Results 21 to 30 of about 1,014 (130)
Quantum Energy Storage in 2D Heterointerfaces [PDF]
, 2023 To address the global energy and environmental crisis, advanced energy storage systems with their superior electrochemical performances have been growing exponentially.
Ajayan, Pulickel M. +2 more
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Forbidden subgraphs of Co-prime graphs of finite groups [PDF]
Transactions on CombinatoricsFor a finite group $G$ the co-prime graph $\Gamma(G)$ is defined as a graph with vertex set $G$ in which two distinct vertices $x$ and $y$ are adjacent if and only if $gcd(o(x),o(y))=1$ where $o(x)$ and $o(y)$ denote the orders of the elements $x$ and $y$
Swathi V V, M. S. Sunitha
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Color Energy Of A Unitary Cayley Graph
Discussiones Mathematicae Graph Theory, 2014 Let G be a vertex colored graph. The minimum number χ(G) of colors needed for coloring of a graph G is called the chromatic number. Recently, Adiga et al.
Adiga Chandrashekar +2 more
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The eigenvalues and energy of integral circulant graphs [PDF]
Transactions on Combinatorics, 2012 A graph is called textit{circulant} if it is a Cayley graph on acyclic group, i.e. its adjacency matrix is circulant. Let $D$ be aset of positive, proper divisors of the integer $n>1$.
Mohsen Mollahajiaghaei
doaj
Determinants of adjacency matrices of graphs [PDF]
Transactions on Combinatorics, 2012 We study the set of all determinants of adjacency matrices of graphs with a given number of vertices. Using Brendan McKay's data base of small graphs, determinants of graphs with at most $9$ vertices are computed so that the number of non-isomorphic ...
Alireza Abdollahi
doaj
On the gcd-graphs over polynomial rings
Canadian Journal of MathematicsAbstract Gcd-graphs over the ring of integers modulo n are a natural generalization of unitary Cayley graphs. The study of these graphs has foundations in various mathematical fields, including number theory, ring theory, and representation theory.
Mináč, Ján +2 more
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In‐Situ Self‐Respiratory Solid‐to‐Hydrogel Electrolyte Interface Evoked Well‐Distributed Deposition on Zinc Anode for Highly Reversible Zinc‐Ion Batteries [PDF]
The aqueous zinc‐ion batteries (AZIB) have emerged as a promising technology in the realm of electrochemical energy storage. Despite its potential advantages in terms of safety, cost‐effectiveness, and inherent safety, AZIB faces significant challenges ...
Chen, Zhiyuan +6 more
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Rational approximations of irrational numbers
, 2022 Given quantities $\Delta_1,\Delta_2,\dots\geqslant 0$, a fundamental problem in Diophantine approximation is to understand which irrational numbers $x$ have infinitely many reduced rational approximations $a/q$ such that $|x-a/q|
Koukoulopoulos, Dimitris
core
Contemporary MathematicsIn this paper we define a simple undirected graph Og(Zn) whose vertices are all the elements of Zn and two distinct vertices a, b are adjacent if and only if gcd (O(a), O(b))= O(a·b) . We introduced that the graph Og(Zn) is complete graph for n=pq . where p, q are distinct prime. The graph Og(Zn) is not planar for n= p2 and n= 2k p.
Pinku Sarkar, Kuntala Patra
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Nanoengineering of NiO/MnO2/GO Ternary Composite for Use in High-Energy Storage Asymmetric Supercapacitor and Oxygen Evolution Reaction (OER). [PDF]
Designing multifunctional nanomaterials for high performing electrochemical energy conversion and storage devices has been very challenging. A number of strategies have been reported to introduce multifunctionality in electrode/catalyst materials ...
Adnan, M +9 more
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