Results 61 to 70 of about 706,712 (309)
Let \(R\) be any commutative ring with unity, and let \(L\) be the lattice of the ideals of \(R\). It is known that \(L\) is a modular lattice. The authors announce further conditions on \(L\); for example, if \(L\) is complemented, then it is a Boolean algebra -- thus it cannot be a non-trivial projective geometry.
Ward, Morgan, Dilworth, R. P.
openaire +4 more sources
D’où viennent les relatives ? [PDF]
Relative clauses (of the type … le livre qui est sur la table…, la lettre que tu as écrite…) appeared in Latin by a shift from the correlative structure quas litteras scripsisti, eae… ‘quelle lettre tu as écrite, elle…’ to litterae quas scripsisti ...
Pierre Le Goffic
doaj
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
A flat of a matroid is cyclic if it is a union of circuits; such flats form a lattice under inclusion and, up to isomorphism, all lattices can be obtained this way. A lattice is a Tr-lattice if all matroids whose lattices of cyclic flats are isomorphic to it are transversal. We investigate some sufficient conditions for a lattice to be a Tr-lattice; a
openaire +4 more sources
Wall-flow filters are used in exhaust gas after treatment systems to reduce particulate matter emissions from internal combustion engines. The particles accumulate on the filter surface during operation, forming a layer that progressively increases the ...
Christoph Gaul +5 more
doaj +1 more source
Exploring Relationship Between Traditional Lattices and Graph Lattices of Topological Coding
It is known that there are no polynomial quantum algorithms to solve some lattice difficult problems. Uncolored graphic lattice and colored graphic lattice are the products of multidisciplinary intersection inspired by lattice theory. A uncolored graphic
ZHANG Mingjun, YANG Sihua, YAO Bing
doaj +1 more source
Lattice-Renormalization of the Polyakov Loop [PDF]
Zantow F. Lattice-Renormalization of the Polyakov Loop.
Zantow, Felix
core
Good lattice rules with a composite number of points based on the product weighted star discrepancy [PDF]
Rank-1 lattice rules based on a weighted star discrepancy with weights of a product form have been previously constructed under the assumption that the number of points is prime. Here, we extend these results to the non-prime case.
Vasile Sinescu +3 more
core +1 more source
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
SOME MORPHOLOGICAL ASPECTS OF FORM IN REGULAR DISCRETE STRUCTURES IN DESIGN
Some aspects of geometric form generation in regular discrete structures for different spheres of design and architecture are elaborated and the main promising directions/trends in their development are identified.
Korotich Andrey V.
doaj +1 more source

