Results 51 to 60 of about 71,897 (268)
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
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"Animal Style" Objects of Ananyino Period on the Territory of the European Northeast
Археология евразийских степей, 2023 The article deals with the general features of primitive art objects on the territory of the European North-east, dating back to the Ananyino period of the Early Iron Age.
Vaskul Igor O.
doaj +1 more source
Some Primitive Permutation Groups
Proceedings of the London Mathematical Society, 1985 Let \(\Omega\) be a countable infinite set. A subset \(\Sigma\) of \(\Omega\) is called a moiety iff \(\Sigma\) and \(\Omega\)-\(\Sigma\) are infinite. The following theorem is proved: If G is a primitive permutation group of \(\Omega\) that has no countable orbits on moieties, then G is 2-fold transitive. Furthermore, either G is highly transitive or \
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Extremely primitive classical groups
Journal of Pure and Applied Algebra, 2012 A primitive permutation group \(G\) acting on a set \(\Omega\) is said to be `extremely primitive' if a point stabilizer acts primitively on each of its orbits. By a theorem of \textit{A. Mann, C. E. Praeger} and \textit{Á. Seress}, [Groups Geom. Dyn. 1, No.
Burness, Timothy C. +2 more
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Affine Primitive Groups and Semisymmetric Graphs [PDF]
The Electronic Journal of Combinatorics, 2013 In this paper, we investigate semisymmetric graphs which arise from affine primitive permutation groups. We give a characterization of such graphs, and then construct an infinite family of semisymmetric graphs which contains the Gray graph as the third smallest member.
Hua Han, Zai Ping Lu
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Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet
Advanced Materials, EarlyView.Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens +8 more
wiley +1 more source
Primitive Groups with a Determination of the Primitive Groups of Degree 20
American Journal of Mathematics, 1912 Made available in DSpace on 2014-09-18T16:14:37Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) primitivegroupsw00benn.pdf: 4007981 bytes, checksum: 11ff94a135ba9f82dd8428c4adb82cb6 (MD5) Previous issue date: 1910 ; Thesis (PhD.)--University of Illinois, 1910. ; Typescript. ; Vita.
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Simply transitive primitive groups [PDF]
Transactions of the American Mathematical Society, 1927 1. The transitive constituents of the subgroup that leaves fixed one letter of a transitive group occur in pairs of equal degree. Transitive constituents on one letter are to be taken into account in the above statement. The two members of a pair sometimes coincide. This important property of transitive groups was proved by means of a certain quadratic
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Primitive Deformations of Quantum p-Groups [PDF]
Algebras and Representation Theory, 2018 38 pages, 9 tables. We expanded and formalized our original version to a structured technique called Primitive Deformation, applicable in the classification of Hopf algebras in positive characteristic. We changed the title to fit in this new context.
Nguyen, Van C. +2 more
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Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles
Advanced Materials, EarlyView.Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung +9 more
wiley +1 more source