Results 11 to 20 of about 18,960 (248)

Quasi-Packing Different Spheres with Ratio Conditions in a Spherical Container

open access: yesMathematics, 2023
This paper considers the optimized packing of different spheres into a given spherical container under non-standard placement conditions. A sphere is considered placed in the container if at least a certain part of the sphere is in the container. Spheres
Andreas Fischer   +4 more
doaj   +1 more source

On packing dimension preservation by distribution functions of random variables with independent Q˜-digits

open access: yesModern Stochastics: Theory and Applications, 2015
The article is devoted to finding conditions for the packing dimension preservation by distribution functions of random variables with independent $\tilde{Q}$-digits.
Oleksandr Slutskyi
doaj   +1 more source

Nucleon matrix element of Weinberg's CP-odd gluon operator from the instanton vacuum

open access: yesPhysics Letters B, 2021
We calculate the nucleon matrix element of Weinberg's dimension-6 CP-odd gluon operator fabc(F˜μν)a(Fμρ)b(Fρν)c in the instanton vacuum. In leading order of the instanton packing fraction, the dimension-6 operator is effectively proportional to the ...
C. Weiss
doaj   +1 more source

Billingsley’s packing dimension [PDF]

open access: yesProceedings of the American Mathematical Society, 2007
For a stochastic process on a finite state space, we define the notion of a packing measure based on the naturally defined cylinder sets. For any two measures ν \nu , γ \gamma , corresponding to the same stochastic process, if \[ F ⊆ { ω ∈ Ω :
openaire   +2 more sources

A Formula of Packing Pressure of a Factor Map

open access: yesEntropy, 2017
In this paper, using the notion of packing pressure, we show a formula of packing pressure of a factor map. We also give an application in conformal repellers.
Cao Zhao   +3 more
doaj   +1 more source

Symplectic Packing in Dimension 4 [PDF]

open access: yesGeometric And Functional Analysis, 1997
We discuss closed symplectic 4-manifolds which admit full symplectic packings by $N$ equal balls for large $N$'s. We give a homological criterion for recognizing such manifolds. As a corollary we prove that ${\Bbb C}P^2$ can be fully packed by $N$ equal balls for every $N\geq 9$.
openaire   +2 more sources

Packing dimension and Cartesian products [PDF]

open access: yesTransactions of the American Mathematical Society, 1996
We show that for any analytic set A A in R d \mathbf {R}^d , its packing dimension dim P ⁡ ( A ) \dim _{\mathrm {P}}(A) can be represented as
Bishop, Christopher J., Peres, Yuval
openaire   +2 more sources

Randomness extraction and asymptotic Hamming distance [PDF]

open access: yesLogical Methods in Computer Science, 2013
We obtain a non-implication result in the Medvedev degrees by studying sequences that are close to Martin-L\"of random in asymptotic Hamming distance. Our result is that the class of stochastically bi-immune sets is not Medvedev reducible to the class of
Cameron E. Freer, Bjoern Kjos-Hanssen
doaj   +1 more source

Patterns formed by chains of magnetic beads [PDF]

open access: yesEPJ Web of Conferences, 2021
Magnetic beads attract each other forming rather stable chains. We consider such chains formed by magnetic beads and push them into a Hele-Shaw cell either from the boundary or from the center.
Borges Danilo S.   +4 more
doaj   +1 more source

Generating dense packings of hard spheres by soft interaction design

open access: yesSciPost Physics, 2018
Packing spheres efficiently in large dimension $d$ is a particularly difficult optimization problem. In this paper we add an isotropic interaction potential to the pure hard-core repulsion, and show that one can tune it in order to maximize a lower ...
Thibaud Maimbourg, Mauro Sellitto, Guilhem Semerjian, Francesco Zamponi
doaj   +1 more source

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