Results 101 to 110 of about 786,749 (367)
Механика машин, механизмов и материалов, 2013 The problems of constructing of linear drives with traditional toothed belt transmissions for coordinate systems of technological equipment, used for cutting semiconductor wafers with diamond wheel are discussed.
V.L. Basinyuk +3 more
doaj
Nilpotent graphs with crosscap at most two
AKCE International Journal of Graphs and Combinatorics, 2018 Let be a commutative ring with identity. The nilpotent graph of , denoted by , is a graph with vertex set , and two vertices and are adjacent if and only if is nilpotent, where .
A. Mallika, R. Kala
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Journal of Computer and System Sciences, 2017 We study the computational complexity of planar valued constraint satisfaction problems (VCSPs), which require the incidence graph of the instance be planar. First, we show that intractable Boolean VCSPs have to be self-complementary to be tractable in the planar setting, thus extending a corresponding result of Dvorak and Kupec [ICALP'15] from CSPs to
Fulla, Peter, Živný, Stanislav
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Isotopies of planar compacta need not extend to isotopies of planar continua [PDF]
arXiv, 2002 We construct an isotopy of a planar compactum that is not the restriction of an isotopy of any planar continuum.
arxiv
, 2014 Organometal trihalide perovskite based solar cells have exhibited the highest efficiencies to‐date when incorporated into mesostructured composites.
G. Eperon +4 more
semanticscholar +1 more source
Enumeration of Planar Constellations
Advances in Applied Mathematics, 2000 The enumeration of transitive ordered factorizations of a given permutation is a combinatorial problem related to singularity theory. Let $n\ge 1$, $m \ge 2$, and let $\si_0$ be a permutation of $\Sn_n$ having $d_i$ cycles of length $i$, for $i \ge 1$. We prove that the number of $m$-tuples $(\si_1, \ldots ,\si_m)$ of permutatinos of $\Sn_n$ such that:
Bousquet-Melou, Mireille +1 more
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Digital planarity—A review [PDF]
Discrete Applied Mathematics, 2007 AbstractDigital planarity is defined by digitizing Euclidean planes in the three-dimensional digital space of voxels; voxels are given either in the grid-point or the grid-cube model. The paper summarizes results (also including most of the proofs) about different aspects of digital planarity, such as supporting or separating Euclidean planes ...
Brimkov, V, Coeurjolly, D, Klette, R
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Frontiers in Neural Circuits, 2017 Radiate and planar neurons are the two major types of multipolar neurons in the ventral cochlear nucleus (VCN). Both cell types receive monosynaptic excitatory synaptic inputs from the auditory nerve, but have different responses to sound and project to ...
Ruili Xie, Paul B. Manis, Paul B. Manis
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Perovskite–fullerene hybrid materials suppress hysteresis in planar diodes
Nature Communications, 2015 Solution-processed planar perovskite devices are highly desirable in a wide variety of optoelectronic applications; however, they are prone to hysteresis and current instabilities.
Jixian Xu +17 more
semanticscholar +1 more source
The planar Chain Rule and the Differential Equation for the planar Logarithms [PDF]
arXiv, 2005 A planar monomial is by definition an isomorphism class of a finite, planar, reduced rooted tree. If $x$ denotes the tree with a single vertex, any planar monomial is a non-associative product in $x$ relative to $m-$array grafting. A planar power series $f(x)$ over a field $K$ in $x$ is an infinite sum of $K-$multiples of planar monomials including the
arxiv