منابع مشابه
Best Basis Selection for Approximation in Lp
We study the approximation of a function class F in Lp by choosing first a basis B and then using n-term approximation with the elements of B. Into the competition for best bases we enter all greedy (i.e. democratic and unconditional [20]) bases for Lp. We show that if the function class F is well oriented with respect to a particular basis B then, in a certain sense, this basis is the best cho...
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ژورنال
عنوان ژورنال: Journal of Approximation Theory
سال: 1984
ISSN: 0021-9045
DOI: 10.1016/0021-9045(84)90034-0