Results 31 to 40 of about 13,396 (146)

Comparison between Collocation Method and Chebyshev polynomial Method for Solving Abel Integral Equation

المجلة الليبية العالمية, 2022
In this paper will be compared between Collocation method and Chebyshev polynomial for solving Abel integral equation . Numerical examples are presented to illustrate the efficiency and accuracy of the proposed methods.
openaire   +1 more source

Massive Spanning Forests on the Complete Graph: Exact Distribution and Local Limit

Random Structures &Algorithms, Volume 68, Issue 2, March 2026.
ABSTRACT We provide new exact formulas for the distribution of massive spanning forests on the complete graph, which give also a new outlook on the celebrated special case of the uniform spanning tree. As a corollary we identify their local limit. This generalizes a well‐known theorem of Grimmett on the local limit of uniform spanning trees on the ...
Matteo D'Achille, Nathanaël Enriquez, Paul Melotti   +2 more
wiley   +1 more source

Climatology of Equatorial Plasma Bubbles: Role of Gravity Wave Seeding and Ionospheric Preconditioning

Space Weather, Volume 24, Issue 3, March 2026.
Abstract This study investigates the linkage between mesopause gravity waves and equatorial plasma bubbles (EPBs) from 2012 to 2015 using the collocated nightglow measurements, O2 (762 nm) and OI (630 nm), observed by the Visible and near‐Infrared Spectral Imager onboard the International Space Station under the Ionosphere, Mesosphere, upper Atmosphere,
Min‐Yang Chou, Yuta Hozumi, Jia Yue, Charles C. H. Lin, Akinori Saito, Takeshi Sakanoi   +5 more
wiley   +1 more source

Evaluating Allocations of Opportunities

International Economic Review, Volume 67, Issue 1, Page 365-397, February 2026.
ABSTRACT This paper provides a robust criterion for comparing lists of probability distributions—interpreted as allocations of opportunities—faced by different social groups. We axiomatically argue in favor of comparing those lists of probability distributions on the basis of a uniform—among groups—valuation of their expected utility.
Francesco Andreoli, Mathieu Faure, Nicolas Gravel, Tista Kundu   +3 more
wiley   +1 more source

Traveling-Wave Solutions of Several Nonlinear Mathematical Physics Equations

Mathematics
This paper deals with several nonlinear partial differential equations (PDEs) of mathematical physics such as the concatenation model (perturbed concatenation model) from nonlinear fiber optics, the plane hydrodynamic jet theory, the Kadomtsev ...
Petar Popivanov, Angela Slavova
doaj   +1 more source

Analytic continuation and fixed points of the Poincaré mapping for a polynomial Abel equation

Journal of the European Mathematical Society, 2008
We consider an Abel differential equation y'=p(x)y2+q(x)y3 with p(x) , q(x ...
Françoise, Jean-Pierre, Roytvarf, N., Yomdin, Y.   +2 more
openaire   +4 more sources

Global Phase Portraits for the Abel Quadratic Polynomial Differential Equations of the Second Kind With Z₂-symmetries [PDF]

Canadian Mathematical Bulletin, 2018
AbstractWe provide normal forms and the global phase portraits on the Poincaré disk for all Abel quadratic polynomial diòerential equations of the second kind with -symmetries.
Jaume Llibre, Claudia Valls
openaire   +1 more source

Does the Targeted Poverty Alleviation Program Reduce Income Inequality in China?

Review of Development Economics, Volume 30, Issue 1, Page 484-502, February 2026.
ABSTRACT This study evaluates the impact of the targeted poverty alleviation (TPA) program in 2015 on urban–rural income inequality, defined by the ratio between the urban and rural net income. The main findings suggest that the program reduces the income ratio in poverty counties by 3.6% relative to non‐poverty counties, which implies a discernible ...
Pu Sun
wiley   +1 more source

Asymptotic Properties for a General Class of Szász–Mirakjan–Durrmeyer Operators

Mathematical Methods in the Applied Sciences, Volume 49, Issue 2, Page 734-743, 30 January 2026.
ABSTRACT In this paper, we introduce a general family of Szász–Mirakjan–Durrmeyer type operators depending on an integer parameter j∈ℤ$$ j\in \mathbb{Z} $$. They can be viewed as a generalization of the Szász–Mirakjan–Durrmeyer operators, Phillips operators, and corresponding Kantorovich modifications of higher order.
Ulrich Abel, Ana‐Maria Acu, Margareta Heilmann, Ioan Rasa   +3 more
wiley   +1 more source

An Abel type cubic system

Electronic Journal of Differential Equations, 2015
We consider center conditions for plane polynomial systems of Abel type consisting of a linear center perturbed by the sum of 2 homogeneous polynomials of degrees n and 2n-1 where $n \ge 2$.
Gary R. Nicklason
doaj