Results 1 to 10 of about 148,619 (281)
MULTIFRACTAL PHENOMENA AND PACKING DIMENSION [PDF]
We undertake a general study of multifractal phenomena for functions. We show that the existence of several kinds of multifractal functions can be easily deduced from an abstract statement, leading to new results.
Bayart, Frédéric, Heurteaux, Yanick
core +8 more sources
The sphere packing problem in dimension 24 [PDF]
Building on Viazovska's recent solution of the sphere packing problem in eight dimensions, we prove that the Leech lattice is the densest packing of congruent spheres in twenty-four dimensions and that it is the unique optimal periodic packing.
Cohn, H. +4 more
core +6 more sources
Randomness extraction and asymptotic Hamming distance [PDF]
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 +4 more sources
Packing-Dimension Profiles and Fractional Brownian Motion [PDF]
In order to compute the packing dimension of orthogonal projections Falconer and Howroyd (1997) introduced a family of packing dimension profiles ${\rm Dim}_s$ that are parametrized by real numbers $s>0$.
DAVAR KHOSHNEVISAN +4 more
core +5 more sources
Packing dimension of mean porous measures [PDF]
We prove that the packing dimension of any mean porous Radon measure on $\mathbb R^d$ may be estimated from above by a function which depends on mean porosity. The upper bound tends to $d-1$ as mean porosity tends to its maximum value.
Beliaev, D. +6 more
core +6 more sources
The fractal characteristics of cement-based materials with grinding aid via BSE image analysis [PDF]
Energy conservation and emission reduction are crucial for the cement industry to meet “carbon peak” and “carbon neutrality” targets, with a particular emphasis on grinding aids.
Chunfu Wang, Yuling Wang, Yunfeng Pan
doaj +2 more sources
The Second Generalization of the Hausdorff Dimension Theorem for Random Fractals
In this paper, we present a second partial solution for the problem of cardinality calculation of the set of fractals for its subcategory of the random virtual ones.
Mohsen Soltanifar
doaj +1 more source
Packing dimensions of basins generated by distributions on a finite alphabet
We consider a space of infinite signals composed of letters from a finite alphabet. Each signal generates a sequence of empirical measures on the alphabet and the limit set corresponding to this sequence.
Victor I. Bakhtin, Bruno Sadok
doaj +1 more source
Orthogonal Packings in Two Dimensions [PDF]
We consider problems of packing an arbitrary collection of rectangular pieces into an open-ended, rectangular bin so as to minimize the height achieved by any piece. This problem has numerous applications in operations research and studies of computer operation.
Baker, Brenda S. +2 more
openaire +1 more source
On the Fractal Measures and Dimensions of Image Measures on a Class of Moran Sets
In this work, we focus on the centered Hausdorff measure, the packing measure, and the Hewitt–Stromberg measure that determines the modified lower box dimension Moran fractal sets. The equivalence of these measures for a class of Moran is shown by having
Najmeddine Attia, Bilel Selmi
doaj +1 more source

