinatorial and arithmetical properties of the restricted and associated Bell and factorial numbers VH Moll, JL Ramírez, D Villamizar
arXiv preprint arXiv:1707.08138, 2017
20 2017 Extensions of set partitions and permutations JB Caicedo, VH Moll, JL Ramirez, D Villamizar
The Electronic Journal of Combinatorics, P2. 20-P2. 20, 2019
18 2019 A combinatorial approach to the Stirling numbers of the first kind with higher level T Komatsu, JL Ramírez, D Villamizar
Studia Scientiarum Mathematicarum Hungarica 58 (3), 293-307, 2021
10 2021 Eulerian numbers associated with arithmetical progressions JL Ramírez, SN Villamarin, D Villamizar
The Electronic Journal of Combinatorics 25 (1), 1-48, 2018
10 2018 A combinatorial approach to the generalized central factorial numbers T Komatsu, JL Ramírez, D Villamizar
Mediterranean Journal of Mathematics 18 (5), 192, 2021
9 2021 New Modular Symmetric Function and its Applications: Modular s -Stirling Numbers B Abdelghafour, M Ahmia, JL Ramírez, D Villamizar
Bulletin of the Malaysian Mathematical Sciences Society 45 (3), 1093-1109, 2022
3 2022 Some connections between restricted Dyck paths, polyominoes, and non-crossing partitions R Flórez, JL Ramírez, FA Velandia, D Villamizar
arXiv preprint arXiv:2308.02059, 2023
2 2023 A refinement of Dyck paths: A combinatorial approach R Flórez, JL Ramírez, FA Velandia, D Villamizar
Discrete Mathematics, Algorithms and Applications 14 (07), 2250026, 2022
2 2022 Restricted Dyck paths on valleys sequence R Flórez, T Mansour, JL Ramírez, FA Velandia, D Villamizar
arXiv preprint arXiv:2108.08299, 2021
2 2021 Arithmetic properties of the sum of divisors T Amdeberhan, VH Moll, V Sharma, D Villamizar
Journal of Number Theory 223, 325-349, 2021
2 2021 The Combinatorics of Motzkin Polyominoes JL Baril, S Kirgizov, JL Ramírez, D Villamizar
arXiv preprint arXiv:2401.06228, 2024
1 2024 On the -Derangements of type B I Mezo, VH Moll, JL Ramírez, D Villamizar
arXiv preprint arXiv:2103.04151, 2021
1 2021 Symmetric tensor powers of graphs W Astaiza, AJ Barrios, H Chimal-Dzul, SR Garcia, J de la Luz, VH Moll, ...
arXiv preprint arXiv:2309.13741, 2023
2023 Combinatorial and Arithmetical Properties of Families of Sequences D Villamizar
Tulane University School of Science and Engineering, 2021
2021 Enumeration of r-smooth words over a finite alphabet T Mansour, JL Ramırez, D Villamizar
Restricted Dyck paths D Villamizar, R Florez, JL Ramirez, FA Velandia, T Mansour
2022 Virtual Joint Mathematics Meetings (JMM 2022), 0
Arithmetic properties of the sum of divisors V Sharma, T Amdeberhan, VH Moll, D Villamizar
2021 Fall Southeastern Sectional Meeting, 0