Results 31 to 40 of about 545,608 (316)

WHICH ALTERNATING AND SYMMETRIC GROUPS ARE UNIT GROUPS? [PDF]

open access: yesJournal of Algebra and Its Applications, 2013
We prove there is no ring with unit group isomorphic to Sn for n ≥ 5 and that there is no ring with unit group isomorphic to An for n ≥ 5, n ≠ 8. To prove the non-existence of such a ring, we prove the non-existence of a certain ideal in the group algebra 𝔽2[G], with G an alternating or symmetric group as above.
Davis, Christopher James   +1 more
openaire   +4 more sources

Multilayer neural networks with extensively many hidden units [PDF]

open access: yes, 2001
The information processing abilities of a multilayer neural network with a number of hidden units scaling as the input dimension are studied using statistical mechanics methods. The mapping from the input layer to the hidden units is performed by general
A. Bethge   +26 more
core   +1 more source

Mapping the Auditory Space of Culex pipiens Female Mosquitoes in 3D

open access: yesInsects, 2023
The task of directional hearing faces most animals that possess ears. They approach this task in different ways, but a common trait is the use of binaural cues to find the direction to the source of sound.
Dmitry N. Lapshin, Dmitry D. Vorontsov
doaj   +1 more source

Zassenhaus conjecture for central extensions of S5 [PDF]

open access: yes, 2008
We confirm a conjecture of Zassenhaus about rational conjugacy of torsion units in integral group rings for a covering group of the symmetric group S5 and for the general linear group GLð2; 5Þ. The first result, together with others from the literature,
Berman S. D.   +12 more
core   +3 more sources

A vibrational spectroscopic study of plancheite Cu 8Si 8O 22(OH) 4-H2O [PDF]

open access: yes, 2012
Planchéite Cu8Si8O22(OH)4•H2O is a hydrated copper hydroxy silicate. The objective of this work is to use Raman and infrared spectroscopy to determine the molecular structure of planchéite.
Frost, Ray, Xi, Yunfei
core   +2 more sources

A Single-Phase Extendable Topology for Multilevel Inverters [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2019
This paper presents a single-phase topology for multilevel inverters with minimum number of switching devices. The proposed topology significantly reduces the number of DC voltage sources, switches, and power diodes as the number of output voltage levels
Farzad Sedaghati   +2 more
doaj   +1 more source

Uncertain Price Competition in a Duopoly with Heterogeneous Availability [PDF]

open access: yes, 2015
We study the price competition in a duopoly with an arbitrary number of buyers. Each seller can offer multiple units of a commodity depending on the availability of the commodity which is random and may be different for different sellers. Sellers seek to
Lotfi, Mohammad Hassan, Sarkar, Saswati
core   +1 more source

Group completion and units in I-spaces

open access: yes, 2012
The category of I-spaces is the diagram category of spaces indexed by finite sets and injections. This is a symmetric monoidal category whose commutative monoids model all E-infinity spaces.
Boardman   +11 more
core   +1 more source

Holomorphic Isometries from the Unit Ball into Symmetric Domains [PDF]

open access: yesInternational Mathematics Research Notices, 2017
We construct isometric holomorphic embeddings of the unit ball into higher rank symmetric domains, first discovered by Mok, in an explicit way using Jordan triple systems, and prove uniqueness results for all domains, including the exceptional domains of dimension 16 and 27.
Upmeier, Harald   +2 more
openaire   +2 more sources

Highly Effective Thermally Activated Delayed Fluorescence Emitters Based on Symmetry and Asymmetry Nicotinonitrile Derivatives

open access: yesMolecules, 2022
In this study, we developed two thermally activated delayed fluorescence (TADF) emitters, ICzCN and ICzCYP, to apply to organic light-emitting diodes (OLEDs).
Min Gyeong Choi   +3 more
doaj   +1 more source

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