Results 61 to 70 of about 414,974 (297)
Ding-同调模的稳定性(Stability of Ding homological modules)
A homological characterization of the Ding projective dimensions of modules over arbitrary associative rings is give. Also, we prove that an iteration of the procedure used to define the Ding projective modules yields exactly the Ding projective modules.
WEIJie(魏杰), DONGJun(董珺)
doaj +1 more source
ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad +9 more
wiley +1 more source
Some products of commutators in an associative ring [PDF]
Let [Formula: see text] be a unital associative ring and let [Formula: see text] be the two-sided ideal of [Formula: see text] generated by all commutators [Formula: see text] [Formula: see text] where [Formula: see text], [Formula: see text] [Formula: see text]. It has been known that, if either [Formula: see text] or [Formula: see text] is odd, then
Galina Deryabina, Alexei Krasilnikov
openaire +4 more sources
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen +10 more
wiley +1 more source
Hereditary Radicals in Associative and Alternative Rings
In the first part of this paper we shall consider associative rings, pointing out where associativity is required. In the second part we shall consider not necessarily associative rings and in particular alternative rings.A property S of rings is said to
T. Anderson, A. Suliński, N. Divinsky
core +1 more source
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko +5 more
wiley +1 more source
Strict radical classes of associative rings
A class of rings is strongly hereditary if it is closed under taking subrings. Strict radical classes (that is, radical classes for which the class of semisimple rings is strongly hereditary) are studied, strongly hereditary strict radical classes are ...
Patrick N. Stewart
core +1 more source
On the mapping xy→(xy)n in an associative ring
We consider the following condition (*) on an associative ring R:(*). There exists a function f from R into R such that f is a group homomorphism of (R,+), f is injective on R2, and f(xy)=(xy)n(x,y) for some positive integer n(x,y)>1. Commutativity and
Scott J. Beslin, Awad Iskander
doaj +1 more source
On the associated graded ring of a group ring
In this paper we show that if the group ring KG of a group G over a field K is filtered by the powers of its augmentation ideal, then the associated graded ring is isomorphic to the universal enveloping algebra of the p-Lie algebra gr? G oz K, where gr?
openaire +2 more sources
Associated graded rings and connected sums [PDF]
arXiv admin note: text overlap with arXiv:1406 ...
Ananthnarayan, H. +3 more
openaire +3 more sources

