Results 71 to 80 of about 21,679 (290)
Gate‐Tunable Floquet Weyl Photon Emission from Topological Dirac Semimetal Cd3As2
Advanced Materials, EarlyView.We report experimental demonstration of Floquet band engineering in a 3D Dirac semimetal. Circularly polarized light breaks the time reversal symmetry and transforms Cd3As2 into a Floquet–Weyl phase, splitting Dirac nodes into chirality‐opposite Weyl nodes with nonzero Berry curvature.
Sobhan Subhra Mishra +4 more
wiley +1 more source
Quadrilateral embeddings of cartesian product graphs [PDF]
, 2016 Quadrilateral embeddings of cartesian product graphs were first investigated by White and others as part of work on representing groups in surfaces using their Cayley graphs. Later the problem was studied in more generality. A number of important results
Ellingham, Mark
core +1 more source
On (2-d)-kernels in the cartesian product of graphs [PDF]
, 2016 In this paper we study the problem of the existence of (2-d)-kernels in the cartesian product of graphs. We give sufficient conditions for the existence of (2-d)-kernels in the cartesian product and also we consider the number of (2-d ...
Bednarz, Paweł, Włoch, Iwona
core +2 more sources
Computing role assignments of Cartesian product of graphs [PDF]
, 2023 Network science is a growing field of study using Graph Theory as a modeling tool. In social networks, a role assignment is such that individuals play the same role, if they relate in the same way to other individuals playing counterpart roles.
Julliano Rosa Nascimento +3 more
core +1 more source
Problems of Cartesian Product Solved by Elementary School Students Sandra Maria Pinto MaginaI
Educação & Realidade, 2018 The study investigated the solution of direct (which requires multiplication for its resolution) and inverse (which requires division for its resolution) Cartesian product problems by elementary education students, examining the level of problem ...
Sandra Maria Pinto Magina +2 more
doaj +1 more source
An improvement in the two-packing bound related to Vizing's conjecture
Theory and Applications of Graphs, 2020 Vizing's conjecture states that the domination number of the Cartesian product of graphs is at least the product of the domination numbers of the two factor graphs.
Kimber Wolff
doaj +1 more source
Measuring the Hall Effect in Hysteretic Materials
Advanced Materials, EarlyView.The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya +6 more
wiley +1 more source
Domination of a generalized Cartesian product [PDF]
, 2009 Let $G\ensuremath{\mathbin{\raisebox{0.3mm}{$\scriptstyle\square$}}} H$ denote the Cartesian product of the graphs $G$ and $H$. Domination of the Cartesian product of two graphs has received much attention, with a main objective to confirm the truth of ...
Benecke, Stephen
core +1 more source
Game chromatic number of Cartesian and corona product graphs [PDF]
, 2018 The game chromatic number $\chi_g$ is investigated for Cartesian product $G\square H$ and corona product $G\circ H$ of two graphs $G$ and $H$. The exact values for the game chromatic number of Cartesian product graph of $S_{3}\square S_{n}$ is found ...
Syed Ahtsham Ul Haq BOKHARY +5 more
core +2 more sources
Prime Factorization And Domination In The Hierarchical Product Of Graphs
Discussiones Mathematicae Graph Theory, 2017 In 2009, Barrière, Dalfó, Fiol, and Mitjana introduced the generalized hierarchical product of graphs. This operation is a generalization of the Cartesian product of graphs.
Anderson S.E. +3 more
doaj +1 more source