Harmonic functions with polynomial growth on lattice points
β Scribed by D.H Armitage
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 333 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0021-9045
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π SIMILAR VOLUMES
A growth lemma for certain discrete symmetric Laplacians defined on a lattice Z d Ξ΄ = Ξ΄Z d β R d with spacing Ξ΄ is proved. The lemma implies a De Giorgi theorem, that the harmonic functions for these Laplacians are equi-HΓΆlder continuous, Ξ΄ β 0. These results are then applied to establish regularity
We consider the distribution of alternation points in best real polynomial approximation of a function f # C[&1, 1]. For entire functions f we look for structural properties of f that will imply asymptotic equidistribution of the corresponding alternation points.