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Volume 10, Issue 2
High Order Mass-Lumping Finite Elements on Simplexes

Tao Cui, Wei Leng, Deng Lin, Shichao Ma & Linbo Zhang

Numer. Math. Theor. Meth. Appl., 10 (2017), pp. 331-350.

Published online: 2017-10

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  • Abstract

This paper is concerned with the construction of high order mass-lumping finite elements on simplexes and a program for computing mass-lumping finite elements on triangles and tetrahedra. The polynomial spaces for mass-lumping finite elements, as proposed in the literature, are presented and discussed. In particular, the unisolvence problem of symmetric point-sets for the polynomial spaces used in mass-lumping elements is addressed, and an interesting property of the unisolvent symmetric point-sets is observed and discussed. Though its theoretical proof is still lacking, this property seems to be true in general, and it can greatly reduce the number of cases to consider in the computations of mass-lumping elements. A program for computing mass-lumping finite elements on triangles and tetrahedra, derived from the code for computing numerical quadrature rules presented in [7], is introduced. New mass-lumping finite elements on triangles found using this program with higher orders, namely 7, 8 and 9, than those available in the literature are reported.

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@Article{NMTMA-10-331, author = {}, title = {High Order Mass-Lumping Finite Elements on Simplexes}, journal = {Numerical Mathematics: Theory, Methods and Applications}, year = {2017}, volume = {10}, number = {2}, pages = {331--350}, abstract = {

This paper is concerned with the construction of high order mass-lumping finite elements on simplexes and a program for computing mass-lumping finite elements on triangles and tetrahedra. The polynomial spaces for mass-lumping finite elements, as proposed in the literature, are presented and discussed. In particular, the unisolvence problem of symmetric point-sets for the polynomial spaces used in mass-lumping elements is addressed, and an interesting property of the unisolvent symmetric point-sets is observed and discussed. Though its theoretical proof is still lacking, this property seems to be true in general, and it can greatly reduce the number of cases to consider in the computations of mass-lumping elements. A program for computing mass-lumping finite elements on triangles and tetrahedra, derived from the code for computing numerical quadrature rules presented in [7], is introduced. New mass-lumping finite elements on triangles found using this program with higher orders, namely 7, 8 and 9, than those available in the literature are reported.

}, issn = {2079-7338}, doi = {https://doi.org/10.4208/nmtma.2017.s07}, url = {http://global-sci.org/intro/article_detail/nmtma/12349.html} }
TY - JOUR T1 - High Order Mass-Lumping Finite Elements on Simplexes JO - Numerical Mathematics: Theory, Methods and Applications VL - 2 SP - 331 EP - 350 PY - 2017 DA - 2017/10 SN - 10 DO - http://doi.org/10.4208/nmtma.2017.s07 UR - https://global-sci.org/intro/article_detail/nmtma/12349.html KW - AB -

This paper is concerned with the construction of high order mass-lumping finite elements on simplexes and a program for computing mass-lumping finite elements on triangles and tetrahedra. The polynomial spaces for mass-lumping finite elements, as proposed in the literature, are presented and discussed. In particular, the unisolvence problem of symmetric point-sets for the polynomial spaces used in mass-lumping elements is addressed, and an interesting property of the unisolvent symmetric point-sets is observed and discussed. Though its theoretical proof is still lacking, this property seems to be true in general, and it can greatly reduce the number of cases to consider in the computations of mass-lumping elements. A program for computing mass-lumping finite elements on triangles and tetrahedra, derived from the code for computing numerical quadrature rules presented in [7], is introduced. New mass-lumping finite elements on triangles found using this program with higher orders, namely 7, 8 and 9, than those available in the literature are reported.

Tao Cui, Wei Leng, Deng Lin, Shichao Ma & Linbo Zhang. (2020). High Order Mass-Lumping Finite Elements on Simplexes. Numerical Mathematics: Theory, Methods and Applications. 10 (2). 331-350. doi:10.4208/nmtma.2017.s07
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