Results 91 to 100 of about 6,915 (206)

Cohomogeneity‐one solitons in Laplacian flow: Local, smoothly‐closing and steady solitons

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We initiate a systematic study of cohomogeneity‐one solitons in Bryant's Laplacian flow of closed G2$\text{G}_2$‐structures on a 7‐manifold, motivated by the problem of understanding finite‐time singularities of that flow. Here, we focus on solitons with symmetry groups Sp(2)${\rm Sp}(2)$ and SU(3)${\rm SU}(3)$; in both cases, we prove the ...
Mark Haskins, Johannes Nordström
wiley   +1 more source

BOUND SOLITON STATES LOCALIZED NEAR DEFECT IN A NONLINEAR MEDIUM

open access: yesНаука. Инновации. Технологии, 2022
Introduction: the relevance of the study is due to the fact that the effects of localization of excitations near the interfaces of nonlinear media play an important role in various technical applications of solid-state and opto-electronics.
Sergey Evgenyevich Savotchenko
doaj  

Large Drifter Experiment in the Western Mediterranean Sea Reveals Dynamical Versus Noise Contributions in SWOT‐KaRIn Sea Level

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The wide‐swath altimeter Surface Water and Ocean Topography (SWOT) provides unprecedented two‐dimensional sea‐level observations, whose ability to capture upper‐ocean dynamics requires assessment. The dynamically balanced signal and noise contributions in SWOT‐KaRIn Level‐3 (L3) sea level products are here originally quantified and contrasted ...
Margot Demol   +9 more
wiley   +1 more source

On the Peculiar Properties of Extremely Low Frequency Lightning Generated Whistlers Detected at Low Earth Orbit Altitudes Close to the Magnetic Equator

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Lightning strikes generate broadband electromagnetic signals. At Extremely Low Frequencies (ELF), these signals partly leak into the ionosphere and produce so‐called Lightning Generated (LG) whistlers that the Absolute Scalar Magnetometers on board the ESA Swarm satellites can detect.
M. Jenner   +4 more
wiley   +1 more source

Evaluation of Air Temperature Uncertainty Estimates of the NOAA/CIRES/DOE 20th Century Reanalysis Over Greenland

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Due to the high sparsity of in situ observations, reanalysis data sets are often the only source of climate information for the 20th century, particularly in the Arctic. The NOAA/CIRES/DOE 20th Century Reanalysis v3 provides uncertainty estimates, whose reliability we evaluate by comparing with non‐assimilated daily and monthly historical air ...
S. Scher   +3 more
wiley   +1 more source

Solliton-like order parameter distributions in the critical region

open access: yesCondensed Matter Physics, 2006
Some exact one-component order parameter distributions for the Michelson thermodynamic potential are obtained. The phase transition of second kind in Ginzburg-Landau type model is investigated. The exact partial distribution of the order parameter in the
A.V.Babich   +3 more
doaj   +1 more source

Internal Wave Characteristics in the Andaman Sea: New Insights From SWOT Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract High‐resolution, repeat‐pass Sea Surface Height Anomaly (SSHA) observations from the Surface Water and Ocean Topography (SWOT) satellite are used to investigate Internal Solitary Waves (ISW) in the Andaman Sea over a one‐year period starting in July 2023. SWOT captured surface signatures of high‐amplitude ISW, with SSHA exceeding 20 cm.
Anup Kumar Mandal   +7 more
wiley   +1 more source

On the structure of the crown of a woody plant

open access: yesТрансформация экосистем
The crowns of trees of virginal and generative ontogenetic state of seven species of deciduous plants were studied: Ulmus glabra, Ulmus minor, Celtis sinensis, Zelkova carpinifolia, Aesculus hippocastanum, Fraxinus excelsior, in total more than 500 ...
I. S. Antonova   +2 more
doaj   +1 more source

Backscattering by Particles of Sizes <0.2 μm in Seawater

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We measured the angular scattering functions at 517 nm in different size fractions, including bulk and very small particles (VSP for diameters <0.2 μm), in a variety of waters ranging from coasts to open oceans and from surface to depths as deep as 3,000 m.
Xiaodong Zhang, Yuanheng Xiong
wiley   +1 more source

Deep Learning Enabled Ultrafast Optical Spectral Phase Retrieval via Unbalanced‐Intensity Autocorrelation

open access: yesNanophotonics, Volume 15, Issue 10, 27 May 2026.
Phase‐enabled nonlinear gating with unbalanced intensity (PENGUIN) enables reconstruction of the complete ultrafast optical field from one‐dimensional nonlinear interferometric autocorrelation traces. Combined with deep learning, the DeepPENGUIN framework enables real‐time spectral phase retrieval without spectrally resolved detection or iterative ...
Tae‐In Jeong   +4 more
wiley   +1 more source

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