Results 11 to 20 of about 3,222,670 (268)

DENSITY-LIKE AND GENERALIZED DENSITY IDEALS [PDF]

open access: yesThe Journal of Symbolic Logic, 2021
AbstractWe show that there exist uncountably many (tall and nontall) pairwise nonisomorphic density-like ideals on $\omega $ which are not generalized density ideals. In addition, they are nonpathological. This answers a question posed by Borodulin-Nadzieja et al. in [this Journal, vol. 80 (2015), pp. 1268–1289].
Adam Kwela, Paolo Leonetti
openaire   +3 more sources

THICKET DENSITY [PDF]

open access: yesThe Journal of Symbolic Logic, 2021
AbstractWe define a new type of “shatter function” for set systems that satisfies a Sauer–Shelah type dichotomy, but whose polynomial-growth case is governed by Shelah’s two-rank instead of VC dimension. We identify the least exponent bounding the rate of growth of the shatter function, the quantity analogous to VC density, with Shelah’s $\omega ...
openaire   +5 more sources

Densities, spectral densities and modality [PDF]

open access: yesThe Annals of Statistics, 2004
Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Statistics (http://www.imstat.org/aos/) at http://dx.doi.org/10.1214 ...
Davies, PL, Kovac, A
openaire   +7 more sources

Pair Densities in Density Functional Theory [PDF]

open access: yesMultiscale Modeling & Simulation, 2015
30 ...
Huajie Chen, Gero Friesecke
openaire   +3 more sources

Improving Results by Improving Densities: Density-Corrected Density Functional Theory

open access: yesJournal of the American Chemical Society, 2022
DFT calculations have become widespread in both chemistry and materials, because they usually provide useful accuracy at much lower computational cost than wavefunction-based methods. All practical DFT calculations require an approximation to the unknown exchange-correlation energy, which is then used self-consistently in the Kohn-Sham scheme to ...
Sim, Eunji   +3 more
openaire   +3 more sources

Current densities in density-functional theory [PDF]

open access: yesPhysical Review A, 2013
It is well known that any given density rho(x)can be realized by a determinantal wave function for N particles. The question addressed here is whether any given density rho(x) and current density j(x) can be simultaneously realized by a (finite kinetic energy) determinantal wave function.
Lieb, Elliott H., Schrader, Robert
openaire   +2 more sources

Refinements of the Density and J-Density Topologies [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
Given an arbitrary ideal J \mathcal {J} on the real numbers, two ...
Krzysztof Ciesielski, Lee Larson
openaire   +1 more source

Density-on-Density Regression

open access: yes, 2023
In this study, a density-on-density regression model is introduced, where the association between densities is elucidated via a warping function. The proposed model has the advantage of a being straightforward demonstration of how one density transforms into another.
Zhao, Yi   +4 more
openaire   +2 more sources

Metro and elderly health in Hong Kong: protocol for a natural experiment study in a high-density city

open access: yesBMJ Open, 2021
Introduction Public transport accessible to older people may offer a transformative solution to achieving healthy ageing. However, the evidence to support such transport infrastructure modifications is unclear.
Guibo Sun   +4 more
doaj   +1 more source

ANTIHYPERTENSIVE THERAPY IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: ADVANTAGES OF CALCIUM ANTAGONISTS

open access: yesРациональная фармакотерапия в кардиологии, 2016
Aim. To study effect of antihypertensive therapy with amlodipine maleat (Stamlo® M, “Dr. Reddy’s”, India) on morphofunctional heart indices, intensity of systemic inflammation and oxidative stress in patients with arterial hypertension (HT) with chronic ...
T. V. Adasheva   +5 more
doaj   +1 more source

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