1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Nankai UniversityCN185 papers
- Chinese Academy of SciencesCN114 papers
- National University of SingaporeSG63 papers
- Tsinghua UniversityCN53 papers
- University of Chinese Academy of SciencesCN50 papers
- Peking UniversityCN48 papers
- Nanyang Technological UniversitySG43 papers
- Centre National de la Recherche ScientifiqueFR39 papers
- University of Science and Technology of ChinaCN37 papers
- Peng Huanwu Center for Fundamental TheoryCN31 papers
- Beijing Normal UniversityCN29 papers
- Lanzhou UniversityCN29 papers
11 papers · 2 filters
A determinant representation for generalized ballot and Fuss-Catalan numbers
James J. Y. Zhao
In this note we introduce a determinant and then give its evaluating formula. The determinant turns out to be a generalization of the well-known ballot and Fuss-Catalan numbers, wh…
k-Marked Dyson Symbols and Congruences for Moments of Cranks
William Y. C. Chen, Kathy Q. Ji, Erin Y. Y. Shen
By introducing -marked Durfee symbols, Andrews found a combinatorial interpretation of -th symmetrized moment of ranks of partitions of . Recently, Garvan int…
On the Positive Moments of Ranks of Partitions
William Y. C. Chen, Kathy Q. Ji, Erin Y. Y. Shen
By introducing -marked Durfee symbols, Andrews found a combinatorial interpretation of -th symmetrized moment of ranks of partitions of in terms of -m…
Some upper bounds for 3-rainbow index of graphs
Tingting Liu, Yumei Hu
A tree , in an edge-colored graph , is called {\em a rainbow tree} if no two edges of are assigned the same color. A {\em -rainbow coloring}of is an edge coloring…
A note on the 3-rainbow index of
Tingting Liu, Yumei Hu
A tree , in an edge-colored graph , is called {\em a rainbow tree} if no two edges of are assigned the same color. For a vertex subset , a tree that connects $…
Koroljuk's formula for counting lattice paths revisited
James J. Y. Zhao
Koroljuk gave a summation formula for counting the number of lattice paths from to with -steps in the plane that stay strictly above the line $y=k(x-d…
On Permutations with Bounded Drop Size
Joanna N. Chen, William Y. C. Chen
The maximum drop size of a permutation of is defined to be the maximum value of . Chung, Claesson, Dukes and Graham obtained polynomials $P_k(x)…
Hamilton cycles in almost distance-hereditary graphs
Bing Chen, Bo Ning
Let be a graph on vertices. A graph is almost distance-hereditary if each connected induced subgraph of has the property for…
Linked Partitions and Permutation Tableaux
William Y. C. Chen, Lewis H. Liu, Carol J. Wang
Linked partitions are introduced by Dykema in the study of transforms in free probability theory, whereas permutation tableaux are introduced by Steingrímsson and Williams in the s…
Proof of the Andrews-Dyson-Rhoades Conjecture on the spt-Crank
William Y. C. Chen, Kathy Q. Ji, Wenston J. T. Zang
The notion of the spt-crank of a vector partition, or an -partition, was introduced by Andrews, Garvan and Liang. Let denote the number of -partitions of with…
Ramanujan-type Congruences for Broken 2-Diamond Partitions Modulo 3
William Y. C. Chen, Anna R. B. Fan, Rebecca T. Yu
The notion of broken -diamond partitions was introduced by Andrews and Paule. Let denote the number of broken k-diamond partitions of . They also posed three conject…