Results 11 to 20 of about 1,091 (207)

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

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

Divisive Cover [PDF]

open access: yesMathematics in Computer Science, 2018
To appear in Mathematics in Computer ...
Nello Blaser, Morten Brun
openaire   +2 more sources

Leibniz on Corporeal Substance [PDF]

open access: yesActa Baltica Historiae et Philosophiae Scientiarum, 2016
As an idealist, Gottfried Wilhelm Leibniz could not recognize anything corporeal as substantial. However, under the influence of Cartesian terminology, he devoted considerable effort to analysing the corporeal world, while not recognizing its real ...
Peeter Müürsepp
doaj   +1 more source

Number theory in secondary schools’ mathematics

open access: yesLietuvos Matematikos Rinkinys, 2021
Schools’ curricula are analyzed in terms of Number Theory.  We deduce,  that the concept of number is first and main in secondary schools’ Mathematics.  The problems of divisibility of numbers are also discussed, the examples of such problems are given.
Eugenijus Stankus
doaj   +1 more source

Plastid division [PDF]

open access: yesAoB PLANTS, 2010
Plastids undergo a process of binary fission in order to replicate. Plastid replication is required at two distinct stages of plant growth: during cell division to ensure correct plastid segregation, and during cell expansion and development to generate large populations of functional plastids, as in leaf mesophyll cells.
openaire   +2 more sources

Arithmetical Functions Associated with the k-ary Divisors of an Integer

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2018
The k-ary divisibility relations are a class of recursively defined relations beginning with standard divisibility and culminating in the so-called infinitary divisibility relation.
Joseph Vade Burnett   +4 more
doaj   +1 more source

Perfect divisibility and 2‐divisibility

open access: yesJournal of Graph Theory, 2018
AbstractA graph G is said to be 2‐divisible if for all (nonempty) induced subgraphs H of G, can be partitioned into two sets such that and . (Here denotes the clique number of G, the number of vertices in a largest clique of G). A graph G is said to be perfectly divisible if for all induced subgraphs H of G, can be partitioned into two sets such ...
Maria Chudnovsky, Vaidy Sivaraman
openaire   +4 more sources

A product autoregressive model with log-Laplace marginal distribution

open access: yesStatistica, 2013
The log-Laplace distribution and its properties are considered. Some important properties like multiplicative infinite divisibility, geometric multiplicative infinite divisibility and self-decomposability are discussed.
Kanichukattu K. Jose, Manu Mariam Thomas
doaj   +1 more source

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

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