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Komarov, M. V.

doi:10.1023/a:1019272332191

Cited by 5 publications

(6 citation statements)

References 3 publications

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“…Since the pioneering work of van't Hoff and Le Bel, 1 the understanding of the spatial arrangement of organic molecules has attracted considerable attention. 2 One of the most spectacular achievements is certainly the enforcement of inverted tetrahedral 3 as well as planar 4 geometries for tetracoordinate carbon compounds. Over the past twenty five years, heavier analogues of commonly found organic moieties have been the subject of numerous experimental and theoretical investigations.…”

Section: Introductionmentioning

confidence: 99%

Unusual geometries in main group chemistry

Bouhadir

Bourissou

2004

Chem. Soc. Rev.

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Over the past twenty five years, numerous heteroatom-containing analogues of classical organic moieties have been prepared and structurally characterized. The incorporation of group 13 to 15 heteroelements has often been reported to induce significant geometric distortions compared to the corresponding carbon compounds. These unusual geometries in main group derivatives are examined in this tutorial review, and the precise role of the heteroelements is discussed.

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Section: Introductionmentioning

confidence: 99%

Unusual geometries in main group chemistry

Bouhadir

Bourissou

2004

Chem. Soc. Rev.

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“…The chemical composition of two Praesepe stars was found via atmospherical modelling. The abundances of chemical elements in the atmospheres of K-giants were found to be close to those of the Sun (Komarov & Basak, 1993). The chemical composition of atmospheres of cool giant stars (Komarov, 1994), the effects of the diatomic molecules on the structure of the outer layers of cool giant stars (Komarov & Dulapchi 1994), the structure of the outer atmospheres of cool giant stars (Komarov & Shevchuk, 1995), the problems of determination of abundances in the atmospheres of K giant stars (Komarov et al, 1997a), the chemical abundances in the atmospheres of K giant stars (Komarov et al, 1997b) were investigated.…”

Section: Cool Starsmentioning

confidence: 86%

From Spectroscopy to the Chemical Evolution of the Galaxy. Part 1.

Mishenina

2022

OAP

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A brief review of the results obtained at Odesa Astronomical Observatory based on the stellar spectra analyses from 1892 to 2000 is presented. The review begins with the first observations of emission lines in solar prominences carried out in 1892 under the direction of Alexander Kononowitsch and includes an overview of spectrophotometric studies performed at the observatory using instruments and telescopes designed in- house; theoretical consideration of the issues of modelling physical conditions in stars and spectra simulation. It also describes the main results of the research of stars of various types, including cool giants K-, M spectral types, stars with various peculiarities of chemical composition, having enhanced lines of metals and CN bands, eclipsing binaries and binaries of different types, semi-regular and long-period variable stars, RR Lyraes, δ Scuti and λ Boötes stars, the diversity of Cepheids, blue stragglers in field and cluster populations, hot B Main-Sequence stars, etc., and finally, the enrichment with neutron-capture elements in the galactic stars.

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“…where s = const, = R const is the radius of the circumference where the solution is concentrated, = T const is a large parameter that allows us to describe solution of the Fisher-KPP equation at large times [29].…”

Section: ˙( ) ( )mentioning

confidence: 99%

Asymptotics semiclassically concentrated on curves for the nonlocal Fisher–Kolmogorov–Petrovskii–Piskunov equation

Levchenko

Шаповалов

Trifonov

2016

J. Phys. A: Math. Theor.

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In this paper we construct asymptotic solutions for the nonlocal multidimensional Fisher-Kolmogorov-Petrovskii-Piskunov equation in the class of functions concentrated on a one-dimensional manifold (curve) using a semiclassical approximation technique. We show that the construction of these solutions can be reduced to solving a similar problem for the nonlocal Fisher-Kolmogorov-Petrovskii-Piskunov in the class of functions concentrated at a point (zero-dimensional manifold) together with an additional operator condition. The general approach is exemplified by constructing a two-dimensional two-parametric solution, which describes quasi-steady-state patterns on a circumference.

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Cited by 5 publications

References 3 publications

Unusual geometries in main group chemistry

Unusual geometries in main group chemistry

From Spectroscopy to the Chemical Evolution of the Galaxy. Part 1.

Asymptotics semiclassically concentrated on curves for the nonlocal Fisher–Kolmogorov–Petrovskii–Piskunov equation

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