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The Eigenvalues of an Equilateral Triangle

✍ Scribed by Pinsky, Mark A.


Book ID
118200846
Publisher
Society for Industrial and Applied Mathematics
Year
1980
Tongue
English
Weight
713 KB
Volume
11
Category
Article
ISSN
0036-1410

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## Abstract In a two‐dimensional space of points on an equilateral triangle grid, a single difference equation holding at each node is found from the finite element formulation of the wave equation for all published polynomial orders of the functional expansion. Assuming homogeneous boundary condit