Results 211 to 220 of about 3,969,169 (246)

Children's color-based perception of warning intensity in traffic safety signs. [PDF]

Front Psychol
Pang J, Pang C, Chen L.
europepmc   +1 more source

PD Koch Complementary Fractal UHF Antenna Based on AMC Metasurface. [PDF]

Sensors (Basel)
Zhang H, Han D, Ke M, Luo L, Huang Z, Zhang G.   +5 more
europepmc   +1 more source

The Ypresian ichthyofauna of the Monte Solane Lagerstätte (Verona, northern Italy): A deep dive into the western Tethys early Eocene mesopelagic setting. [PDF]

PLoS One
Calzoni P, Giusberti L, Fornaciari E, Luciani V, Boscolo-Galazzo F, Bernardi M, Tomasoni R, Carnevale G.   +7 more
europepmc   +1 more source

A genomic framework for tracking antibiotic resistance genes: global dissemination of <i>cfr</i>-family genes. [PDF]

Antimicrob Agents Chemother
Liu H, Huang X, Li X, Li Y, Shang Z, Zhou H, Liu Y, Yan G, Dai J, He W-T.   +9 more
europepmc   +1 more source

Langer mesomelic dysplasia as a rare manifestation of <i>SHOX</i> deficiency: a narrative review. [PDF]

Front Genet
Piwar H, Pawlasek J, Sielaff P, Sztachelska M, Ordak M.   +4 more
europepmc   +1 more source

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Commuting Traces of Upper Triangular Matrix Rings

Aequationes Mathematicae, 2017
Let \(R\) be a unital ring with \(\frac{1}{2}\in R\), and \(T_{n}(R)\), \(n\geq3\), the upper triangular matrix ring over \(R\). Let \(B:T_{n}(R)\times T_{n}(R)\to T_{n}(R)\) be a biadditive map, and \(q:T_{n}(R)\to T_{n}(R)\) the trace of \(B\), i.e., \(q(X)=B(X,X)\) for all \(X\in T_{n}(R)\).
Daniel Eremita
exaly   +3 more sources

Automorphisms of Upper Triangular Matrix Rings

Archiv Der Mathematik, 1987
Let A be a simple artinian ring with center F and suppose A is finite dimensional over F. The Skolem-Noether theorem says that every F- automorphism of A is inner. In this note we show that every F- automorphism of the ring of upper triangular matrices over such a ring is inner.
S Jøndrup
exaly   +3 more sources

Zero Divisor Graphs of Upper Triangular Matrix Rings

Communications in Algebra, 2013
Let R be a commutative ring with identity 1 ≠ 0 and T be the ring of all n × n upper triangular matrices over R. In this paper, we describe the zero divisor graph of T. Some basic graph theory properties of are given, including determination of the girth and diameter. The structure of is discussed, and bounds for the number of edges are given.
Aihua Li, Ralph P Tucci
exaly   +2 more sources

Decomposition of Jordan Automorphisms of Strictly Upper Triangular Matrix Algebra Over Commutative Rings

Communications in Algebra, 2007
Over a 2-torsionfree commutative ring R with identity, the algebra of all strictly upper triangular n + 1 by n + 1 matrices is denoted by n 1. In this article, we prove that any Jordan automorphism of n 1 can be uniquely decomposed as a product of a graph automorphism, a diagonal automorphism, a central automorphism and an inner automorphism for n ≥ 3.
Xingtao Wang
exaly   +2 more sources