Results 11 to 20 of about 135,583 (285)
Phylogenetic Stochastic Mapping Without Matrix Exponentiation [PDF]
Journal of Computational Biology, 2014 Phylogenetic stochastic mapping is a method for reconstructing the history of trait changes on a phylogenetic tree relating species/organisms carrying the trait. State-of-the-art methods assume that the trait evolves according to a continuous-time Markov chain (CTMC) and work well for small state spaces.
Irvahn, Jan, Minin, Vladimir N
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Indecomposable Positive Maps in Matrix Algebras [PDF]
Canadian Mathematical Bulletin, 1988 AbstractWe prove that Choi's map in M3 cannot be written as the sum of a 2-positive map and a 2-copositive map. We also provide other examples of positive maps in Mn which cannot be written as the sum of an n-positive map and a 2-copositive map.
Tanahashi, Kôtarô, Tomiyama, Jun
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Mapping the Matrix: The Ways of Neocortex [PDF]
Neuron, 2007 While we know that the neocortex occupies 85% of our brains and that its circuits allow an enormous flexibility and repertoire of behavior (not to mention unexplained phenomena like consciousness), a century after Cajal we have very little knowledge of the details of the cortical circuits or their mode of function.
Douglas, R J, Martin, K A C
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Exact solution of the Bernoulli matching model of sequence alignment [PDF]
, 2008 Through a series of exact mappings we reinterpret the Bernoulli model of sequence alignment in terms of the discrete-time totally asymmetric exclusion process with backward sequential update and step function initial condition. Using earlier results from
G.M Schütz +6 more
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Logarithmic matrix transformations into Gw
International Journal of Mathematics and Mathematical Sciences, 2004 We introduced the logarithmic matrix Lt and studied it as mappings into ℓ and G in 1998 and 2000, respectively. In this paper, we study Lt as mappings into Gw.
Mulatu Lemma
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Journal of Mathematics, 2021 The aim of the paper is to give a description of nonlinear Jordan derivable mappings of a certain class of generalized matrix algebras by Lie product square-zero elements.
Xiuhai Fei, Haifang Zhang
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On Integer Images of Max-plus Linear Mappings [PDF]
, 2017 Let us extend the pair of operations (max,+) over real numbers to matrices in the same way as in conventional linear algebra. We study integer images of max-plus linear mappings.
Butkovic, Peter
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On (m,n)-Derivations of Some Algebras
Demonstratio Mathematica, 2014 Let A be a unital algebra, δ be a linear mapping from A into itself and m, n be fixed integers. We call δ an (m, n)-derivable mapping at Z, if mδ(AB) + nδ(BA) = mδ(A)B + mAδ(B) + nδ(B)A for all A,B ∈ A with AB = Z.
Shen Qihua, Li Jiankui, Guo Jianbin
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Globally Optimal Crowdsourcing Quality Management [PDF]
, 2015 We study crowdsourcing quality management, that is, given worker responses to a set of tasks, our goal is to jointly estimate the true answers for the tasks, as well as the quality of the workers.
Buckley C. +10 more
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Convex (α, β)-Generalized Contraction and Its Applications in Matrix Equations
Axioms, 2023 This paper investigates the existence and convergence of solutions for linear and nonlinear matrix equations. This study explores the potential of convex (α,β)-generalized contraction mappings in geodesic spaces, ensuring the existence of solutions for ...
Rahul Shukla, Winter Sinkala
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