## Linear Operators: General theory |

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Page 51

Let the homomorphism f : G → H be continuous at x , and let y e G. If V is a

Let the homomorphism f : G → H be continuous at x , and let y e G. If V is a

**neighborhood**of f ( y ) , then , by Lemma 2 ( c ) , Vily - 1x ) is a**neighborhood**of f ( x ) . If U is a**neighborhood**of x such that f ( U ) C V } ( y - 1x ) ...Page 56

of the image of any

of the image of any

**neighborhood**G of the element 0 in X contains a**neighborhood**of the element 0 in Y. Since a - b is a continuous function of a and b , there is a**neighborhood**M of 0 such that M - MCG .Page 572

Lett be analytic on a

Lett be analytic on a

**neighborhood**U of o ( T ) . For each a co ( T ) , there is an e ( a ) > 0 such that the sphere S ( a , e ( c ) ) CU . Since o ( T ) is compact , a finite set of spheres S ( Qz , € ( Qy ) ) , ... , Slam , Elan ...### What people are saying - Write a review

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### Contents

Preliminary Concepts | 1 |

B Topological Preliminaries | 10 |

quences | 26 |

Copyright | |

80 other sections not shown

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### Common terms and phrases

Akad algebra Amer analytic applied arbitrary assume B-space Banach Banach spaces bounded called clear closed compact complex Consequently contains converges convex Corollary countably additive defined DEFINITION denote dense determined differential disjoint domain element equation equivalent everywhere Exercise exists extension field finite follows function defined function f given Hence Hilbert space implies inequality integral interval isomorphism Lebesgue Lemma limit linear functional linear operator linear space mapping Math mean measure space metric space neighborhood norm o-field open set operator positive problem Proc PROOF properties proved range regular respect Russian satisfies scalar seen separable sequence set function Show shown sphere statement subset Suppose Theorem theory topological space topology transformations u-integrable u-measurable uniformly union unique unit valued vector weak zero