Results 101 to 110 of about 2,352 (209)
Trigonometric derived rate of convergence of various smooth singular integral operators
Modern Mathematical MethodsIn this article, we continue the study of approximation of various smooth singular integral operators. This time the foundation of our research is a trigonometric Taylor’s formula.
George Anastassiou
doaj
Trigonometric approximation of functions in Lp-norm
Journal of Mathematical Analysis and Applications, 2002 This is a very nice paper.
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Wind Energy, Volume 29, Issue 7, July 2026.ABSTRACT The economic success of offshore wind energy projects relies on accurate projections of the construction and operations and maintenance (O&M) costs. These projections must consider the logistical complexities introduced by adverse met‐ocean conditions that can prohibit access to the offshore assets for sustained periods of time.
Cory Petersen +7 more
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Distributed Acoustic Sensing (DAS) Waveforms: Effects of Source Signature, Geometry, and Attenuation
Earth and Space Science, Volume 13, Issue 7, July 2026.Abstract Distributed acoustic sensing (DAS) records strain integrated over a finite gauge length depending on incidence angle, frequency, material velocities, fiber curvature, and gauge length. The DAS responses to a monofrequency plane wave of these are well understood.
Oumeng Zhang, Douglas R. Schmitt
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Equivalence between various Shape Preserving Approximations of periodic functions
Researches in MathematicsWe show that the validity of Jackson-type estimates in comonotone and coconvex approximations of continuous $2\pi$-periodic functions by trigonometric polynomials is equivalent to the validity of the corresponding estimates of approximation by continuous
D. Leviatan, O.V. Motorna, I.O. Shevchuk
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On Diophantine approximation and trigonometric polynomials [PDF]
Pacific Journal of Mathematics, 1959 openaire +3 more sources
Insights on Lightning‐Induced Remanent Magnetization From High‐Current Impulse Experiments
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.Abstract Lightning strikes generate intense transient magnetic fields capable of inducing strong and complex remanent magnetizations in rocks, potentially overprinting their original paleomagnetic record. To investigate the mechanisms and outcomes of lightning‐induced remanent magnetization, we conducted controlled high‐current impulse experiments on ...
M. De Andrade Nunes +5 more
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A unified analytical framework for Mössbauer synchrotron sources
Journal of Synchrotron Radiation, Volume 33, Issue 4, Page 931-938, July 2026.We present a unified analytical framework for Mössbauer synchrotron and X‐ray free‐electron laser sources that provides exact, rotationally invariant expressions for resonance energies and transition probabilities in mixed magnetic dipole–electric quadrupole interactions without Hamiltonian diagonalization.
Krzysztof R. Szymański
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Renormalization techniques for inflation systems and some of their applications
Acta Crystallographica Section A, Volume 82, Issue 4, Page 294-304, July 2026.In this work, renormalization methods for quantities related to the diffraction of inflation systems are surveyed.Exact renormalization techniques are important and powerful, particularly for inflation‐generated systems. We review recent results in this direction.
Michael Baake +4 more
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Automated Bandwidth Selection for Inference in Linear Models With Time‐Varying Coefficients
Journal of Time Series Analysis, Volume 47, Issue 4, Page 854-875, July 2026.ABSTRACT The problem of selecting the smoothing parameter, or bandwidth, for kernel‐based estimators of time‐varying coefficients in linear models with possibly endogenous explanatory variables is considered. We examine automated bandwidth selection by means of cross‐validation, a nonparametric variant of Akaike's information criterion, and bootstrap ...
Charisios Grivas, Zacharias Psaradakis
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