Results 121 to 130 of about 1,383 (202)

An area-bounce exchanging bijection on a large subset of Dyck paths

open access: yes
It is a longstanding open problem to find a bijection exchanging area and bounce statistics on Dyck paths. We settle this problem for an exponentially large subset of Dyck paths via an explicit bijection. Moreover, we prove that this bijection is natural
Ayyer, Arvind, Sundaravaradan, Naren
core   +2 more sources

Generalizing Matrix Representations to Fully Heterochronous Ranked Tree Shapes. [PDF]

open access: yesBull Math Biol
Jennings-Shaffer C   +3 more
europepmc   +1 more source

An Area-to-Inv Bijection between Dyck Paths and 312-avoiding Permutations

open access: yes, 2001
The symmetric q, t-Catalan polynomial C n (q, t), which specializes to the Catalan polynomial C n (q)whent = 1, was defined by Garsia and Haiman in 1994.
Jason Bandlow, Kendra Killpatrick
core  

Energy Infrastructure Clears the Way for Coyotes in Alberta's Oil Sands. [PDF]

open access: yesEcol Evol
Clarke JF   +7 more
europepmc   +1 more source

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