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Vanish at Infinity: Mathematics, Function (Mathematics) -

English
2026-03-17
€156.58 €195.73

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High Quality Content by WIKIPEDIA articles! In mathematics, a function on a normed vector space is said to vanish at infinity if f(x)to 0 as |x|to infty. For example, the function f(x)=frac{1}{1+x^2} defined on the real line vanishes at infinity. There is a generalization of this to a locally compact setting. A function f on a locally compact space (which may not have a norm) vanishes at infinity if, given ... Full description

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High Quality Content by WIKIPEDIA articles! In mathematics, a function on a normed vector space is said to vanish at infinity if f(x)to 0 as |x|to infty. For example, the function f(x)=frac{1}{1+x^2} defined on the real line vanishes at infinity. There is a generalization of this to a locally compact setting. A function f on a locally compact space (which may not have a norm) vanishes at infinity if, given any positive number ¿, there is a compact subset K such that |f(x)| < epsilon whenever the point x lies outside of K. Both of these notions correspond to the intuitive notion of adding a point "at infinity" and requiring the values of the function to get arbitrarily close to zero as we approach it. This "definition" can be formalized in many cases by adding a point at infinity.

More Information

Publisher OmniScriptum
Release year 2026
Cover type Softcover
EAN 9786131123481
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€156.58 €195.73