Results 121 to 130 of about 60,182 (167)
Short-Term Changes in Retinal Activity With Four Myopia Control Spectacle Lenses. [PDF]
Transl Vis Sci TechnolFernandes P +3 more
europepmc +1 more source
Diastereoselective Synthesis of <i>cis</i>-α,α'-Disubstituted Cyclic Ethers via Borane-Catalyzed Reductive Cyclization of Diketones. [PDF]
ACS CatalShcherbakov NV, Potin N, Mas-Roselló J.
europepmc +1 more source
Macrocyclic Ruthenium Ring Expansion Metathesis Polymerization Initiators Exhibit Tether Length-Dependent Behavior. [PDF]
OrganometallicsPomfret MN +10 more
europepmc +1 more source
Open reduction and internal fixation versus percutaneous multiple-trajectory screw fixation for unstable pelvic fractures with severe polytrauma: a prospective study. [PDF]
BMC SurgDu S, Zhang C, Zhang Y, Xiang Q.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Quasi-clean rings and strongly quasi-clean rings
Communications in Contemporary Mathematics, 2021An element [Formula: see text] of a ring [Formula: see text] is called a quasi-idempotent if [Formula: see text] for some central unit [Formula: see text] of [Formula: see text], or equivalently, [Formula: see text], where [Formula: see text] is a central unit and [Formula: see text] is an idempotent of [Formula: see text].
Tang, Gaohua, Su, Huadong, Yuan, Pingzhi
openaire +1 more source
Archiv der Mathematik, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicholson, W. K. +2 more
openaire +2 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicholson, W. K. +2 more
openaire +2 more sources
Algebra Colloquium, 2006
Let n be a positive integer. A ring R is called n-clean if every element of R can be written as a sum of an idempotent and n units in R. The class of n-clean rings contains clean rings and (S,n)-rings (i.e., every element is a sum of no more than n units). In this paper, we investigate some properties on n-clean rings.
Xiao, Guangshi, Tong, Wenting
openaire +1 more source
Let n be a positive integer. A ring R is called n-clean if every element of R can be written as a sum of an idempotent and n units in R. The class of n-clean rings contains clean rings and (S,n)-rings (i.e., every element is a sum of no more than n units). In this paper, we investigate some properties on n-clean rings.
Xiao, Guangshi, Tong, Wenting
openaire +1 more source