Results 81 to 90 of about 13,417,881 (325)

Hypercentral unit groups and the hyperbolicity of a modular group algebra [PDF]

open access: yesarXiv, 2006
We classify groups G such that the unit group U(ZG) is hypercentral. In the second part we classify groups G whose modular group algebra has hyperbolic unit group V(KG).
arxiv  

Ultrafast Excitonic Transitions in Enantiopure and Racemic Squaraine Thin Films

open access: yesAggregate, Volume 6, Issue 3, March 2025.
Ultrafast optical excitation of both J‐ and H‐like bands in enantiopure ProSQ‐C16 thin films leads to highly similar spectral and dynamic responses, suggesting that a single aggregate type is responsible for the excitonic properties such as the giant circular dichroism reported previously.
Robin Bernhardt   +6 more
wiley   +1 more source

Finite semisimple group algebra of a normally monomial group [PDF]

open access: yesarXiv, 2017
In this paper, the complete algebraic structure of finite semisimple group algebra of a normally monomial group is described. The main result is illustrated by computing the explicit Wedderburn decomposition of finite semisimple group algebras of various normally monomial groups. The automorphism groups of these group algebras are also determined.
arxiv  

Fundamental groups of symplectic singularities [PDF]

open access: yes, 2013
Let (X, \omega) be an affine symplectic variety. Assume that X has a C^*-action with positive weights and \omega is homogeneous with respect to the C^*-action. We prove that the algebraic fundamental group of the smooth locus X_{reg} is finite. This is a
Namikawa, Yoshinori
core  

Selection of solvents for integrated CO2 absorption and electrochemical reduction systems

open access: yesAIChE Journal, Volume 71, Issue 5, May 2025.
Abstract Solvent‐based electrochemical CO2 reduction (CO2R) enables the production of chemicals or fuels using CO2 from a preceding absorption process. Employing previously tested CO2 capture solvents does not ensure their suitability for either CO2R or integrated CO2 absorption‐reduction.
Fragkiskos Tzirakis   +7 more
wiley   +1 more source

Primitive decompositions of idempotents of the group algebras of dihedral groups and generalized quaternion groups [PDF]

open access: yesarXiv, 2022
In this paper, we introduce a method computing the primitive decomposition of idempotents of any semisimple finite group algebra based on its matrix representations and Wedderburn decomposition. Particularly, we use this method to calculate the examples of the dihedral group algebras $\mathbb{C}[D_{2n}]$ and generalized quaternion group algebras ...
arxiv  

A Privacy‐Preserving System for Confidential Carpooling Services Using Homomorphic Encryption

open access: yesAdvanced Intelligent Systems, EarlyView.
This research presents a homomorphic encryption‐based solution to enhance privacy in carpooling without compromising functionality. Rigorous experiments confirm its robustness, accuracy, and efficiency in securely matching users while preserving confidentiality.
David Palma   +3 more
wiley   +1 more source

From Double Lie Groups to Quantum Groups [PDF]

open access: yesarXiv, 2002
It is shown that there is a $C^*$-algebraic quantum group related to any double Lie group. An algebra underlying this quantum group is an algebra of a differential groupoid naturally associated with a double Lie ...
arxiv  

Analog Implementation of a Spiking System for Performing Arithmetic Logic Operations on Mixed‐Signal Neuromorphic Processors

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 4, April 2025.
This article describes the spiking implementation of an arithmetic logic unit, the fundamental basis of which lies in the use of spiking logic gates. An extensive series of experiments validates the implemented designs on SpiNNaker and Dynap‐SE. This work takes a first step in the implementation of a spiking central processing unit.
Alvaro Ayuso‐Martinez   +5 more
wiley   +1 more source

Color Lie rings and PBW deformations of skew group algebras [PDF]

open access: yesarXiv, 2018
We investigate color Lie rings over finite group algebras and their universal enveloping algebras. We exhibit these universal enveloping algebras as PBW deformations of skew group algebras: Every color Lie ring over a finite group algebra with a particular Yetter-Drinfeld structure has universal enveloping algebra that is a quantum Drinfeld orbifold ...
arxiv  

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