Results 31 to 40 of about 10,185 (266)

Stratification structures on a kind of completely distributive lattices and their applications in the theory of topological molecular lattices

Fuzzy Sets and Systems, 1997
Basing on the authors' earlier result on direct decompositions of molecular lattices, they give here the definitions of stratification structure, stratified point and stratified molecular lattice. Moreover, they consider the corresponding category \(\Omega\) taking the stratified molecular lattices as objects and the so-called stratification-preserving
Hongbin Cui, Chongyou Zheng
openaire   +1 more source

Bipartite Digraphs with Modular Concept Lattices of height 2

Қарағанды университетінің хабаршысы. Математика сериясы
This paper investigates the interaction between Formal Concept Analysis (FCA) and graph theory, with a focus on understanding the structure and representation of concept lattices derived from bipartite directed graphs.
A.O. Basheyeva, A.T. Zhussupova, Y.K. Nurlibayev   +2 more
doaj   +1 more source

Dulmage-Mendelsohn Percolation: Geometry of Maximally Packed Dimer Models and Topologically Protected Zero Modes on Site-Diluted Bipartite Lattices

Physical Review X, 2022
The classic combinatorial construct of maximum matchings probes the random geometry of regions with local sublattice imbalance in a site-diluted bipartite lattice.
Ritesh Bhola, Sounak Biswas, Md Mursalin Islam, Kedar Damle   +3 more
doaj   +1 more source

Flavor symmetries and the topology of special Kähler structures at rank 1

Journal of High Energy Physics, 2019
We propose a method for determining the flavor charge lattice of the continuous flavor symmetry of rank-1 4d N $$ \mathcal{N} $$ = 2 superconformal field theories (SCFTs) and IR free gauge theories from topological invariants of the special Kähler ...
Philip C. Argyres, Matteo Lotito
doaj   +1 more source

Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures

APL Materials, 2020
We highlight recent advances in the theory, materials fabrication, and experimental characterization of strongly correlated and topological states in [111] oriented transition metal oxide thin films and heterostructures, which are notoriously difficult ...
Jak Chakhalian, Xiaoran Liu, Gregory A. Fiete   +2 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Finite temperature phase transition in a cross-dimensional triangular lattice

New Journal of Physics, 2019
Atomic many-body phase transitions and quantum criticality have recently attracted much attention in non-standard optical lattices. Here we perform an experimental study of finite temperature superfluid transition of bosonic atoms confined in a three ...
Shengjie Jin, Xinxin Guo, Peng Peng, Xuzong Chen, Xiaopeng Li, Xiaoji Zhou   +5 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Geometric algebra and algebraic geometry of loop and Potts models

Journal of High Energy Physics, 2022
We uncover a connection between two seemingly separate subjects in integrable models: the representation theory of the affine Temperley-Lieb algebra, and the algebraic structure of solutions to the Bethe equations of the XXZ spin chain.
Janko Böhm, Jesper Lykke Jacobsen, Yunfeng Jiang, Yang Zhang   +3 more
doaj   +1 more source

Hexagonal optical lattices formed by coherent interference among three fundamental Gaussian beams with oblique incidence

Results in Physics, 2023
Hexagonal optical lattices (HOLs) are formed when three beams with oblique incidence coherently interfere with each other. Theoretical model considering the orientation of three fundamental Gaussian beams is established to describe all kinds of patterns ...
Shirui Zhang, Jingbo Ma, Peng Li, Ziheng Zhou, Yuzong Gu, Zhenkun Wu   +5 more
doaj   +1 more source