scholarly journals Affine lattice construction of spiral surfaces in frustrated Heisenberg models

2019 ◽  
Vol 100 (14) ◽  
Author(s):  
Péter Balla ◽  
Yasir Iqbal ◽  
Karlo Penc
Keyword(s):  
Heisenberg Models ◽  
Spiral Surfaces ◽  
Lattice Construction

scholarly journals G. Czédli’s tolerance factor lattice construction and weak ordered relations

2021 ◽  
Vol 82 (2) ◽  
Author(s):  
Sándor Radeleczki
Keyword(s):  
Concept Lattice ◽  
Tolerance Factor ◽  
Macneille Completion ◽  
Lattice Construction

AbstractG. Czédli proved that the blocks of any compatible tolerance T of a lattice L can be ordered in such a way that they form a lattice L/T called the factor lattice of L modulo T. Here we show that the Dedekind–MacNeille completion of the lattice L/T is isomorphic to the concept lattice of the context (L, L, R), where R stands for the reflexive weak ordered relation $$ \mathord {\le } \circ T$$ ≤ ∘ T . Weak ordered relations constitute the generalization of the ordered relations introduced by S. Valentini. Reflexive weak ordered relations can be characterized as compatible reflexive relations $$R\subseteq L^{2}$$ R ⊆ L 2 satisfying $$R=\ \mathord {\le } \circ R\circ \mathord {\le } $$ R = ≤ ∘ R ∘ ≤ .

Theory of Critical-Point Scattering and Correlations. II. Heisenberg Models

1972 ◽  
Vol 5 (7) ◽  
pp. 2668-2692 ◽  
Author(s):  
Douglas S. Ritchie ◽  
Michael E. Fisher
Keyword(s):  
Critical Point ◽  
Heisenberg Models

Analysis of Lattice Single Layer Cylindrical Structures

1987 ◽  
Vol 2 (2) ◽  
pp. 87-91 ◽  
Author(s):  
Istvan HegedüS
Keyword(s):  
Stress Distribution ◽  
Matrix Method ◽  
Regular Ring ◽  
Lattice Structure ◽  
Single Layer ◽  
Cylindrical Structures ◽  
Lattice Construction

A matrix method is presented for the calculation of bar forces in a single layer lattice cylinder composed of regular ring polygons and symmetrically arranged bracing bars. Substantial differences occur between the stress distribution in the lattice structure and that of the membrane cylinder under the same load. Therefore, a membrane cylinder cannot be considered as a replacement continuum for the lattice construction. The purpose of the paper is to draw attention to the danger in the utilisation, without due caution, of this analogy.

Multilayer Heisenberg models: linear spin wave analysis

1998 ◽  
Vol 190 (3) ◽  
pp. 321-331 ◽  
Author(s):  
Abdelilah Benyoussef ◽  
Abdelrhani Boubekri ◽  
Hamid Ez-Zahraouy
Keyword(s):  
Spin Wave ◽  
Wave Analysis ◽  
Heisenberg Models

scholarly journals Heisenberg models and a particular isotropic model

1993 ◽  
Vol 48 (10) ◽  
pp. 7125-7133 ◽  
Author(s):  
A. J. van der Sijs
Keyword(s):  
Isotropic Model ◽  
Heisenberg Models

Multi-waves interaction and optical solitons for Heisenberg models of fractal order

2021 ◽  
Author(s):  
Loubna Ouahid ◽  
M. A. Abdou ◽  
S. Owyed ◽  
A. M. Abdel-Baset ◽  
M. Inc
Keyword(s):  
Optical Solitons ◽  
Heisenberg Models ◽  
Waves Interaction

scholarly journals Critical Temperature of Heisenberg Models on Regular Trees, via Random Loops

2018 ◽  
Vol 173 (5) ◽  
pp. 1369-1385 ◽  
Author(s):  
Jakob E. Björnberg ◽  
Daniel Ueltschi
Keyword(s):  
Critical Temperature ◽  
Heisenberg Models
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