Results 111 to 120 of about 97,313 (257)
Periodic points of rational functions over finite fields
Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.Abstract For q$q$ a prime power and ϕ$\phi$ a rational function with coefficients in Fq$\mathbb {F}_q$, let p(q,ϕ)$p(q,\phi)$ be the proportion of P1Fq$\mathbb {P}^1\left(\mathbb {F}_q\right)$ that is periodic with respect to ϕ$\phi$. Furthermore, if d$d$ is a positive integer, let Qd$Q_d$ be the set of prime powers coprime to d!$d!$ and let P(d,q ...
Derek Garton
wiley +1 more source
Advanced Science, Volume 12, Issue 25, July 3, 2025.How locus coeruleus noradrenergic‐spinal projections and subsequent α2A adrenoceptors‐CaMKII signaling cascades contribute to electroacupuncture‐induced antinociception in postoperative pain in mice is described. Abstract Postoperative pain remains a significant challenge in healthcare.
Wen‐Guang Chu +13 more
wiley +1 more source
Derivations and commutativity of rings [PDF]
Pacific Journal of Mathematics, 1979 Chung, Lung O. +2 more
openaire +5 more sources
Two elementary commutativity theorems for generalized boolean rings
International Journal of Mathematics and Mathematical Sciences, 1997 In this paper we prove that if R is a ring with 1 as an identity element in which xm−xn∈Z(R) for all x∈R and fixed relatively prime positive integers m and n, one of which is even, then R is commutative.
Vishnu Gupta
doaj +1 more source
Quasi $z^\circ$-submodules of reduced multiplication modules [PDF]
Journal of Mahani Mathematical ResearchThe purpose of this paper is to define and investigate the notion of quasi $z^\circ$-submodules of modules over a commutative ring as an extension of $z^\circ$-ideals of commutative rings.
Faranak Farshadifar
doaj +1 more source
Microwave Power Dependence of Electric Dipole Spin Resonance
physica status solidi (b), Volume 262, Issue 7, July 2025.The electric dipole spin resonance mediated by spin–orbit interaction (SOI) in quantum dots is analyzed. When the SOI Hamiltonian is proportional to the cube of the momentum operator, the effective spin Hamiltonian includes a residual spin‐momentum coupling term.
Yasuhiro Tokura
wiley +1 more source
Moduli of finite flat torsors over nodal curves
Journal of the London Mathematical Society, Volume 112, Issue 1, July 2025.Abstract We show that log flat torsors over a family X/S$X/S$ of nodal curves under a finite flat commutative group scheme G/S$G/S$ are classified by maps from the Cartier dual of G$G$ to the log Jacobian of X$X$. We deduce that fppf torsors on the smooth fiberss of X/S$X/S$ can be extended to global log flat torsors under some regularity hypotheses.
Sara Mehidi, Thibault Poiret
wiley +1 more source
Comaximal graph of commutative rings
Journal of Algebra, 2008 Let $R$ be a commutative ring with identity. Let $ (R)$ be a graph with vertices as elements of $R$, where two distinct vertices $a$ and $b$ are adjacent if and only if $Ra+Rb=R$. In this paper we consider a subgraph $ _2(R)$ of $ (R)$ which consists of non-unit elements. We look at the connectedness and the diameter of this graph.
Asiyeh Sattari +3 more
openaire +3 more sources