Zobrazeno 1 - 10 of 27 pro vyhledávání: '"M. G. Pleshakov"'
1
Convergence Analysis of Penalty Decomposition Algorithm for Cardinality Constrained Convex Optimization in Hilbert Spaces
Autor: M. G. Pleshakov, Sergei P. Sidorov, Kirill Spiridonov
Publikováno v: Mathematical Optimization Theory and Operations Research ISBN: 9783030499877
MOTOR
The paper examines an algorithm for finding approximate sparse solutions of convex cardinality constrained optimization problem in Hilbert spaces. The proposed algorithm uses the penalty decomposition (PD) approach and solves sub-problems on each ite
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::793a1b9a18de001ae7fc18297825e457
https://doi.org/10.1007/978-3-030-49988-4_10
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2
Dual Convergence Estimates for a Family of Greedy Algorithms in Banach Spaces
Autor: M. G. Pleshakov, Sergei V. Mironov, Sergei P. Sidorov
Publikováno v: Lecture Notes in Computer Science ISBN: 9783319729251
MOD
The paper examines four weak relaxed greedy algorithms for finding approximate sparse solutions of convex optimization problems in a Banach space. First, we present a review of primal results on the convergence rate of the algorithms based on the geo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7855469d3758a2f4430ea3d1ba0ff770
https://doi.org/10.1007/978-3-319-72926-8_10
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4
Food Chain Analysis Based on Graph Centrality Indicators
Autor: M. G. Pleshakov, Ekaterina Mosolova, Victor Kolesnikov, Alexey Faizliev, Sergei V. Mironov, Sergei P. Sidorov, Maria Zemlyanskaya, Vasily Anikin
Publikováno v: Journal of Physics: Conference Series. 1334:012004
The knowledge of the structure and complexity of the food web is central for a better understanding of the ecosystem functioning. The food web analysis examines both species and energy flows among them, providing a natural basis for characterizing th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05cad2e008f129425d51f9bdb4dc0b7a
https://doi.org/10.1088/1742-6596/1334/1/012004
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5
Comonotone approximation of periodic functions
Autor: M. G. Pleshakov, G. A. Dzyubenko
Publikováno v: Mathematical Notes. 83:180-189
Suppose that a continuous 2π-periodic function f on the real axis ℝ changes its monotonicity at different ordered fixed points yi ∈ [− π, π), i = 1, …, 2s, s ∈ ℕ. In other words, there is a set Y:= {yi}i∈ℤ of points yi = yi+2s + 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e37baf0ea036a3ab435a111933329b2b
https://doi.org/10.1134/s0001434608010203
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7
Second Jackson Inequality in a Sign-Preserving Approximation of Periodic Functions
Autor: P. A. Popov, M. G. Pleshakov
Publikováno v: Ukrainian Mathematical Journal. 56:153-160
We consider a 2π-periodic function f continuous on \(\mathbb{R}\) and changing its sign at 2s points yi ∈ [−π, π). For this function, we prove the existence of a trigonometric polynomial Tn of degree ≤n that changes its sign at the same poin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b63705a3c9d3cdf542829e040368c691
https://doi.org/10.1023/b:ukma.0000031710.44467.5e
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8
Piecewise Coapproximation and the Whitney Inequality
Autor: M. G. Pleshakov, A. V. Shatalina
Publikováno v: Journal of Approximation Theory. 105(2):189-210
All cases of the validity of the piecewise q-monotone analog of the Whitney inequality are clarified. For similar analogs of the Jackson inequality negative results are proved.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb04d458244d388370ce69e62af62b02
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