Results 51 to 60 of about 1,340 (226)

On degree-based topological indices of random polyomino chains.

open access: yesMathematical biosciences and engineering : MBE, 2022
In this article, we study the degree-based topological indices in a random polyomino chain. The key purpose of this manuscript is to obtain the asymptotic distribution, expected value and variance for the degree-based topological indices in a random ...
Sayl'e Sigarreta   +2 more
semanticscholar   +1 more source

Homology of polyomino tilings on flat surfaces [PDF]

open access: yesApplicable Analysis and Discrete Mathematics, 2021
The homology group of a tiling introduced by M. Reid is studied for certain topological tilings. As in the planar case, for finite square grids on topological surfaces, the method of homology groups, namely the non-triviality of some specific element ...
Edin Lidjan, Ðordje Baralic
semanticscholar   +1 more source

Balanced simplicial complex associated with 1 × p polyomino

open access: yesProceedings of the 4th Croatian Combinatorial Days, 2023
Balanced simplicial complexes are important objects in combinatorics and commutative algebra. A d -dimensional simplicial complex is balanced if its vertices can be coloured into d +1 colors, so there is no monochromatic edge.
Đorđe Barlić, Edin Liđan
semanticscholar   +1 more source

Primality of polyomino ideals by quadratic Gröbner basis [PDF]

open access: yesMathematische Nachrichten, 2020
In this work, we provide a necessary and sufficient condition on a polyomino ideal for having the set of inner 2‐minors as graded reverse lexicographic Gröbner basis, due to combinatorial properties of the polyomino itself.
Carla Mascia   +2 more
semanticscholar   +1 more source

Parallelogram Polyominoes and Corners

open access: yesJournal of Symbolic Computation, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Delest, Maylis   +2 more
openaire   +3 more sources

A Tiling-Theoretic Approach to Efficient Area Coverage in a Tetris-Inspired Floor Cleaning Robot

open access: yesIEEE Access, 2018
Although numerous studies have focused on the development and application of polyomino tiling theories, research of this nature is typically limited to the graphics and gaming fields.
Prabakaran Veerajagadheswar   +3 more
doaj   +1 more source

Polyominoes determined by involutions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
A permutomino of size n is a polyomino determined by particular pairs $(\pi_1, \pi_2)$ of permutations of length $n$, such that $\pi_1(i) \neq \pi_2(i)$, for $1 \leq i \leq n$.
Filippo Disanto, Simone Rinaldi
doaj   +1 more source

Polyomino convolutions and tiling problems [PDF]

open access: yes, 2001
We define a convolution operation on the set of polyominoes and use it to obtain a criterion for a given polyomino not to tile the plane (rotations and translations allowed).
Kisisel, AUO
core   +2 more sources

The Estimating of the Number of Lattice Tilings of a Plane by a Given Area Centrosymmetrical Polyomino

open access: yesМоделирование и анализ информационных систем, 2015
We study a problem about the number of lattice plane tilings by the given area centrosymmetrical polyominoes. A polyomino is a connected plane geomatric figure formed by joiining a finite number of unit squares edge to edge.
A. V. Shutov, E. V. Kolomeykina
doaj   +1 more source

Polyominoes on twisted cylinders [PDF]

open access: yesProceedings of the 29th annual symposium on Symposuim on computational geometry - SoCG '13, 2013
In this video we show how to enumerate polyominoes on twisted cylinders, and explain how to use them for setting lower bounds on the asymptotic growth rate of polyominoes in the plane.
Gill Barequet, Mira Shalah
openaire   +1 more source

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