## Linear Operators: Spectral theory |

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Page 1236

A set of boundary conditions B , ( x ) = 0 , i = 1 , ... , k , is ; said to be

A set of boundary conditions B , ( x ) = 0 , i = 1 , ... , k , is ; said to be

**symmetric**if the equations B , ( x ) = B : ( y ) = 0 , i = 1 , ... , k , imply the equation { x , y } 0 . 26 LEMMA . Let T be an operator with finite ...Page 1238

Let T be a

Let T be a

**symmetric**operator with finite deficiency indices whose sum is p . Let A , ... , A , be a complete set of boundary values for T , and let Xl , j = 1 Qi ; A ; Ā , be the bilinear form of Lemma 23 . A set of boundary conditions ...Page 1272

Maximal

Maximal

**symmetric**operators . If T is a**symmetric**operator with dense domain , then it has proper**symmetric**extensions provided both of its deficiency indices are different from zero . A maximal**symmetric**operator is ...### What people are saying - Write a review

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### Contents

BAlgebras | 859 |

Commutative BAlgebras | 868 |

Commutative BAlgebras | 874 |

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