Results 31 to 40 of about 356,435 (256)
Relaxation Oscillations in a System with Delays Modeling the Predator-Prey Problem
Моделирование и анализ информационных систем, 2013 A new asymptotic method for investigating complex relaxation oscillations of a system with delay was offered. Applying it, we can reduce the problem of predator-prey system dynamics to problem of one-dimensional maps analysis.
S. A. Kaschenko
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Mathematics, 2020 Let ( F n ) n ≥ 0 be the sequence of the Fibonacci numbers. The order (or rank) of appearance z ( n ) of a positive integer n is defined as the smallest positive integer m such that n divides F m .
Eva Trojovská
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Full Waveform Inversion Based on an Asymptotic Solution of Helmholtz Equation
Geosciences, 2023 This study considers the full waveform inversion (FWI) method based on the asymptotic solution of the Helmholtz equation. We provide frequency-dependent ray tracing to obtain the wave field used to compute the FWI gradient and calculate the modeled data.
Maxim Protasov +3 more
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The Exponentiated Power Alpha Index Generalized Family of Distributions: Properties and Applications
Mathematics, 2023 The study of hydrological characteristics has a vital role in designing, planning, and managing water resources. The selection of appropriate probability distributions and methods of estimations are basic elements in hydrology analyses.
Sajid Hussain +3 more
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The error term of the sum of digital sum functions, in arbitrary bases [PDF]
Notes on Number Theory and Discrete MathematicsLet k be a non-negative integer and p>1 be a positive integer. Let sₚ(k) be the sum of digits of k written in base p. In 1940, Bush proved that Aₚ(x)=Σₖ≤ₓsₚ(k) is asymptotic to ((p-1)/2)xlogₚx.
Erdenebileg Erdenebat, Ka Lun Wong
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Discovering asymptotic expansions for problems in mechanics using symbolic regression [PDF]
Recently, symbolic regression (SR) has demonstrated its efficiency for discovering basic governing relations in physical systems. A major impact can be potentially achieved by coupling symbolic regression with asymptotic methodology.
Abdusalamov, Rasul +2 more
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Effect of damage accumulation on the asymptotic behavior of stresses ahead the crack tip
Вестник Самарского университета: Естественнонаучная серия, 2023 The subject of this study is the analysis of mechanical fields associated with a crack tip under creep conditions, taking into account the phenomenon of damage accumulation.
Dmitriy V. Chapliy +2 more
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Basic asymptotic estimates for powers of Wallis’ ratios
Cubo, 2021 For any $a\in\R$, for every $n\in\N$, and for $n$-th Wallis' ratio $w_n:=\prod_{k=1}^n\frac{2k-1}{2k}$, the relative error $r_{\,\!_0}(a,n):=\big(v_{\,\!_0}(a,n)-w_n^a\big)/w_n^a$ of the approximation $w_n^a\approx v_{\,\!_0}(a,n):=(\pi n)^{-a/2} $ is ...
Vito Lampret
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Risks, 2018 In this paper, the risk model with constant interest based on an entrance process is investigated. Under the assumptions that the entrance process is a renewal process and the claims sizes satisfy a certain dependence structure, which belong to the ...
Hongmin Xiao, Lin Xie
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The asymptotic squeeze principle and the Binary Goldbach Conjecture : The asymptotic squeeze principle [PDF]
, 2023 In this paper, we prove the special squeeze principle for all sufficiently large n ∈ 2N.
Agama, Theophilus
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