Results 131 to 140 of about 3,055 (272)

Adjoints of Polytopes: Determinantal Representations and Smoothness

open access: yes
31 pages, comments ...
Brüser, Clemens   +2 more
openaire   +2 more sources

On the Provision of International Public Goods in Dynamic Open Economies

open access: yesReview of International Economics, Volume 34, Issue 1, Page 198-218, February 2026.
ABSTRACT This study develops a dynamic two‐country model with an international public good, the stock of which positively affects the productivity of the private‐goods sectors in each country, and the evolution of the stock is determined by each country's voluntary contribution in the form of public investment. Two scenarios are examined: A cooperative
Akihiko Yanase
wiley   +1 more source

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

open access: yesGeophysical 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   +4 more
wiley   +1 more source

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

open access: yesGeophysical 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   +2 more
wiley   +1 more source

Isotopic lifting of Newtonian mechanics

open access: yesRevista Técnica de la Facultad de Ingeniería, 2011
We present a simple isotopic generalization of the ordinary differential calculus, here called isodifferential calculus, which is based on an axiom-preserving generalization of the unit with compatible generalizations of fields, vector spaces and ...
Ruggero Maria Santilli
doaj  

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