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A unified approach to certain problems of best local approximation |
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| Authors: | H. H. Cuenya M. D. Lorenzo C. N. Rodriguez |
| Affiliation: | (1) Departamento de Matemática, Universidad Nacional de Rio Cuarto, 5800 Rio Cuarto, Argentina |
| Abstract: | In this paper we study best local quasi-rational approximation and best local approximation from finite dimensional subspaces of vectorial functions of several variables.Our approach extends and unifies several problems concerning best local multi-point approximation in different norms. |
| Keywords: | best local approximation quasi-rational approximation general norms APPROXIMATION LOCAL BEST PROBLEMS approach problems concerning different norms paper study best local approximation finite subspaces functions variables |
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