9 research outputs found
On the associated spaces of the Hardy space
Characterizations of the associated spaces and second associated spaces of
the Hardy space on are given. Some results on the associated
spaces of the space are proved also
Origin of Thermal and Non-Thermal Hard X-ray Emission from the Galactic Center
We analyse new results of Chandra and Suzaku which found a flux of hard X-ray
emission from the compact region around Sgr A (r ~ 100 pc). We suppose
that this emission is generated by accretion processes onto the central
supermassive blackhole when an unbounded part of captured stars obtains an
additional momentum. As a result a flux of subrelativistic protons is generated
near the Galactic center which heats the background plasma up to temperatures
about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal
X-ray emission in the energy range above 10 keV.Comment: to be published in PASJ, v.61, No.5, 200
Весовые неравенства для квазилинейных интегральных операторов на полуоси и приложения к пространствам Лоренца
A precise characterization of inequalities in weighted Lebesgue spaces with positive quasilinear integral operators of iterative type on the half-axis is given. All cases of positive integration parameters are treated, including the case of supremum. Applications to the solution of the well-known problem of the boundedness of the Hardy-Littlewood maximal operator in weighted Lorentz Γ-spaces are given.Дается точная характеризация неравенств в весовых пространствах Лебега на полуоси с положительными квазилинейными интегральными операторами итерационного типа. Рассмотрены все варианты положительных параметров суммирования, включая супремальный случай. Дано приложение к решению известной задачи об ограниченности максимального оператора Харди–Литтлвуда в весовых Γ-пространствах Лоренца
Parametric interaction of gravity-capillary wave triads under radiation pressure of ultrasound
"Flora of Russia" on iNaturalist: a dataset
The "Flora of Russia" project on iNaturalist brought together professional scientists and amateur naturalists from all over the country. Over 10,000 people are involved in the data collection.Within 20 months the participants accumulated over 750,000 photo observations of 6,853 species of the Russian flora. This constitutes the largest dataset of open spatial data on the country’s biodiversity and a leading source of data on the current state of the national flora. About 85% of all project data are available under free licenses (CC0, CC-BY, CC-BY-NC) and can be freely used in scientific, educational and environmental activities