Results 141 to 150 of about 8,688 (230)

Counting Spinal Phylogenetic Networks. [PDF]

Bull Math Biol
Francis A, Hendriksen M.
europepmc   +1 more source

A New Bijection between Natural Numbers and Rooted Trees

, 2008
A bijection is defined recursively between the set of natural numbers and the set of finite rooted trees. It is based on the prime decomposition of a natural number and the rank of a prime.
Peter R. Capello
core  

Universal Latent Representation in Finite Ring Continuum. [PDF]

Entropy (Basel)
Akhtman Y.
europepmc   +1 more source

Extension of partial atom-to-atom maps: uniqueness and algorithms. [PDF]

Algorithms Mol Biol
Laffitte MEG, Phan TL, Stadler PF.
europepmc   +1 more source

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

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  

Dimensional Analysis over Finite Holographic Substrate. [PDF]

Entropy (Basel)
Akhtman Y.
europepmc   +1 more source

Combinatorial proofs of Ismail's identities on Al-Salam-Chirara polynomials. [PDF]

Arab J Math
Uncu AK.
europepmc   +1 more source

Plumbing bijections

The legendary Mario and Luigi show us that whether you slap in the crossings as early as a warp pipe can shoot you or as late as the very last bend, the water system in Yoshi Hill comes out exactly the same!
openaire   +2 more sources

Some New Maximally Chaotic Discrete Maps. [PDF]

Entropy (Basel)
Choi H, Kim G, Song HY, Shin S, Lee C, Noh H.   +5 more
europepmc   +1 more source

Difference-Spectrum Completion of Multi-Weight Optical Orthogonal Codes. [PDF]

Entropy (Basel)
Park JU, Park SE, Jin D, Chung JH.
europepmc   +1 more source