Results 141 to 150 of about 889,165 (240)

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

On Link-disjoint Hamiltonian Cycles of Torus networks

open access: yes, 1997
The problem of embedding link-disjoint Hamiltonian cycles into torus networks is addressed. The maximum number of link-disjoint cycles is limited to half the degree of the node in a regular network.
Latifi, Shahram, Zheng, S. Q.
core   +1 more source

Long Cycles in Chromatic Digraphs Spanned by Hamiltonian Directed Paths

open access: yesMathematics
Let C be any oriented cycle on n vertices. We show that every (10n−4)-chromatic digraph spanned by a Hamiltonian directed path contains a subdivision of C.
Salman Ghazal, Nadine Dirani
doaj   +1 more source

Recent progress of the exchange bias based on 2D van der Waals ferromagnet

open access: yesInfoScience, EarlyView.
Ultrathin magnetic materials could help make smaller, energy‐efficient memories, but their magnetic states must remain stable and controllable. This review brings together recent research on exchange bias, a magnetic pinning effect in layered materials, and explains how interfaces and electrical, thermal or mechanical controls can tune it, with optical
Wajahat Ali, Shaojie Hu
wiley   +1 more source

The problem of finding two edge-disjoint hamiltonian cycles [PDF]

open access: yes, 2012
In this paper we consider an approach to solve the problem of finding two edge-disjoint Hamiltonian cycles.
Gorbenko, A., Popov, V.
core  

Pseudomagnetic fields for classical waves in two‐dimensional artificial lattices: Mechanisms and applications

open access: yesInfoScience, EarlyView.
Pseudomagnetic fields make light and sound emulate charged particles in magnetic fields, enabling magnetic‐free signal processing. This Review summarizes their origins, three implementations in two‐dimensional artificial lattices, and applications in energy localization and robust transport, guiding the design of topological integrated devices ...
Shuaihu Liu   +5 more
wiley   +1 more source

Equivalent Formulation of Thomassen's Conjecture Using Tutte Paths in Claw‐Free Graphs

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT We continue studying Thomassen's conjecture (every 4‐connected line graph has a Hamilton cycle) in the direction of a recently shown equivalence with Jackson's conjecture (every 2‐connected claw‐free graph has a Tutte cycle), and we extend the equivalent formulation as follows: In every connected claw‐free graph, any two vertices are connected
Adam Kabela   +2 more
wiley   +1 more source

Edge-disjoint Hamiltonian cycles in two-dimensional torus

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Myung M. Bae   +2 more
doaj   +1 more source

On Graphs Which Have Locally Complete 2‐Edge‐colourings and Their Relationship to Proper Circular‐Arc Graphs

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT A 2‐edge‐coloured graph G $G$ is called locally complete if for each vertex v $v$, the vertices adjacent to v $v$ through edges of the same colour induce a complete subgraph in G $G$. Locally complete 2‐edge‐coloured graphs have nice properties, and there exists a polynomial algorithm to decide whether such a graph has an alternating ...
Jørgen Bang‐Jensen, Jing Huang
wiley   +1 more source

Hamiltonian cycles in subdivided doubles

open access: yesArs Mathematica Contemporanea
The subdivided double construction on 4-regular graphs was used by Potočnik and Wilson to explore semi-symmetric (edge-transitive but not vertex-transitive) graphs, and can be used to construct every semi-symmetric 4-regular graph that contains a pair of twin vertices.
openaire   +2 more sources

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