2 papers
math.CO2025
Hankel Determinants for Convolution of Power Series: An Extension of Cigler's Results
Feihu Liu, Ying Wang, Yingrui Zhang +1
Cigler considered certain shifted Hankel determinants of convolution powers of Catalan numbers and conjectured identities for these determinants. Recently, Fulmek gave a bijective…
math.CO2025
Hankel determinants for convolution powers of Motzkin numbers
Ying Wang, Yingrui Zhang
We evaluate the Hankel determinants of the convolution powers of Motzkin numbers for by finding shifted periodic continued fractions, which arose in application of Sulan…