Results 251 to 260 of about 30,193 (293)
Gradient metapopulation microfluidic ecologies shape genetic and biofilm drivers of T4r phage resistance in E. coli. [PDF]
NPJ Biofilms MicrobiomesNagy K +10 more
europepmc +1 more source
Perfect hexagon triple systems [PDF]
Discrete Mathematics, 2004 The graph consisting of the three 3-cycles (a,b,c), (c,d,e), and (e,f,a), where a,b,c,d,e, and f are distinct is called a hexagon triple. The 3-cycle (a,c,e) is called an “inside” 3-cycle; and the 3-cycles (a,b,c), (c,d,e), and (e,f,a) are called ...
Selda Küçükçifçi, C C Lindner
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Discrete Mathematics, 1999 In recent years, \textit{Burkhard Polster} championed the idea of producing ``nice'' pictures representing finite geometries in the Euclidean plane [cf. his beautiful `A geometrical picture book' published by Springer (New York) in (1998; Zbl 0914.51001)].
Andreas E Schroth
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Graphs and Combinatorics, 1993
Two classes of cubic graphs are introduced. Their construction is based on the geometry of the projective line. For instance, \(T(p)\), where \(p\) is an odd prime, has as vertices the 3-subsets of \(\text{PG} (1,p)\), where \(\{a,b,c\}\) and \(\{a,b,d\}\) are adjacent when the pairs \(\{a,b\}\) and \(\{c,d\}\) harmonically separate each other.
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Two classes of cubic graphs are introduced. Their construction is based on the geometry of the projective line. For instance, \(T(p)\), where \(p\) is an odd prime, has as vertices the 3-subsets of \(\text{PG} (1,p)\), where \(\{a,b,c\}\) and \(\{a,b,d\}\) are adjacent when the pairs \(\{a,b\}\) and \(\{c,d\}\) harmonically separate each other.
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Logica Universalis, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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IEEE Transactions on Information Theory, 1982
We wish to \int_{S}|Z-f(Z)|^{2},S the unit square, over all choices of f(Z) which take just n values. For large n it is shown that f(Z) approaches that function which on each face of a "hexagonal mesh" has the value of the centroid of that face. This problem in the design of quantizers for a pulse-code modulation (PCM) system arose in which pairs of ...
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We wish to \int_{S}|Z-f(Z)|^{2},S the unit square, over all choices of f(Z) which take just n values. For large n it is shown that f(Z) approaches that function which on each face of a "hexagonal mesh" has the value of the centroid of that face. This problem in the design of quantizers for a pulse-code modulation (PCM) system arose in which pairs of ...
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Hexagonal Distributions on Hexagonal Lattice
2013An infinite hexagonal lattice is introduced as a two-dimensional discretized uniform space for economic agglomeration. This chapter focuses on an analysis of geometrical characteristics of the lattice, as a vital prerequisite for the group-theoretic bifurcation analysis of this lattice that will be conducted in Chaps. 6–9.
Kiyohiro Ikeda, Kazuo Murota
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Nano Letters, 2015
Silicon, arguably the most important technological semiconductor, is predicted to exhibit a range of new and interesting properties when grown in the hexagonal crystal structure. To obtain pure hexagonal silicon is a great challenge because it naturally crystallizes in the cubic structure.
Hauge, Håkon Ikaros T. +14 more
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Silicon, arguably the most important technological semiconductor, is predicted to exhibit a range of new and interesting properties when grown in the hexagonal crystal structure. To obtain pure hexagonal silicon is a great challenge because it naturally crystallizes in the cubic structure.
Hauge, Håkon Ikaros T. +14 more
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Anacondensed hexagonal systems
Applied Mathematics and Computation, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roberto Cruz, Frank Duque, Juan Rada
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The Classical Aristotelian Hexagon Versus the Modern Duality Hexagon
Logica Universalis, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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