Results 141 to 150 of about 6,054,073 (251)

Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function

open access: yesInternational Statistical Review, Volume 94, Issue 3, Page 738-768, December 2026.
Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler   +3 more
wiley   +1 more source

Greenland and Antarctica Dominate Recent Acceleration in Global Mean Sea Level Rise: 1993–2023

open access: yesGeophysical Research Letters, Volume 53, Issue 22, 28 November 2026.
Abstract Global mean sea level (GMSL) rise has accelerated over the last three decades, with satellite altimetry indicating an acceleration of 0.07 ± 0.03 mm/yr2 over 1993–2023. However, the specific contributions of Greenland and Antarctica to this acceleration budget have remained insufficiently quantified. We extend satellite gravimetry estimates of
Yufeng Nie   +6 more
wiley   +1 more source

Interplay Between Deep Convection and Mesoscale Gravity Waves

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 21, 16 November 2026.
Abstract Although the association between precipitation and mesoscale gravity waves (MGWs) is well documented, the feedback mechanisms governing their amplification remain difficult to isolate. This study uses convection‐permitting numerical simulations with 1–4 km grid spacing to investigate a complex MGW event that occurred over the south‐central ...
Ananya Sen   +2 more
wiley   +1 more source

Free transverse vibration analysis of Non-uniform Nano-Timoshenko beams rotating around two perpendicular axes using differential quadrature method. [PDF]

open access: yesSci Rep
Mohsen AM   +8 more
europepmc   +1 more source

Tensor‐Train Compression of a Volume Integral Eddy Current Problem in Discontinuous Galerkin

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 21, 15 November 2026.
ABSTRACT The paper presents a low‐rank tensor compression strategy based on the tensor‐train (TT) format for the integral operator arising in eddy current problems. Unlike classical matrix compression techniques such as the fast multipole method (FMM) or hierarchical matrices (ℋ$$ \mathscr{H} $$‐matrices), which typically compress only far‐field ...
Anthony Torosyan   +5 more
wiley   +1 more source

A Geometric Multigrid Preconditioner for Discontinuous Galerkin Shifted Boundary Method

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 21, 15 November 2026.
ABSTRACT I introduce a geometric multigrid preconditioner for the Shifted Boundary Method (SBM) designed to solve PDEs on complex geometries. While the SBM simplifies mesh generation by using a nonconforming background grid, it often results in nonsymmetric linear systems, a complete analysis of which is missing from the literature, especially with ...
Michał Wichrowski
wiley   +1 more source

Unified Pressure and Field Response Across Distinct Charge‐Order Regimes in Ti‐Doped CsV3Sb5

open access: yesAdvanced Functional Materials, Volume 36, Issue 91, 12 November 2026.
We microscopically investigate the interplay between charge order and superconductivity in a kagome superconductor across regimes of long‐ and short‐range charge order. Hydrostatic‐pressure and magnetic‐field μSR$\mu{\rm SR}$ measurements reveal remarkably similar superconducting and normal‐state time‐reversal‐symmetry‐breaking responses in both ...
P. Kral   +12 more
wiley   +1 more source

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