Approximation on the regular hexagon
The degree of trigonometric approximation of continuous functions, which are periodic with respect to the hexagon lattice, is estimated in uniform and Hölder norms. Approximating trigonometric polynomials are matrix means of hexagonal Fourier series.
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| Format: | Article |
| Language: | English |
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Publishing House of the Romanian Academy
2020-12-01
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| Series: | Journal of Numerical Analysis and Approximation Theory |
| Online Access: | https://www.ictp.acad.ro/jnaat/journal/article/view/1229 |