Results 71 to 80 of about 2,994 (170)

Hexagonal polyomino achievement

open access: yesDiscrete Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bode, Jens-P., Harborth, Heiko
openaire   +2 more sources

Solving Generalized Polyomino Puzzles Using the Ising Model. [PDF]

open access: yesEntropy (Basel), 2022
Takabatake K, Yanagisawa K, Akiyama Y.
europepmc   +1 more source

Nested Reconfigurable Robots: Theory, Design, and Realization

open access: yesInternational Journal of Advanced Robotic Systems, 2015
Rather than the conventional classification method, we propose to divide modular and reconfigurable robots into intra-, inter-, and nested reconfigurations.
Ning Tan   +4 more
doaj   +1 more source

Symmetry and simplicity spontaneously emerge from the algorithmic nature of evolution. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Johnston IG   +6 more
europepmc   +1 more source

The excedances and descents of bi-increasing permutations

open access: yes, 2002
Starting from some considerations we make about the relations between certain difference statistics and the classical permutation statistics we study permutations whose inversion number and excedance difference coincide.
Reifegerste, Astrid
core   +1 more source

Increasing and Decreasing Sequences in Fillings of Moon Polyominoes

open access: yes, 2008
We present an adaptation of jeu de taquin and promotion for arbitrary fillings of moon polyominoes. Using this construction we show various symmetry properties of such fillings taking into account the lengths of longest increasing and decreasing chains ...
Rubey, Martin
core   +1 more source

Statistics on parallelogram polyominoes and aq,t-analogue of the Narayana numbers [PDF]

open access: green, 2014
Jean-Christophe Aval   +4 more
openalex   +1 more source

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