Haku
Aineistot 1251-1260 / 5692
Dimension estimates for the boundary of planar Sobolev extension domains
(Walter de Gruyter GmbH, 2023)
We prove an asymptotically sharp dimension upper-bound for the boundary of bounded simply-connected planar Sobolev W1,pW1,p -extension domains via the weak mean porosity of the boundary. The sharpness of our estimate is ...
Dimension estimates on circular (s,t)-Furstenberg sets
(Suomen matemaattinen yhdistys ry, 2023)
Tässä työssä osoitetaan, että tason R2Furstenbergin (s,t)-ympyräjoukkojen Hausdorffin ulottuvuus on vähintään max{t3+s,(2t+ 1)s−t} kaikilla 0< s,t≤1. Tämä tulos yleistää Wolffin aiemmin todistamia Kakeyan ympyräjoukkojen ...
Dimension Estimation in Two-Dimensional PCA
(IEEE; University of Zagreb, 2021)
We propose an automated way of determining the optimal number of low-rank components in dimension reduction of image data. The method is based on the combination of two-dimensional principal component analysis and an ...
Dimension of self-affine sets for fixed translation vectors
(Oxford University Press, 2018)
An affine iterated function system is a finite collection of affine invertible contractions
and the invariant set associated to the mappings is called self-affine. In 1988, Falconer proved
that, for given matrices, the ...
Dimension Reduction for Time Series in a Blind Source Separation Context Using R
(Foundation for Open Access Statistic, 2021)
Multivariate time series observations are increasingly common in multiple fields of science but the complex dependencies of such data often translate into intractable models with large number of parameters. An alternative ...
Dimensions of random affine code tree fractals
(Cambridge University Press; London Mathematical Society, 2014)
We calculate the almost sure Hausdorff dimension for a general class
of random affine planar code tree fractals. The set of probability measures describing
the randomness includes natural measures in random V -variable ...
Dimeric iodine(i) and silver(i) cages from tripodal N-donor ligands <i>via</i> the [N–Ag–N]+ to [N–I–N]+ cation exchange reaction
(Royal Society of Chemistry (RSC), 2022)
The directionality of the [N–I–N]+ halogen bond makes iodine(I) ions impeccable tools in the design and construction of [N–I–N]+ halogen-bonded assemblies. The synthesis of dimeric iodine(I) cages with imidazole-derived ...
Dimers of the Higher-Energy Conformer of Formic Acid: Experimental Observation
(ACS, 2012)
We report on the first experimental observation of formic acid dimers composed of two molecules of the higher-energy cis conformer. The cis–cis formic acid dimers are prepared in an argon matrix by selective vibrational ...
Dioxidomolybdenum(VI) and -tungsten(VI) complexes with tetradentate amino bisphenolates as catalysts for epoxidation
(Elsevier Ltd., 2017)
Sixteen molybdenum and tungsten complexes with tripodal or linear tetradentate amino bisphenol ligands were studied as catalysts for the epoxidation of cis-cyclooctene, 1-octene, styrene, limonene and α-terpineol. These ...
Dioxidomolybdenum(VI) and -tungsten(VI) Complexes with Tripodal Amino Bisphenolate Ligands as Epoxidation and Oxo-transfer Catalysts
(Elsevier Ltd., 2017)
The molybdenum(VI) and tungsten(VI) complexes [MO2(L)] (M = Mo (1), W (2), H2L = bis(2-hydroxy-3,5-di-tert-butybenzyl)morpholinylethylamine) were synthesized and the complexes were used to catalyze oxotransfer reactions, ...