Results 71 to 80 of about 9,099,574 (279)

Algebras and Dihedral Defect Groups

open access: yesProceedings of the London Mathematical Society, 1987
Let F be an algebraically closed field of characteristic 2, and let G be a finite group. Let B be a block of the group algebra FG with dihedral defect group D of order \(2^ n\). It has been proved by \textit{R. Brauer} [Symp. Math. 13, 367-393 (1974; Zbl 0288.20010)] that B has either 1, 2 or 3 simple modules.
openaire   +3 more sources

The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study

open access: yesAdvanced Science, EarlyView.
Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley   +1 more source

Bilangan Kromatik Grap Commuting dan Non Commuting Grup Dihedral

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2015
Commuting graph is a graph that has a set of points X and two different vertices to be connected directly if each commutative in G. Let G non abelian group and Z(G) is a center of G.
Handrini Rahayuningtyas   +2 more
doaj   +1 more source

Weak automorphisms of dihedral groups [PDF]

open access: yesAlgebra universalis, 2010
Let \(G\) be a group; a bijective map \(\tau\colon G\to G\) is called a weak automorphism of \(G\) if for every \(n\in\mathbb N\), every \(g_1,g_2,\dots,g_n\in G\) and every \(\alpha_1,\alpha_2,\dots,\alpha_n\in\mathbb Z\) there are \(\beta_1,\beta_2,\dots,\beta_n\in\mathbb Z\) such that \[ \tau(g_1^{\alpha_1}\cdot g_2^{\alpha_2}\cdots g_n^{\alpha_n})=\
openaire   +1 more source

Molecularly Engineered Wing‐Shaped Azobenzene Memristors for Logic‐in‐Memory and Edge Visual Intelligence

open access: yesAdvanced Science, EarlyView.
Rational engineering of terminal substituents in symmetric azobenzene‐based molecules enables precise control over conformationally coupled charge‐transfer processes. This design yields tunable nonvolatile resistive memory behaviors, ranging from write‐once‐read‐many‐times (WORM) to rewritable switching.
Yanze Liu   +11 more
wiley   +1 more source

Optimizing HX-Group Compositions Using C++: A Computational Approach to Dihedral Group Hyperstructures

open access: yesMathematics
The HX-groups represent a generalization of the group notion. The Chinese mathematicians Mi Honghai and Li Honxing analyzed this theory. Starting with a group (G,·), they constructed another group (G,∗)⊂P∗(G), where P∗(G) is the set of non-empty subsets ...
Andromeda Pătraşcu Sonea   +1 more
doaj   +1 more source

Some properties of Square element graphs over semigroups

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
The Square element graph over a semigroup is a simple undirected graph whose vertex set consists precisely of all the non-zero elements of , and two vertices are adjacent if and only if either or belongs to the set , where 1 is the identity of the ...
Bijon Biswas   +3 more
doaj   +1 more source

Polynomials Associated with Dihedral Groups [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
There is a commutative algebra of differential-difference operators, with two parameters, associated to any dihedral group with an even number of reflections. The intertwining operator relates this algebra to the algebra of partial derivatives. This paper presents an explicit form of the action of the intertwining operator on polynomials by use of ...
openaire   +4 more sources

On the group matrices for a generalized dihedral group [PDF]

open access: yes, 1981
For the generalized dihedral group, an effective method is given to construct a matrix which transforms group matrices to a convenient block-diagonal ...
Wang, Kai
core   +1 more source

Interface‐Directed High Fluorescence Efficiency Two‐Dimensional Molecular Crystals With Surface‐Exposed Active Sites

open access: yesAdvanced Science, EarlyView.
Here, we designed the Me‐FBSe molecule and prepared a two‐dimensional molecular crystal via liquid‐liquid interface assembly. The crystal preserves the high photoluminescence quantum while simultaneously ensuring the high‐density surface exposure of active sites.
Shuya Liu   +6 more
wiley   +1 more source

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