Results 231 to 240 of about 1,006,297 (273)
A data-driven elucidation of the challenges in designing stable quinone derivatives for aqueous organic redox flow batteries: correlations between thermodynamics of chemical degradation and energy capacity metrics. [PDF]
Sci Technol Adv MaterLu N +4 more
europepmc +1 more source
A High-Refractive-Index and Partially Chemically Recyclable Polymer From a Sulfur-Rich Spiro-and-Fused Tricyclic Monomer. [PDF]
ChemistryNiu K, Wu T, Luo M, Xie X, Zhou J.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
On weakly reversible rings and strongly reversible rings
Publicationes Mathematicae Debrecen, 2010The authors introduce the following class of rings which contains all commutative and all reduced rings: a ring \(R\) is called weakly reversible if \(ab=0\) implies the existence of \(x,y,z\in R\) such that \(xbyaz\) is a nilpotent element. In the paper the behaviour of weakly reversible rings under diverse constructions is studied.
Zhao, Liang, Zhu, Xiaosheng
openaire +2 more sources
Journal of Algebra and Its Applications, 2019
We study rings in which [Formula: see text] nonzero idempotent implies [Formula: see text] is also an idempotent. We call such rings i-reversible. Besides studying the basic properties of i-reversible rings, we characterize i-reversible triangular matrix rings, i-reversible matrix rings over commutative rings and i-reversible exchange rings.
Khurana, Anjana, Khurana, Dinesh
openaire +2 more sources
We study rings in which [Formula: see text] nonzero idempotent implies [Formula: see text] is also an idempotent. We call such rings i-reversible. Besides studying the basic properties of i-reversible rings, we characterize i-reversible triangular matrix rings, i-reversible matrix rings over commutative rings and i-reversible exchange rings.
Khurana, Anjana, Khurana, Dinesh
openaire +2 more sources
Algebra Colloquium, 2009
An endomorphism α of a ring R is called right reversible if whenever ab = 0 for a, b ∈ R, then bα(a) = 0. A ring R is called right α-reversible if there exists a right reversible endomorphism α of R. The notion of an α-reversible ring is a generalization of α-rigid rings as well as an extension of reversible rings.
Baser, Muhittin +2 more
openaire +3 more sources
An endomorphism α of a ring R is called right reversible if whenever ab = 0 for a, b ∈ R, then bα(a) = 0. A ring R is called right α-reversible if there exists a right reversible endomorphism α of R. The notion of an α-reversible ring is a generalization of α-rigid rings as well as an extension of reversible rings.
Baser, Muhittin +2 more
openaire +3 more sources
Reversibility of tubal ring sterilization
Contraception, 1977Abstract The reversibility of the tubal ring sterilization technique was studied in 22 rabbits. Using microsurgery for end-to-end reanastomosis, a patency rate of 96% and a pregnancy rate of 86% was obtained. It is suggested that human tubal ring sterilization has a high probability of being reversible, although several factors of reversibility ...
W D, Boeckx, G, Vasquez, I A, Brosens
openaire +2 more sources
Reverse mathematics and semisimple rings
Archive for Mathematical Logic, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Bulletin of the London Mathematical Society, 1999
A ring \(R\) is called reversible if \(ab=0\) implies \(ba=0\); it is insertable if \(ab=0\) implies \(aRb=0\). Clearly any reversible ring is insertable, but not conversely. The author proves that a ring is (i) an integral domain if and only if it is prime and reversible (insertable), (ii) reduced if and only if it is semiprime and reversible ...
openaire +1 more source
A ring \(R\) is called reversible if \(ab=0\) implies \(ba=0\); it is insertable if \(ab=0\) implies \(aRb=0\). Clearly any reversible ring is insertable, but not conversely. The author proves that a ring is (i) an integral domain if and only if it is prime and reversible (insertable), (ii) reduced if and only if it is semiprime and reversible ...
openaire +1 more source