Results 61 to 70 of about 1,420,320 (180)
Ain Shams Engineering JournalIn smart manufacturing systems, decision-making is essential for setting priorities and allocating resources as efficiently as possible. Predictive models are used to make decisions about whether to schedule maintenance, change production levels, or ...
Jabbar Ahmmad +2 more
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Analysis of Microbiome Data in the Presence of Excess Zeros
Frontiers in Microbiology, 2017 Motivation: An important feature of microbiome count data is the presence of a large number of zeros. A common strategy to handle these excess zeros is to add a small number called pseudo-count (e.g., 1).
Abhishek Kaul +3 more
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On the normally ordered tensor product and duality for Tate objects
, 2017 This paper generalizes the normally ordered tensor product from Tate vector spaces to Tate objects over arbitrary exact categories. We show how to lift bi-right exact monoidal structures, duality functors, and construct external Homs.
Braunling, Oliver +3 more
core
The group of order preserving automorphisms of an ordered abelian group [PDF]
Proceedings of the American Mathematical Society, 1958 1. Representation of an automorphism group by a group of matrices. Whenever possible we shall represent automorphisms by matrices. This is a straightforward generalization of the classical case (for example, see Kurosh [3, p. 156]), and no proofs will be given.
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Multiplicative Mappings of Gamma Rings
Cumhuriyet Science Journal, 2019 Let Mi and Γi (i = 1, 2) be abelian groups such that Mi is a Γi-ring.An ordered pair (ϕ, φ) of mappings is called a multiplicative isomorphismof M1 onto M2 if they satisfy the following properties: (i) ϕ is a bijectivemapping from M1 onto M2, (ii) φ is a
Bruno Ferreira, Ruth N. Ferreira
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Sixth-order lie group integrators [PDF]
Journal of Computational Physics, 1992 Symplectic integration is an approach to numerical integration of equations of motion that preserve invariants (like Hamiltonian systems). Here, the connection to Lie groups is exploited to derive a set of nonlinear equations the solutions of which determine sixth order symplectic integrators.
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Transactions of the American Mathematical Society, 1945 Everett, C. J., Ulam, S.
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Periodic Ordered Permutation Groups and Cyclic Orderings
Journal of Combinatorial Theory, Series B, 1995 It is shown that periodic ordered permutation groups satisfying certain extra conditions are very nearly simple. This is applied to several natural examples, such as the following. (i) If \(z\) denotes the map \(x \mapsto x + 1\) on \(\mathbb{R}\), and \(\text{Diff}(\mathbb{R})\) is the group of diffeomorphisms of \(\mathbb{R}\), then \(C_{\text{Diff}(\
Droste, M., Giraudet, M., Macpherson, D.
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Enumeration and Representation Theory of Spin Space Groups
Physical Review XFundamental physical properties, such as phase transitions, electronic structures, and spin excitations, in all magnetic ordered materials, were ultimately believed to rely on the symmetry theory of magnetic space groups.
Xiaobing Chen +9 more
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*-Maximum lattice-ordered groups
Rocky Mountain Journal of Mathematics, 2013 Denote by \(W\) the category of archimedean \(l\)-groups \(G\) with a distinguished positive weak order unit \(e_G\) (that is, \(e_G^\bot\equiv\{g:|g|\wedge e_G=0\}=\{0\}\)), and morphisms \(\varphi\colon G\to H\) the \(l\)-group homomorphisms with \(\varphi(e_G)=e_H\). For \(G\in |W|\), denote by \(G^*\equiv\{g\in G:\exists n\in\mathbb N\;|g|\leq ne_G\
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