Results 81 to 90 of about 23,143 (202)

Stability properties of trigonometric interpolating operators

Mathematische Zeitschrift, 1973
Consider the space C of all 2π-periodic continuous real functions, and the subspace π of all n-th order trigonometric polynomials. The index n is held fixed, and the spaces are endowed with the usual supremum norm. Any operator L: C → π which can be written in the form \( Lx = \sum\limits_1^m {x({s_k}){y_k}} \) with 0 ≤ sk < 2≤ and yk e π is said to be
Morris, Peter D., Cheney, Elliott W.
openaire   +3 more sources

Rayleigh Waves From OHANA OBSs in the Northeast Pacific Ocean Reveal Low Deep Shear Velocities and Pervasive Azimuthal Anisotropy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The 2021–2023 OHANA ocean‐bottom seismometer deployment in the northeast Pacific Ocean provides a rich data set for seismic studies to explore the crust, lithosphere and asthenosphere in a 600 km wide region about 1,500 km northeast of Hawaii, west of the Moonless Mountains. The study area covers mainly 40‐to‐55 Myr‐old Pacific lithosphere.
Gabi Laske, Grace Atkisson, John A. Collins, Donna K. Blackman   +3 more
wiley   +1 more source

THREE-VARIABLE ALTERNATING TRIGONOMETRIC FUNCTIONS AND CORRESPONDING FOURIER TRANSFORMS

Acta Polytechnica, 2016
The common trigonometric functions admit generalizations to any higher dimension, the symmetric, antisymmetric and alternating ones. In this paper, we restrict ourselves to three dimensional generalization only, focusing on alternating case in detail ...
Agata Bezubik, Severin Pošta
doaj   +1 more source

European mistletoe shares a similar demographic strategy with non‐parasitic plants

Journal of Ecology, Volume 114, Issue 5, May 2026.
European mistletoe (Viscum album) does not have a distinct demographic strategy from non‐parasitic plants, as quantified by time‐based life history traits. We found that mistletoe vital rates were driven by mistletoe size and position in the host tree.
Oliver G. Spacey, Owen R. Jones, Sydne Record, Sharon D. Janssen, Arya Y. Yue, Wenyi Liu, Alice Rosen, Chris J. Thorogood, Roberto Salguero‐Gómez   +8 more
wiley   +1 more source

Transfinite Patches for Isogeometric Analysis

Mathematics
This paper extends the well-known transfinite interpolation formula, which was developed in the late 1960s by the applied mathematician William Gordon at the premises of General Motors as an extension of the pre-existing Coons interpolation formula. Here,
Christopher Provatidis
doaj   +1 more source

Low-Computational-Cost Hybrid FEM-Analytical Induction Machine Model for the Diagnosis of Rotor Eccentricity, Based on Sparse Identification Techniques and Trigonometric Interpolation. [PDF]

Sensors (Basel), 2021
Terron-Santiago C, Martinez-Roman J, Puche-Panadero R, Sapena-Bano A.   +3 more
europepmc   +1 more source

A formula of trigonometric interpolation [PDF]

Rendiconti del Circolo Matematico di Palermo, 1914
n ...
openaire   +1 more source

Electron microscopy‐based three‐dimensional subcellular imaging of plant male gametophyte

Journal of Integrative Plant Biology, Volume 68, Issue 5, Page 1290-1314, May 2026.
The Aquilos2 Cryo‐FIB workflows provide practical routes for cryo‐electron tomography and volume imaging in plant structural biology. ABSTRACT Understanding cellular events in three dimensions (3D) is of great importance for the annotation and illustration of biological processes in a contextual way. Imaging techniques based on electron microscopy (EM),
Zhiqi Liu, Zizhen Liang, Mengfei Liao, Yixin Huang, Rui Ma, Jiayang Gao, Weiqi Wang, Tao Ni, Philipp S. Erdmann, Liwen Jiang   +9 more
wiley   +1 more source

Littlewood, Paley and almost‐orthogonality: a theory well ahead of its time

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract The classic paper by Littlewood and Paley [J. Lond. Math. Soc. (1), 6 (1931), 230–233] marked the birth of Littlewood–Paley theory. We discuss this paper and its impact from a historical perspective, include an outline of the results in the paper and their subsequent significance in relation to developments over the last century, and set them ...
Anthony Carbery
wiley   +1 more source

Interpolation-based coordinate descent method for parameterized quantum circuits

Communications Physics
Parameterized quantum circuits (PQCs) are fundamental to many hybrid quantum-classical algorithms. However, existing structure-based optimizers for the training of PQCs, such as Rotosolve and sequential minimal optimization, rely on heuristic node ...
Zhijian Lai, Jiang Hu, Taehee Ko, Jiayuan Wu, Dong An   +4 more
doaj   +1 more source