The thesis proposes an adaptive numerical quadrature code on spherical polygons. This algorithm is based on quadrature formulas on spherical triangles with positive weights, recently introduced in the literature. In the Matlab implementation, starting from a subdivision of the domain into spherical triangles, it is refined in the zones where the error committed is greater, until a stopping test is satisfied. At the end of the work, numerical experiments show the goodness of the approach used.
Nell'elaborato viene proposto un codice numerico di cubatura adattiva su poligoni sferici. Tale algoritmo si basa su formule di cubatura su triangoli sferici con pesi positivi, recentemente introdotte in letteratura. Nell'implementazione in Matlab, partendo da una suddivisione del dominio in triangoli sferici, la si infittisce nelle zone dove l’errore compiuto è maggiore, finché un test di arresto viene soddisfatto. Alla fine del lavoro, esperimenti numerici mostrano la bontà dell’approccio utilizzato.
Cubatura adattiva su poligoni sferici
MIETTO, NICOLE
2023/2024
Abstract
The thesis proposes an adaptive numerical quadrature code on spherical polygons. This algorithm is based on quadrature formulas on spherical triangles with positive weights, recently introduced in the literature. In the Matlab implementation, starting from a subdivision of the domain into spherical triangles, it is refined in the zones where the error committed is greater, until a stopping test is satisfied. At the end of the work, numerical experiments show the goodness of the approach used.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/80260