Results 171 to 180 of about 278,137 (249)

Rigidity of anti‐de Sitter (2+1)‐spacetimes with convex boundary near the Fuchsian locus

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract We prove that globally hyperbolic compact anti‐de Sitter (2+1)‐spacetimes with a strictly convex spacelike boundary that is either smooth or polyhedral and whose holonomy is close to Fuchsian are determined by the induced metric on the boundary.
Roman Prosanov, Jean‐Marc Schlenker
wiley   +1 more source

Inverse Design of Ultrathin Metamaterial Absorber. [PDF]

Nanomaterials (Basel)
Jang E, Cho J, Kang C, Chung H.
europepmc   +1 more source

Wide‐Swath Satellite Altimetry Data Improves Modeled Mesoscale and Submesoscale Dynamics in a Western Boundary Current

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Ocean state estimates that represent mesoscale and submesoscale dynamics are crucial for climate research and ocean forecasting. Accurate submesoscale representation in ocean models is a current challenge due to rapidly evolving flow and lack of observations at suitable scales.
C. Kerry, S. R. Keating, M. Roughan, M. Azaneu, G. B. Brassington   +4 more
wiley   +1 more source

Analysis and optimal control of a fractional order influenza epidemic model. [PDF]

Sci Rep
Zahra F, Li Z, Al-Ahmari A.
europepmc   +1 more source

Evaluating Machine Learning Weather Models for Data Assimilation: Fundamental Limitations in Tangent Linear and Adjoint Properties

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Machine learning (ML) weather models like GraphCast and NeuralGCM show forecasting promise but face fundamental limitations for data assimilation (DA) integration. This study reveals critical problems in error covariance representation and adjoint sensitivity patterns challenging their operational viability.
Xiaoxu Tian, Daniel Holdaway, Daryl Kleist   +2 more
wiley   +1 more source

Efficient event-based delay learning in spiking neural networks. [PDF]

Nat Commun
Mészáros B, Knight JC, Nowotny T.
europepmc   +1 more source

Modal Interference Drives Madden‐Julian Oscillation Evolution and Predictability

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract A data‐driven dynamical filter is developed to characterize Madden‐Julian Oscillation (MJO) variability, by representing tropical variability with nonorthogonal empirical‐dynamical modes that allow for constructive and destructive interference.
David H. Marsico, John R. Albers, Matthew Newman, Maria Gehne, Juliana Dias, George N. Kiladis, Emerson LaJoie, Yan Wang   +7 more
wiley   +1 more source

Inverse-designed metasurfaces for wavefront restoration in under-display camera systems. [PDF]

Nanophotonics
Jo J, Lee M, Lee S, Bae M, Kang C, Chung H.   +5 more
europepmc   +1 more source

Abstract Boundary Delay Systems and Application to Network Flow

Mathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 119-129, 15 January 2026.
ABSTRACT This paper investigates the well‐posedness and positivity of solutions to a class of delayed transport equations on a network. The material flow is delayed at the vertices and along the edges. The problem is reformulated as an abstract boundary delay equation, and well‐posedness is proved by using the Staffans–Weiss theory.
András Bátkai, Marjeta Kramar Fijavž, Abdelaziz Rhandi   +2 more
wiley   +1 more source

Categories of Orthosets and Adjointable Maps. [PDF]

Int J Theor Phys (Dordr)
Paseka J, Vetterlein T.
europepmc   +1 more source