Isomorphism of spaces of analytic functions on n-circular domains

The space A(D) of all analytic functions in a complete n-circular do- main D in Cn; n 2; is considered with a natural Fréchet topology. Some su¢ cient conditions for the isomorphism of such spaces are ob- tained in terms of certain subtle geometric characteristic of domains D. This investigation complements essentially the second authors result [8] on necessary geometric conditions of such isomorphisms

Constraints on a scalar-pseudoscalar Higgs mixing at future e+e- colliders: an update

We perform an update of our previous analysis on the constraints on possible deviations of Hbb coupling from its Standard Model value, arising from a scalar-pseudoscalar mixing. In this paper we include a complete simulation of the process e+ e- -> b bbar e+ e- and combine it with our previous results to obtain tighter bounds on the deviations of the parameters describing this coupling that could be measured at the Next Linear Collider.Comment: 3 pages, 2 figures, to be submitted to Phys. Rev.

Multirectangular invariants for power Köthe spaces

Using some new linear topological invariants, isomorphisms and quasidiagonal isomorphisms are investigated on the class of first type power Köthe spaces [Proceedings of 7th Winter School in Drogobych, 1976, pp. 101–126; Turkish J. Math. 20 (1996) 237–289; Linear Topol. Spaces Complex Anal. 2 (1995) 35–44]. This is the smallest class of Köthe spaces containing all Cartesian and projective tensor products of power series spaces and closed with respect to taking of basic subspaces (closed linear hulls of subsets of the canonical basis). As an application, it is shown that isomorphic spaces from this class have, up to quasidiagonal isomorphisms, the same basic subspaces of finite (infinite) type

Hydroclimatic development and anthropogenic impact on sediment loads in the Selenga catchment

The present study focuses on the relationships between fluvial processes, climate and land-use changes in the Selenga River catchment. The results indicate that high sediment loads were reported both for altered and natural rivers. The reported multidecadal declines in sediment loads in the downstream part of the Selenga River can be attributed to the abandonment of cultivated lands and changing hydroclimatic factors, in particular a climate-driven decrease in water flows and intensified water use for irrigation purposes. Empirical sediment rating curves show that a series of peak flow events during spring and summer contributes to the main part (up to 98%) of the annual sediment and pollution loads. The highest contribution of flood sediment loads was determined for specific wet years and the lowest – for dry years, which generally reflects the increase in water runoff during high floods in the annual flow. While sediment flows are connected with hydroclimatic conditions in the catchment, the elemental composition of mass flows is mostly related to soil/petrologic conditions. With the exception of small impacted rivers where water quality effects associated with mining were observed, the formation of elemental composition and sediment-associated chemical constituents generally reflects catchment characteristics

Channel processes and its management on navigable rivers

Inland waterways are the sector of the economy that is most dependent on channel processes and their management to ensure safety and favourable conditions for navigation. The main goals of the river channel management are to improve the waterways in terms of navigation and, at the same time, to preserve the rivers as natural sites. The presented study defines the criteria for classification of rivers and river sections according to the complexity of channel processes, their forecasting and management. The classification of rivers as waterways has been provided based on the complexity of channel process management and designing of dredging works and investments aimed at improving the navigation conditions. Examples of this approach are given based on specific rivers of Russia

Modeling of the heliospheric interface: multi-component nature of the heliospheric plasma

We present a new model of the heliospheric interface - the region of the solar wind interaction with the local interstellar medium. This new model performs a multi-component treatment of charged particles in the heliosphere. All charged particles are divided into several co-moving types. The coldest type, with parameters typical of original solar wind protons, is considered in the framework of fluid approximation. The hot pickup proton components created from interstellar H atoms and heliospheric ENAs by charge exchange, electron impact ionization and photoionization are treated kinetically. The charged components are considered self-consistently with interstellar H atoms, which are described kinetically as well. To solve the kinetic equation for H atoms we use the Monte Carlo method with splitting of trajectories, which allows us 1) to reduce statistical uncertainties allowing correct interpretation of observational data, 2) to separate all H atoms in the heliosphere into several populations depending on the place of their birth and on the type of parent protons.Comment: A&A accepte

On basis structure of power Köthe spaces of the first type

It is proved that Montel power Köthe spaces of the first type [5,8] have the structure of basis subspaces of the finite or infinite type invariant under isomorphisms, which strengthens authors’ previous results (joint with T. Terzioğlu) [18,19]. The main tools are special compound linear topological invariants, which evaluate classical geometric characteristic (namely inverse Bernstein diameters) of certain invariant multi-parameter constructions built from given bases of neighborhoods or bounded sets

Short-term dynamics of river water turbidity

An overview of the recently collected datasets of highly discrete water turbidity measurements has allowed for the first hydrological and geographical analysis of short-term fluctuations in water turbidity and the composition of suspended sediments. The novel methodology has been developed to estimate a value of TI, which is the ratio of the difference between the maximum and minimum turbidity for a short period of time (ΔTi) (1 hour with the measurement frequency of 20 minutes) and the total turbidity difference for the water regime phase under study (ΔT HE ). Higher TI values correspond to a greater contribution of diurnal (20-minute) turbidity fluctuations to the seasonal variability of sediment yield. Rivers have been grouped according to the value of water turbidity fluctuations within one hour (20-minute): glacier-fed rivers (the Tarfala, the Dzhankuat) (TI amounts to 0.17-0.22); volcanic rivers (0.22–0.25) and lowland rivers (the Selenga, the Western Dvina) (0.09