Results 101 to 110 of about 10,613 (298)
A maxmin principle for nonlinear eigenvalue problems with application to a rational spectral problem in fluid-solid vibration [PDF]
, 2002 summary:In this paper we prove a maxmin principle for nonlinear nonoverdamped eigenvalue problems corresponding to the characterization of Courant, Fischer and Weyl for linear eigenproblems.
Heinrich Voss, Voss, Heinrich
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Intraday Functional PCA Forecasting of Cryptocurrency Returns
Journal of Forecasting, EarlyView.ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley +1 more source
Global bifurcation result for the p-biharmonic operator
Electronic Journal of Differential Equations, 2001 We prove that the nonlinear eigenvalue problem for the p-biharmonic operator with $p > 1$, and $Omega$ a bounded domain in $mathbb{R}^N$ with smooth boundary, has principal positive eigenvalue $lambda_1$ which is simple and isolated.
Pavel Drabek, Mitsuharu Otani
doaj
Open Physics, 2019 The investigations of integrability, exact solutions and dynamics of nonlinear partial differential equations (PDEs) are vital issues in nonlinear mathematical physics.
Xu Bo, Zhang Sheng
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The bisection method for solving the nonlinear bar eigenvalue problem
, 2019 © Published under licence by IOP Publishing Ltd. In the present paper, the differential nonlinear eigenvalue problem describing longitudinal eigenvibrations of an elastic bar with elastically attached load to the bar end is considered.
Solov'Ev P., Solov'Ev S., Samsonov A.
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Forecasting With Dynamic Factor Models Estimated by Partial Least Squares
Journal of Forecasting, EarlyView.ABSTRACT Dynamic factor models (DFMs) have found great success in nowcasting and short‐term macroeconomic forecasting when incorporating large sets of predictive information. The factor loadings are typically estimated cross‐sectionally with principal component analysis (PCA) or maximum likelihood (ML), which ignore whether the factors have predictive ...
Samuel Rauhala
wiley +1 more source
The Sector Liquidity Timing Ability of Bond Mutual Funds
International Journal of Finance &Economics, EarlyView.ABSTRACT We investigate whether bond mutual fund managers exhibit market liquidity timing skills in the U.S. corporate bond market. At the portfolio level, we find only weak evidence that bond funds adjust their overall market exposure in anticipation of changes in corporate bond market liquidity.
Zhengnan Yin +3 more
wiley +1 more source
Electronic Journal of Differential Equations, 2017 We derive a priori bounds for positive supersolutions of $-\Delta_p u = \rho(x) f(u)$, where p >1 and $\Delta_p$ is the p-Laplace operator, in a smooth bounded domain of $\mathbb{R}^N$ with zero Dirichlet boundary conditions. We apply our results to
Asadollah Aghajani +1 more
doaj
Solving Large Scale Nonlinear Eigenvalue Problem in Next-Generation Accelerator Design
, 2006 A number of numerical methods, including inverse iteration, method of successive linear problem and nonlinear Arnoldi algorithm, are studied in this paper to solve a large scale nonlinear eigenvalue problem arising from finite element analysis of ...
Lee, Lie-Quan +3 more
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