2 papers
math.CO2024
Embedding bumpless pipedreams as Bruhat chains
Tianyi Yu
Schubert polynomials are distinguished representatives of Schubert cycles in the cohomology of the flag variety. In the spirit of Bergeron and Sottile, we use the Bruhat order to g…
math.CO2023
Constructing a Gröbner basis of Griffin's ideal
Tianyi Yu
In his Ph.D. thesis, Sean Griffin introduced a family of ideals and found monomial bases for their quotient rings. These rings simultaneously generalize the Delta Conjecture coinva…