Results 31 to 40 of about 273,234 (253)

Strongly clean triangular matrix rings over local rings

open access: yesJournal of Algebra, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Borooah, Gautam   +2 more
openaire   +1 more source

STRONGLY CLEAN MATRICES OVER COMMUTATIVE LOCAL RINGS

open access: yesJournal of Algebra and Its Applications, 2012
An element of a ring is called strongly clean provided that it can be written as the sum of an idempotent and a unit that commute. We characterize, in this paper, the strongly cleanness of matrices over commutative local rings. This partially extend many known results such as Theorem 12 in Borooah, Diesl and Dorsey [Strongly clean matrix rings over ...
Chen, H., Gurgun, O., Kose, H.
openaire   +3 more sources

J~#-Uc cleanness and strongly J~#-Uc cleanness of rings

open access: yesNantong Daxue xuebao. Ziran kexue ban
A ring R is GU_cJ if U(R)=Uc(R)+J~#(R);R is (strongly) J~#-U_c-clean ring if for any a∈R,there exists g∈Uc(R),p2=p∈R,d∈J~#(R),such that ag=p+d (and ap=pa).GU_cJ rings and J~#-U_c-clean rings are proper generalizations of GUJ rings and GJ-clean rings ...
JIN Danya; HUANG Tao; CUI Jian
doaj   +1 more source

Influence of spin on the persistent current of strongly interacting electrons

open access: yes, 1996
The lowest eigenenergies of few, strongly interacting electrons in a one--dimensional ring are studied in the presence of an impurity barrier. The persistent current $\:I\:$, periodic in an Aharonov--Bohm flux penetrating the ring, is strongly influenced
Altshuler   +32 more
core   +1 more source

ON STRONGLY CLEAN MATRIX RINGS [PDF]

open access: yesGlasgow Mathematical Journal, 2006
A ring $R$ with identity is called strongly clean if every element of $R$ is the sum of an idempotent and a unit that commute. For a commutative local ring $R$ , $n=3,4$ , and $m, k, s \in {\mathbb N}$ it is proved that ${\mathbb M}_n(R)$ is strongly clean if and only if ${\mathbb M}_n(R[[x]])$ is strongly clean if and only if ${\mathbb M ...
LINGLING FAN, XIANDE YANG
openaire   +1 more source

Factorizations of Matrices Over Projective-free Rings [PDF]

open access: yes, 2014
An element of a ring $R$ is called strongly $J^{\#}$-clean provided that it can be written as the sum of an idempotent and an element in $J^{\#}(R)$ that commute.
Chen, H., Kose, H., Kurtulmaz, Y.
core  

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Coherence of Currents in Mesoscopic Cylinders

open access: yes, 1997
The persistent currents driven by the pure Aharonov-Bohm type magnetic field in mesoscopic normal metal or semiconducting cylinders are studied. A two-dimensional (2D) Fermi surfaces are characterized by four parameters.
Stebelski, M., Szopa, M., Zipper, E.
core   +1 more source

Strongly clean matrix rings over local rings

open access: yesJournal of Algebra, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Monitoring of circulating tumor DNA allows early detection of disease relapse in patients with operable breast cancer

open access: yesMolecular Oncology, EarlyView.
Monitoring circulating tumor DNA (ctDNA) in patients with operable breast cancer can reveal disease relapse earlier than radiology in a subset of patients. The failure to detect ctDNA in some patients with recurrent disease suggests that ctDNA could serve as a supplement to other monitoring approaches.
Kristin Løge Aanestad   +35 more
wiley   +1 more source

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