Zobrazeno 1 - 10
of 986
pro vyhledávání: '"Mamonov, A. P."'
The paper addresses the problem of finding a low-rank approximation of a multi-dimensional tensor, $\Phi $, using a subset of its entries. A distinctive aspect of the tensor completion problem explored here is that entries of the $d$-dimensional tens
Externí odkaz:
http://arxiv.org/abs/2411.07151
We study the impact of exchange rate volatility on cost efficiency and market structure in a cross-section of banks that have non-trivial exposures to foreign currency (FX) operations. We use unique data on quarterly revaluations of FX assets and lia
Externí odkaz:
http://arxiv.org/abs/2408.05688
A space-time-parameters structure of parametric parabolic PDEs motivates the application of tensor methods to define reduced order models (ROMs). Within a tensor-based ROM framework, the matrix SVD - a traditional dimension reduction technique - yiel
Externí odkaz:
http://arxiv.org/abs/2311.07883
Publikováno v:
Дороги і мости, Vol 2023, Iss 28, Pp 38-46 (2024)
Introduction. The relevance of the research topic is due to the need to develop measures to ensure the development of construction enterprises (BE), using modern intellectual economic systems. Problem Statement. Proposed measures to ensure the dev
Externí odkaz:
https://doaj.org/article/8e956f3faee341798a99da47d455a2e7
For a nonlinear dynamical system that depends on parameters, the paper introduces a novel tensorial reduced-order model (TROM). The reduced model is projection-based, and for systems with no parameters involved, it resembles proper orthogonal decompo
Externí odkaz:
http://arxiv.org/abs/2302.08490
Waveform inversion is concerned with estimating a heterogeneous medium, modeled by variable coefficients of wave equations, using sources that emit probing signals and receivers that record the generated waves. It is an old and intensively studied in
Externí odkaz:
http://arxiv.org/abs/2302.05988
Autor:
Maxim Cheban, Serafima Filatova, Yaroslav Kravchenko, Konstantin Scherbakov, Dmitry Mamonov, Sergey Klimentov, Maxim Savinov, Maxim Chichkov
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 7, Pp 2775-2780 (2024)
Special methods for cleaning surfaces of stainless steel with a coating simulating radioactive contamination have been developed and studied. The removal of simulated surface contamination was performed using lasers in the micron spectral range with
Externí odkaz:
https://doaj.org/article/c0f1764dd26243ad922011fff82e8954
We study an inverse problem for the wave equation, concerned with estimating the wave speed, aka velocity, from data gathered by an array of sources and receivers that emit probing signals and measure the resulting waves. The typical mathematical for
Externí odkaz:
http://arxiv.org/abs/2208.11051
A novel approach to full waveform inversion (FWI), based on a data driven reduced order model (ROM) of the wave equation operator is introduced. The unknown medium is probed with pulses and the time domain pressure waveform data is recorded on an act
Externí odkaz:
http://arxiv.org/abs/2208.01209
Autor:
Z. R. Saptarova, A. A. Mamonov, S. A. Usmanov, A. A. Lutfullin, V. A. Sudakov, M. S. Shipaeva, A. A. Shakirov, S. A. Sitnov, V. A. Derevyanko
Publikováno v:
Georesursy, Vol 25, Iss 4, Pp 92-105 (2024)
The article provides an overview of ionmodified waterflooding technology, also known as low salinity, controlled salinity, or Smart water. This technology is currently considered one of the most promising approaches in the development of oil deposits
Externí odkaz:
https://doaj.org/article/0491a9bdad32426790713c529cbe9a0b