Seminario del 2026

Marzo
24
Martedì
Ludovico Bruni Bruno
Seminario di analisi numerica
ore 12:00
presso Aula Vitali
Histopolation is an approximation procedure that replaces nodal evaluations with weaker functionals, such as integral data or averages. Histopolation naturally appears in many branches of numerical analysis: from finite volumes, finite elments and mimetic schemes to preconditioning. Despite this, histopolation is lesser-known than the more celebrated interpolation, mostly due to the lack of an approximation-theoretical approach in a classical sense. In fact, the definition and characterization of a Lebesgue constant for histopolation-based problems only dates back to 2024. It is thus after that year that such a machinery gained new interest and consolidated as an appropriate alternative to more popular projection techniques, such as interpolation or moments-based methods. In this talk we review the most important instances of histopolation, with a perspective on the well-posedness of the problem, its conditioning and its most relevant applications.

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