Parameters and solutions of linear and nonlinear oscillators by Rina Ling

“…Relationship between existence of solutions for certain classes of nonlinear boundary value problems and the smallest or the largest eigenvalue of the corresponding linear problem is obtained. Behavior of the solutions, as the parameter increases, is also studied.…”
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Sieve Method for Polynomial Linear Equivalence by Baocang Wang, Yupu Hu

“…We consider the polynomial linear equivalence (PLE) problem arising from the multivariate public key cryptography, which is defined as to find an invertible linear transformation ℒ satisfying 𝒫=𝒮∘ℒ for given nonlinear polynomial maps 𝒫 and 𝒮 over a finite field 𝔽q. …”
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FINANCING OF LINEAR ROAD INFRASTRUCTURE IN POLAND by Stanisław Bereziński, Tomasz Rokicki

“…The comparative method was used in the paper, dynamics indicators were evaluated, the Gini concentration coefficient was calculated and the degree of concentration was presented using the Lorenz curve. Pearson's linear correlation coefficients were also used. A descriptive, tabular and graphic method were used to present the results. …”
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Some recent developments on linear determinacy by Carlos Castillo-Chavez, Bingtuan Li, Haiyan Wang

“…Quantitatively, a crucial measure of species' invasiveness is given by the rate at which it spreads into new open environments. The so-called``linear determinacy'' conjecture equates full nonlinearmodel spread rates with the spread rates computed from linearized systems with the linearization carried out around the leadingedge of the invasion. …”
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Metacavities by harnessing the linear-crossing metamaterials by Wu Jiaju, Guo Zhiwei, Qi Xin, Wei Qian, He Li, Fang Kai, Sun Yong, Li Yunhui, Chen Yuguang, Jiang Haitao, Chen Hong

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On identification methods of linear regression models by Romualdas Salėtis

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Generalized Quadratic Linearization of Machine Models by Parvathy Ayalur Krishnamoorthy, Kamaraj Vijayarajan, Devanathan Rajagopalan

“…In the exact linearization of involutive nonlinear system models, the issue of singularity needs to be addressed in practical applications. …”
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An Extension of Hypercyclicity for N-Linear Operators by Juan Bès, J. Alberto Conejero

“…We propose an alternative notion of orbit for N-linear operators that is inspired by difference equations. …”
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Static Consensus in Passifiable Linear Networks by Ibragim A. Junussov

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On Local Linear Approximations to Diffusion Processes by X. L. Duan, Z. M. Qian, W. A. Zheng

“…Shoji and Ozaki (1998; see also Shoji and Ozaki (1995) and Shoji and Ozaki (1997)) proposed a simple local linear approximation. In this paper, among other things, we show that Shoji's local linear Gaussian approximation indeed yields a good MLE.…”
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On the Stability of Self-Adjointness of Linear Relations by Yan Liu

“…This paper focuses on the stability of self-adjointness of linear relations under perturbations in Hilbert spaces. …”
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Network element methods for linear elasticity by Coatléven, Julien

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On the Measurement of the (Non)linearity of Costas Permutations by Konstantinos Drakakis

“…We study several criteria for the (non)linearity of Costas permutations, with or without the imposition of additional algebraic structure in the domain and the range of the permutation, aiming to find one that successfully identifies Costas permutations as more nonlinear than randomly chosen permutations of the same order.…”
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Approximation Strategy by Positive Linear Operators by Wei Xiao

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Exponential Inequalities for Positive Linear Mappings by Mohammad Sababheh, Hamid Reza Moradi, Shigeru Furuichi

“…In this article, we present exponential-type inequalities for positive linear mappings and Hilbert space operators, by means of convexity and the Mond-Pečarić method. …”
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Air Gauge Characteristics Linearity Improvement by Cz. J. Jermak, M. Jakubowicz, J. Dereżyński, M. Rucki

“…This paper discusses calibration uncertainty and linearity issues of the typical back-pressure air gauge. …”
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FINANCING OF LINEAR ROAD INFRASTRUCTURE IN POLAND by Stanisław Bereziński, Tomasz Rokicki

“…The comparative method was used in the paper, dynamics indicators were evaluated, the Gini concentration coefficient was calculated and the degree of concentration was presented using the Lorenz curve. Pearson's linear correlation coefficients were also used. A descriptive, tabular and graphic method were used to present the results. …”
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Linear and Non-linear Relationships Between Shares of the Agri-food Industries of the Warsaw Stock Exchange. Risk Aspect by Jacek Pera

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On the stability of the linear delay differential and difference equations by A. Ashyralyev, P. E. Sobolevskii

“…We consider the initial-value problem for linear delay partial differential equations of the parabolic type. …”
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An Iterative Decomposed Piecewise-Linear Model Description by Victor Jimenez-Fernandez, Luis Hernandez-Martinez, Arturo Sarmiento-Reyes

“…A model description for the representation of one-dimensional piecewise-linear characteristics is presented. The model can be denoted as a decomposed one, because the independent and dependent variables of the PWL characteristic are treated separately. …”
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