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Määritelmät

Substantiivi

  1. (mathematics) A type of convergence of a sequence of functions { f'ₙ }, in which the speed of convergence of f'ₙ(x) to f(x) does not depend on x.

Taivutusmuodot

Monikkouniform convergences

(mathematics) A type of convergence of a sequence of functions { f'ₙ }, in which the speed of convergence of f'ₙ(x) to f(x) does not depend on x.

A sequence of functions ( f n ) {\displaystyle (f_{n})} converges uniformly to f {\displaystyle f} when for arbitrary small ε {\displaystyle \varepsilon } there is an index N {\displaystyle N} such that the graph of f n {\displaystyle f_{n}} is in the ε {\displaystyle \varepsilon } -tube around f {\displaystyle f} whenever n N . {\displaystyle n\geq N.}

(mathematics) A type of convergence of a sequence of functions { f'ₙ }, in which the speed of convergence of f'ₙ(x) to f(x) does not depend on x.

Counterexample to a strengthening of the uniform convergence theorem, in which pointwise convergence, rather than uniform convergence, is assumed. The continuous green functions sin n ( x ) {\displaystyle \sin ^{n}(x)} converge to the non-continuous red function. This can happen only if convergence is not uniform.