Results 21 to 30 of about 1,150 (221)

Evolution Equations for Quantum Semi-Markov Dynamics

open access: yesEntropy, 2020
Using a newly introduced connection between the local and non-local description of open quantum system dynamics, we investigate the relationship between these two characterisations in the case of quantum semi-Markov processes.
Nina Megier   +2 more
doaj   +1 more source

On the 2-adic order of Stirling numbers of the second kind and their differences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Let $n$ and $k$ be positive integers, $d(k)$ and $\nu_2(k)$ denote the number of ones in the binary representation of $k$ and the highest power of two dividing $k$, respectively.
Tamás Lengyel
doaj   +1 more source

The complexity of divisibility

open access: yesLinear Algebra and its Applications, 2016
We address two sets of long-standing open questions in probability theory, from a computational complexity perspective: divisibility of stochastic maps, and divisibility and decomposability of probability distributions. We prove that finite divisibility of stochastic maps is an NP-complete problem, and extend this result to nonnegative matrices, and ...
Bausch, Johannes, Cubitt, Toby
openaire   +4 more sources

Time: Avicenna, Aristotle; Two Perspectives or One? [PDF]

open access: yesحکمت و فلسفه, 2012
The concept of time, its existence, ontology, and epistemology are considered as a pivotal philosophical issue from the ancient Greek time up to now. Aristotle explicitly deals with this subject. His notion of time can be also seen in Avicenna’s writings.
zohreh abd khodai   +1 more
doaj   +1 more source

Construction of the common multiple concept in the domain of whole numbers

open access: yesEnseñanza de las Ciencias, 2011
The purpose of this research was to characterize the construction process of common multiple of two whole numbers as a part of divisibility scheme in Secondary School students.
Ana Isabel Roig   +2 more
doaj   +1 more source

Between Eleatics and Atomists: Gorgias’ Argument against Motion

open access: yesArchai: Revista de Estudos sobre as Origens do Pensamento Ocidental, 2021
The aim of my paper is to investigate Gorgias’ argument against motion, which is found in his Peri tou meontos and preserved only in MXG 980a18. I tried to shed new light both on this specific reflection and on the reliability of Pseudo-Aristotle’s ...
Roberta Ioli
doaj   +1 more source

Divisibility of the Second–Order Minors of the Nominators by Minimal Denominators of Transfer Matrices of Cyclic Fractional Linear Systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2021
The divisibility of the second-order minors of the numerators of transfer matrices by their minimal denominators for cyclic fractional linear systems is analyzed. It is shown that all nonzero second-order minors of the numerators of the transfer matrices
Kaczorek Tadeusz
doaj   +1 more source

Fair division with subjective divisibility

open access: yesGames and Economic Behavior
The classic fair division problems assume the resources to be allocated are either divisible or indivisible, or contain a mixture of both, but the agents always have a predetermined and uncontroversial agreement on the (in)divisibility of the resources.
Xiaohui Bei, Shengxin Liu, Xinhang Lu
openaire   +3 more sources

Chloroplast Division [PDF]

open access: yesTraffic, 2007
Chloroplasts are descendants of cyanobacteria and divide by binary fission. Several components of the division apparatus have been identified in the past several years and we are beginning to appreciate the plastid division process at a mechanistic level.
Jonathan M, Glynn   +4 more
openaire   +2 more sources

On an Arithmetic Inequality

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
We obtain an arithmetic proof and a refinement of the inequality ϕ (nk) + σk(n) < 2nk, where n ≧ 2 and k ≧ 2. An application to another inequality is also provided.
Sándor József
doaj   +1 more source

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