Results 51 to 60 of about 582,878 (165)

Polycomb group ring finger protein 6 suppresses Myc-induced lymphomagenesis. [PDF]

open access: yesLife Sci Alliance, 2022
Tanaskovic N   +12 more
europepmc   +1 more source

First Detection of X-Ray Polarization in Galactic Ultraluminous X-Ray Pulsar Swift J0243.6+6124 with IXPE

open access: yesThe Astrophysical Journal Letters
We report the results of first ever spectropolarimetric analyses of the Galactic ultraluminous X-ray pulsar Swift J0243.6+6124 during the 2023 outburst using quasi-simultaneous IXPE, NICER, and NuSTAR observations.
Seshadri Majumder   +4 more
doaj   +1 more source

Finite subgroups of group rings: a survey [PDF]

open access: yesAdvances in Group Theory and Applications, 2019
Leo Margolis, Ángel del Río
doaj   +1 more source

Group rings of graded rings. applications

open access: yesJournal of Pure and Applied Algebra, 1984
A ring R is graded by a group G if \(R=\oplus R(x)\) is a direct sum of the additive subgroups R(x) indexed by the elements \(x\in G\) and if \(R(x)R(y)\subseteq R(xy).\) For example, R could be a group ring S[G] or more generally a crossed product S*G.
openaire   +1 more source

On regular group rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
Let G be a multiplicative group, K a commutative ring with unit, and K(G) the group ring of G with respect to K. We say that K(G) is regular if given an x in K(G), there is a y in K(G) such that xyx = x. Using a homological characterization of regular rings which was found independently by M.
openaire   +2 more sources

Rings all of whose additive group endomorphisms are left multiplications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Motivated by Cauchy's functional equation f(x+y)=f(x)+f(y), we study in §1 special rings, namely, rings for which every endomorphism f of their additive group is of the form f(x)≡ax. In §2 we generalize to R algebras (R a fixed commutative ring) and give
Michael I. Rosen, Oved shisha
doaj   +1 more source

Evaluating risk factors in automotive supply chains: A hybrid fuzzy AHP-TOPSIS approach with extended PESTLE framework

open access: yesJournal of Open Innovation: Technology, Market and Complexity
The purpose of this study is to evaluate Exogenous Risk Factors (ERFs) affecting Key Performance Indicators (KPIs) in automotive supply chains, aiming to enhance resilience against global disruptions.
Ishansh Gupta   +3 more
doaj   +1 more source

Detecting underdetermination in parameterized quantum circuits

open access: yesMachine Learning: Science and Technology
A central question in machine learning is how reliable the predictions of a trained model are. Reliability includes the identification of instances for which a model is likely not to be trusted based on an analysis of the learning system itself.
Marie Kempkes   +3 more
doaj   +1 more source

On Orbits of the Ring Zmn under Action of the Group SL(m, Zn)

open access: yesActa Polytechnica, 2005
We consider the action of the finite matrix group SL(m,Zn ) on the ring Zmn. We determine orbits of this action for n arbitrary natural number. It is a generalization of the task which was studied by A. A. Kirillov for m = 2 and n prime number.
P. Novotný, J. Hrivnák
doaj  

Experimental investigations on in-plane and out-of-plane flexural performance of UHPC beams with wet joints

open access: yesFrontiers in Materials
Prefabricated bridges have emerged as a significant trend in modern bridge construction. To study the in-plane and out-of-plane flexural performance of ultra-high-performance concrete (UHPC) beams with wet joints, in-plane and out-of-plane specimens with
Shijing Chen   +5 more
doaj   +1 more source

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