Search Results - "Khartov, A. A"

Asymptotics of Average Case Approximation Complexity for Tensor Products of Euler Integrated Processes by Kravchenko, A. A., Khartov, A. A.

“…Random fields that are tensor products of d Euler integrated processes are considered. The average case approximation complexity for a given random field is…”
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Quasi-Infinite Divisibility and Three-Point Probability Laws by Khartov, A. A., Alexeev, I. A.

“…Discrete three-point probability laws are considered. Necessary and sufficient conditions for belonging to a new class of quasi-infinitely divisible laws are…”
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A simplified criterion for quasi-polynomial tractability of approximation of random elements and its applications by Khartov, A.A.

“…We study approximation properties of sequences of centered random elements Xd, d∈N, with values in separable Hilbert spaces. We focus on sequences of tensor…”
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On Convergence and Compactness in Variation with a Shift of Discrete Probability Laws by Alexeev, I. A., Khartov, A. A.

“…We consider a class of discrete distribution functions whose characteristic functions are separated from zero, i.e., their absolute values are larger than a…”
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Decomposition of Additive Random Fields by Zani, M., Khartov, A. A.

“…We consider in this work an additive random field on [0, 1] d , which is a sum of d uncorrelated random processes. We assume that the processes have zero mean…”
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An Estimate of Average Case Approximation Complexity for Tensor Degrees of Random Processes by Kravchenko, A. A., Khartov, A. A.

“…We consider random fields that are tensor degrees of a random process of second order with a continuous covariance function. The average case approximation…”
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Characteristic Functions and Compactness of Distributions of Sums of Independent Random Variables by Khartov, A. A.

“…The sequences of distributions of centered sums of independent random variables are considered within the framework of the series scheme, without assuming the…”
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On weak convergence of quasi-infinitely divisible laws by Khartov, A. A

“…Pacific J. Math. 322 (2023) 341-367 We study a new class of so-called quasi-infinitely divisible laws, which is a wide natural extension of the well known…”
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A criterion of quasi-infinite divisibility for discrete laws by Khartov, A.A.

“…We consider arbitrary discrete probability laws on the real line. We obtain a criterion of their belonging to a new class of quasi-infinitely divisible laws,…”
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Compactness criteria for quasi-infinitely divisible distributions on the integers by Khartov, A.A.

“…We consider the class of quasi-infinitely divisible distributions. These distributions have appeared before in the theory of decompositions of probability…”
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Estimation of parameters of radio-frequency ion injector with an additional magnetostatic field by Akhmetzhanov, Ruslan V., Gordeev, Svyatoslav V., Kanev, Stepan V., Melnikov, Andrey V., Nazarenko, Igor P., Khartov, Sergey A.

“…The paper presents the results of theoretical study for the influence of an additional magnetostatic field applied to the radio-frequency discharge region on…”
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Asymptotic analysis in multivariate worst case approximation with Gaussian kernels by Khartov, A.A., Limar, I.A.

“…We consider a problem of approximation of d-variate functions defined on Rd which belong to the Hilbert space with tensor product-type reproducing Gaussian…”
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Spreading Features of SPT Jets in Vacuum Chamber by Nadiradze, A. B., Nazarenko, I. P., Khartov, S. A., Frolova, Yu. L.

“…Processes of accelerated ions attenuation due to the resonance charge exchange and elastic scattering processes are examined in the paper. In addition, we…”
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Radio-Frequency Ion Thruster with Additional Magnetic Field: Experimental Investigation by Melnikov, A. V., Khartov, S. A.

“…Performances of a radio-frequency ion thruster with an additional external magnetic field in the area of the high-frequency discharge are experimentally…”
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Air-Breathing Ramjet Electric Propulsion for Controlling Low-Orbit Spacecraft Motion to Compensate for Aerodynamic Drag by Erofeev, A. I., Nikiforov, A. P., Popov, G. A., Suvorov, M. O., Syrin, S. A., Khartov, S. A.

“…Problems on designing the air-breathing ramjet electric propulsion thruster for controlling loworbit spacecraft motion are examined in the paper. Information…”
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Asymptotic analysis in multivariate average case approximation with Gaussian kernels by Khartov, A.A., Limar, I.A.

“…We consider tensor product random fields Yd, d∈N, whose covariance functions are Gaussian kernels with a given sequence of length scale parameters. We…”
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Asymptotic analysis of average case approximation complexity of Hilbert space valued random elements by Khartov, A.A.

“…We study approximation properties of sequences of centered random elements Xd, d∈N, with values in separable Hilbert spaces. We focus on sequences of tensor…”
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Investigation of promising ceramic materials in discharge chambers of stationary plasma thrusters by Khartov, S. A., Shkarban, I. I.

“…The characteristics of the insulator wear process in the discharge chamber of a stationary plasma thruster (SPT) are analyzed. The results of studying the…”
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Development of the Radio-Frequency Ion Thruster on Atmospheric Gases by Kozhevnikov, V. V., Smirnov, P. E., Suvorov, M. O., Khartov, S. A.

“…The paper presents the results of the first experiments on the implementation of the concept of electric propulsion thrusters that use atmospheric gases as…”
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Solid nanomembrane manufacture using ion-plasma action by Mikheev, S. Yu, Shkarban, I. I., Ryzhov, Y. A., Khartov, S. A., Gorshkov, M. M., Markov, R. P.

“…A process of manufacture of porous membranes made of aluminum foil (Al 99.99%) by the method of electrochemical anodic oxidation followed by a continuous…”
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