Results 21 to 30 of about 15,352,997 (261)

On Some Problem for a Simplex and a Cube in Rⁿ

open access: yesМоделирование и анализ информационных систем, 2013
Let S be a nondegenerate simplex in Rⁿ. Denote by α(S) the minimal σ > 0 such that the unit cube Qn:= [0, 1]ⁿ is contained in a translate of σS. In the case α(S) ≠ 1 the translate of α(S)S containing Qn is a homothetic copy of S with the homothety ...
M. V. Nevskii
doaj   +1 more source

On Properties of a Regular Simplex Inscribed into a Ball

open access: yesМоделирование и анализ информационных систем, 2021
Let  $B$ be a Euclidean ball in ${\mathbb R}^n$ and let $C(B)$ be a space of continuos functions $f:B\to{\mathbb R}$ with the uniform norm $\|f\|_{C(B)}:=\max_{x\in B}|f(x)|.$ By $\Pi_1\left({\mathbb R}^n\right)$ we mean a set of polynomials of degree ...
Mikhail Viktorovich Nevskii
doaj   +1 more source

Fusions of Consciousness

open access: yesEntropy, 2023
What are conscious experiences? Can they combine to form new experiences? What are conscious subjects? Can they combine to form new subjects? Most attempts to answer these questions assume that spacetime, and some of its particles, are fundamental ...
Donald D. Hoffman   +2 more
doaj   +1 more source

On n-Dimensional Simplices Satisfying Inclusions S ⊂ [0, 1]n ⊂ nS

open access: yesМоделирование и анализ информационных систем, 2017
Let  \(n\in{\mathbb N}\),  \(Q_n=[0,1]^n.\) For a nondegenerate simplex  \(S\subset {\mathbb R}^n\), by  \(\sigma S\) we denote the homothetic image of  \(S\) with the center of homothety in the center of gravity of  \(S\) and ratio of homothety ...
Mikhail V. Nevskii, Alexey Y. Ukhalov
doaj   +1 more source

Higher Braid Groups and Regular Semigroups from Polyadic-Binary Correspondence

open access: yesMathematics, 2021
In this note, we first consider a ternary matrix group related to the von Neumann regular semigroups and to the Artin braid group (in an algebraic way).
Steven Duplij
doaj   +1 more source

A tight colored Tverberg theorem for maps to manifolds (extended abstract) [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
Any continuous map of an $N$-dimensional simplex $Δ _N$ with colored vertices to a $d$-dimensional manifold $M$ must map $r$ points from disjoint rainbow faces of $Δ _N$ to the same point in $M$, assuming that $N≥(r-1)(d+1)$, no $r$ vertices of $Δ _N ...
Pavle V. M. Blagojević   +2 more
doaj   +1 more source

Modeling Economy of Information Security of Business Entity Based on Simplex-Method

open access: yesВестник Российского экономического университета имени Г. В. Плеханова, 2021
In the field of information security it is always necessary to support a required level of protection, which can cause serious financial costs. The more information you should protect, the more money you should spend on it.
V. A. Sizov, A. A. Drozhkin
doaj   +1 more source

Calculation of the volume of simplex in barycentric coordinates in a multidimensional Euclidean space

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The paper describes three ways of calculating the k-dimensional volume of the k-dimensional simplex in the n-dimensional Euclidean space (n ≥ k) in the canonical barycentric coordinate system.
M. A. Stepanova
doaj   +1 more source

A Fast-Pivoting Algorithm for Whittle’s Restless Bandit Index

open access: yesMathematics, 2020
The Whittle index for restless bandits (two-action semi-Markov decision processes) provides an intuitively appealing optimal policy for controlling a single generic project that can be active (engaged) or passive (rested) at each decision epoch, and ...
José Niño-Mora
doaj   +1 more source

The Shadow Knows: Empirical Distributions of Minimal Spanning Acycles and Persistence Diagrams of Random Complexes

open access: yesDiscrete Analysis, 2023
The Shadow Knows: Empirical Distributions of Minimal Spanning Acycles and Persistence Diagrams of Random Complexes, Discrete Analysis 2023:2, 18 pp. This paper deals with the following natural and important question.
Nicolas Fraiman   +2 more
doaj   +1 more source

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