Results 21 to 30 of about 5,057 (262)

Topological Boundary Floppy Modes in Quasicrystals

open access: yesPhysical Review X, 2019
Topological mechanics has been studied intensively in periodic lattices in the past a few years, leading to the discovery of topologically protected boundary floppy modes in Maxwell lattices.
Di Zhou, Leyou Zhang, Xiaoming Mao
doaj   +1 more source

HEMI-COMPLEMENTED LATTICES [PDF]

open access: yesJournal of Algebraic Systems
The notion of hemicomplemented lattices is introduced and some of the properties of these algebras are studied. Some characterization theorems of hemicomplemented lattices are derived with the help of minimal prime D-filters, ideals, and congruences. The
Phaneendra Kumar Ananthapatnayakuni   +1 more
doaj   +1 more source

On Semitopological De Morgan Residuated Lattices [PDF]

open access: yesTransactions on Fuzzy Sets and Systems, 2023
The class of De Morgan residuated lattices was introduced by L‎. ‎C‎. ‎Holdon (Kybernetika 54(3):443-475‎, ‎2018)‎, ‎recently‎, ‎many mathematicians have studied the theory of ideals or filters in De Morgan residuated lattices and some of them ...
Liviu-Constantin Holdon
doaj   +1 more source

Fracturing of topological Maxwell lattices

open access: yesNew Journal of Physics, 2018
We present fracturing analysis of topological Maxwell lattices when they are stretched by applied stress. Maxwell lattices are mechanical structures containing equal numbers of degrees of freedom and constraints in the bulk and are thus on the verge of ...
Leyou Zhang, Xiaoming Mao
doaj   +1 more source

Non-Trivial Transport Interface in a Hybrid Topological Material With Hexagonal Lattice Arrangement

open access: yesFrontiers in Physics, 2020
In this paper, a hybrid topological material with hexagonal lattice arrangement is proposed, consisting of six metal cylindrical resonators and a dielectric slab.
Lianlian Du   +5 more
doaj   +1 more source

Topological transitions with an imaginary Aubry-André-Harper potential

open access: yesPhysical Review Research, 2023
We study one-dimensional lattices with imaginary-valued Aubry-André-Harper (AAH) potentials. Such lattices can host edge states with purely imaginary eigenenergies, which differ from the edge states of the Hermitian AAH model and are stabilized by a non ...
Bofeng Zhu   +4 more
doaj   +1 more source

The Nested Topological Band-Gap Structure for the Periodic Domain Walls in a Photonic Super-Lattice

open access: yesCrystals
We study the nested topological band-gap structure of one-dimensional (1D) photonic super-lattices. One cell of the super-lattice is composed of two kinds of photonic crystals (PhCs) with different topologies so that there is a domain wall (DW) state at ...
Zhen Lai   +4 more
doaj   +1 more source

On separation of lattices

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
Separation properties of a lattice of subsets of an arbitrary set or separation properties between a pair of such lattices have strong implications on the associated lattice regular measures and conversely. A number of such relationships are investigated
Mabel Szeto
doaj   +1 more source

The prime and maximal spectra and the reticulation of residuated lattices with applications to De Morgan residuated lattices

open access: yesOpen Mathematics, 2020
In this paper, by using the ideal theory in residuated lattices, we construct the prime and maximal spectra (Zariski topology), proving that the prime and maximal spectra are compact topological spaces, and in the case of De Morgan residuated lattices ...
Holdon Liviu-Constantin
doaj   +1 more source

The lattice of closed congruences on a topological lattice [PDF]

open access: yesTransactions of the American Mathematical Society, 1981
Our primary objectives are: (1) if L L is a lattice endowed with a topology making both the meet and join continuous then ...
openaire   +1 more source

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