Results 31 to 40 of about 427,861 (368)
Nature Communications, 2019 Polycyclic aromatic hydrocarbons (PAHs) represent key molecular building blocks leading to carbonaceous nanoparticles identified in combustion systems and extraterrestrial environments.
Long Zhao +8 more
semanticscholar +1 more source
Antioxidants, 2019 Methods for improving the antioxidant activity of phenolic compounds have been widely investigated; however, most studies have focused on the structure–activity correlations of substituents on the aromatic rings of catechols or flavonoids.
Kazuya Ichikawa +3 more
doaj +1 more source
Rings of invariants of finite groups when the bad primes exist [PDF]
, 2019 Let R be a ring (not necessarily with 1) and G be a finite group of automorphisms of R. The set B(R, G) of primes p such that p | |G| and R is not p-torsion free, is called the set of bad primes.
Bavula, V., Futorny, V.
core +1 more source
Kurosh-Amitsur Right Jacobson Radical of Type 0 for Right Near-Rings
International Journal of Mathematics and Mathematical Sciences, 2008 By a near-ring we mean a right near-ring. J0r, the right Jacobson radical of type 0, was introduced for near-rings by the first and second authors. In this paper properties of the radical J0r are studied. It is shown that J0r is a Kurosh-Amitsur radical
Ravi Srinivasa Rao +2 more
doaj +1 more source
On elementarily of radical classes of modules over noncommutative dedekind duo-domains
Karpatsʹkì Matematičnì Publìkacìï, 2013 We find some sufficient conditions for a radical class of an idempotent radical in the category of modules over a Dedekind left bounded duo-domain to be axiomatisable. In the case of the integer numbers ring this result implies the Gorbachuk-Komarnitskii
Y. T. Bilyak, M. Ya. Komarnitskii
doaj +1 more source
Simple biset functors and double Burnside rings [PDF]
, 2012 Let G be a finite group and let k be a field. Our purpose is to investigate the simple modules for the double Burnside ring kB(G,G). It turns out that they are evaluations at G of simple biset functors. For a fixed finite group H, we introduce a suitable
Bouc, Serge +2 more
core +2 more sources
Quasi-Duo Skew Polynomial Rings [PDF]
, 2008 A characterization of right (left) quasi-duo skew polynomial rings of endomorphism type and skew Laurent polynomial rings are given. In particular, it is shown that (1) the polynomial ring R[x] is right quasi-duo iff R[x] is commutative modulo its ...
André Leroy +13 more
core +4 more sources
PAH Growth in Flames and Space: Formation of the Phenalenyl Radical.
Journal of Physical Chemistry A, 2021 Polycyclic aromatic hydrocarbons (PAHs) are intermediates in the formation of soot particles and interstellar grains. However, their formation mechanisms in combustion and interstellar environments are not fully understood.
Z. Levey +7 more
semanticscholar +1 more source
On Polynomial Rings Over Nil Rings in Several Variables and the Central Closure of Prime Nil Rings
, 2016 We prove that the ring of polynomials in several commuting indeterminates over a nil ring cannot be homomorphically mapped onto a ring with identity, i.e. it is Brown-McCoy radical. It answers a question posed by Puczylowski and Smoktunowicz.
Chebotar, Mikhail +3 more
core +1 more source
Cohomology for infinitesimal unipotent algebraic and quantum groups [PDF]
, 2011 In this paper we study the structure of cohomology spaces for the Frobenius kernels of unipotent and parabolic algebraic group schemes and of their quantum analogs. Given a simple algebraic group $G$, a parabolic subgroup $P_J$, and its unipotent radical
Christopher M. Drupieski +15 more
core +1 more source