Several new quadrature formulas for polynomial integration in the triangle
We present several new quadrature formulas in the triangle for exact integration of polynomials. The points were computed numerically with a cardinal function algorithm which imposes that the number of quadrature points $N$ be equal to the dimension of a lower dimensional polynomial space. Quadratur...
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Zusammenfassung: | We present several new quadrature formulas in the triangle for exact
integration of polynomials. The points were computed numerically with a
cardinal function algorithm which imposes that the number of quadrature points
$N$ be equal to the dimension of a lower dimensional polynomial space.
Quadrature forumulas are presented for up to degree $d=25$, all which have
positive weights and contain no points outside the triangle. Seven of these
quadrature formulas improve on previously known results. |
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DOI: | 10.48550/arxiv.math/0501496 |