2 papers
math.CO2019
Enumerating path diagrams in connection with -tangent and -secant numbers
Anum Khalid, Thomas Prellberg
We enumerate height-restricted path diagrams associated with -tangent and -secant numbers by considering convergents of continued fractions, leading to expressions involving…
math.CO2019
Skew Schur Function Representation of Directed Paths in a Slit
Anum Khalid, Thomas Prellberg
In this work, we establish a general relationship between the enumeration of weighted directed paths and skew Schur functions, extending work by Bousquet-Mélou, who expressed gener…