3 papers
math.CO2025
Weighted --Schur functions and their application to the --Schur alternating conjecture
Yaozhou Fan, Xing Gao
We introduce the new concept of weighted --Schur functions -- a novel family within the broader class of Katalan functions -- that unifies and extends both --Schur func…
math.CO2025
Lowering operators on --Schur functions and a lowering operator formula for closed --Schur functions
Yaozhou Fang, Xing Gao, Li Guo
This paper gives a systematic study of the lowering operators acting on the --Schur functions, motivated by the pivotal role played by the operators in the definition and stu…
math.CO2025
Alternating dual Pieri rule conjecture and -branching conjecture of closed -Schur Katalan functions
Yaozhou Fang, Xing Gao
For closed -Schur Katalan functions $\fgλ{k}$ with a positive integer and a -bounded partition, Blasiak, Morse and Seelinger proposed the alternating dual Pieri rul…