3 papers
math.CO2020
Sorting with pattern-avoiding stacks: the -machine
Giulio Cerbai, Anders Claesson, Luca Ferrari +1
This paper continues the analysis of the pattern-avoiding sorting machines recently introduced by Cerbai, Claesson and Ferrari [CCF]. These devices consist of two stacks, through w…
math.CO2020
Permutations, moments, measures
Natasha Blitvić, Einar Steingrímsson
Which combinatorial sequences correspond to moments of probability measures on the real line? We present a generating function, in the form of a continued fraction, for a fourteen-…
math.CO2012
An involution on β(1,0)-trees
Anders Claesson, Sergey Kitaev, Einar Steingrímsson
In [Decompositions and statistics for β(1,0)-trees and nonseparable permutations, Advances Appl. Math. 42 (2009) 313--328] we introduced an involution, h, on β(1,0)-trees. We negle…