Results 51 to 60 of about 3,269 (139)

A Top‐Down View of Global and Regional Carbon Budgets From an Ensemble of Atmospheric Inversions

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Atmospheric inversions provide surface CO2 flux estimates based on in situ observed atmospheric CO2 mole fractions or satellite‐based column average CO2 (XCO2). Here, we provide a detailed assessment of 14 atmospheric CO2 inversions included in the Global Carbon Budget (GCB2024).
A. M. van der Woude, I. T. Luijkx, R. J. de Kok, W. Peters, F. Chevallier, C. Rödenbeck, P. Ciais, N. Chandra, K. Wang, R. Janardanan, H. van Asperen, A. Bastos, A. van den Berg, A. A. Bloom, S. Botía, K. Bowman, J. G. Canadell, R. A. F. de Souza, C. Q. Dias‐Junior, L. Feng, P. Friedlingstein, L. V. Gatti, E. Gloor, K. Ishijima, F. Jiang, Z. Jin, W. Ju, X. Lan, J. Liu, Z. Liu, T. Machida, S. Maksyutov, A. C. Manning, A. Martinez, G. A. Martins, K. McKain, J. B. Miller, L. Nayagam, Y. Niwa, P. I. Palmer, P. K. Patra, P. A. Pickers, B. Poulter, B. B. Stephens, C. Sweeney, S. Wofsy, Z. Wu, D. Yang, J. Yun, N. Zeng   +49 more
wiley   +1 more source

Asymptotics for the Spectrum of the Laplacian in Thin Bars with Varying Cross Sections

Mathematical Methods in the Applied Sciences, Volume 49, Issue 8, Page 8044-8060, 30 May 2026.
ABSTRACT We consider spectral problems for the Laplace operator in 3D rod structures with a small cross section of diameter O(ε)$$ O\left(\varepsilon \right) $$, ε$$ \varepsilon $$ being a positive parameter. The boundary conditions are Dirichlet (Neumann, respectively) on the bases of this structure, and Neumann on the lateral boundary.
Pablo Benavent‐Ocejo, Delfina Gómez, Maria‐Eugenia Pérez‐Martínez   +2 more
wiley   +1 more source

Assessing the Role of Tropical Cyclones on Drought Characteristics in the Hurricane Region of the Americas Between 1983 and 2024

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Droughts and tropical cyclones (TCs) are among the deadliest and costliest natural hazards and are expected to intensify in the twenty‐first century due to anthropogenic climate change. The Hurricane Region of the Americas (HRA), an area frequently affected by TCs and droughts, is home to some of the most vulnerable countries to these hazards ...
Dimitris A. Herrera, Christian Domínguez, Abel Centella, Ricardo Sánchez‐Murillo, Hugo G. Hidalgo, Benjamin I. Cook, Justin T. Maxwell, Diego Pons, Joshua C. Bregy, Maibys Sierra‐Lorenzo, Arnoldo Bezanilla, Carlos M. Carrillo, Yijie Zhu, Kelly Núñez Ocasio, Michael Taylor, Tannecia Stephenson, Jhordanne Jones, Jordyn Hammel, Karson Holliday   +18 more
wiley   +1 more source

Reducing Chaos and Bifurcations in Newton-Type Methods

Abstract and Applied Analysis, 2013
We study the dynamics of some Newton-type iterative methods when they are applied of polynomials degrees two and three. The methods are free of high-order derivatives which are the main limitation of the classical high-order iterative schemes.
S. Amat, S. Busquier, Á. A. Magreñán
doaj   +1 more source

Integral Involving Bessel Functions Arising in Propagation Phenomena

Mathematics, 2019
An new integral identity involving the product of two modified Bessel functions K 0 and K 1 , previously unreported, is presented and proved.
Yuri L. Ratis, Pedro Fernández de Córdoba, José María Isidro, Ramón Jaime   +3 more
doaj   +1 more source

A note on the rate of convergence for Chebyshev-Lobatto and Radau systems

Open Mathematics, 2016
This paper is devoted to Hermite interpolation with Chebyshev-Lobatto and Chebyshev-Radau nodal points. The aim of this piece of work is to establish the rate of convergence for some types of smooth functions.
Berriochoa Elías, Cachafeiro Alicia, Díaz Jaime, Martínez Eduardo   +3 more
doaj   +1 more source

On the van der Waals Gas, Contact Geometry and the Toda Chain

Entropy, 2018
A Toda–chain symmetry is shown to underlie the van der Waals gas and its close cousin, the ideal gas. Links to contact geometry are explored.
Diego Alarcón, P. Fernández de Córdoba, J. M. Isidro, Carlos Orea   +3 more
doaj   +1 more source

Entropy, Topological Theories and Emergent Quantum Mechanics

Entropy, 2017
The classical thermostatics of equilibrium processes is shown to possess a quantum mechanical dual theory with a finite dimensional Hilbert space of quantum states.
D. Cabrera, P. Fernández de Córdoba, J. M. Isidro, J. Vazquez Molina   +3 more
doaj   +1 more source

Rate of Convergence of Hermite-Fejér Interpolation on the Unit Circle

Journal of Applied Mathematics, 2013
The paper deals with the order of convergence of the Laurent polynomials of Hermite-Fejér interpolation on the unit circle with nodal system, the n roots of a complex number with modulus one.
E. Berriochoa, A. Cachafeiro, J. Díaz, E. Martínez-Brey   +3 more
doaj   +1 more source

Analysis of Fuzzy Vector Spaces as an Algebraic Framework for Flag Codes

Mathematics
Flag codes are a recent network coding strategy based on linear algebra. Fuzzy vector subspaces extend the notions of classical linear algebra. They can be seen as abstractions of flags to the point that several fuzzy vector subspaces can be identified ...
Carlos Bejines, Manuel Ojeda-Hernández, Domingo López-Rodríguez   +2 more
doaj   +1 more source