## Linear Operators: Spectral theory |

### From inside the book

Results 1-3 of 71

Page 1236

= 0, i = 1,..., k, if the boundary values B, are all linear combinations of the C, . If

each of two sets of

**boundary conditions**C, (a) = 0, j = 1,..., m, is said to be stronger than the set B, (a)= 0, i = 1,..., k, if the boundary values B, are all linear combinations of the C, . If

each of two sets of

**boundary conditions**is stronger than the other, then the sets ...Page 1305

If B(f) = 0 is not a

the equation B(f) = 0 may be written as Bi(f) = B2(f), ... A set of

If B(f) = 0 is not a

**boundary condition**either at a or at b (so that, by Theorem 19,the equation B(f) = 0 may be written as Bi(f) = B2(f), ... A set of

**boundary****conditions**is said to be separated if it (or, more generally, some set of**boundary****conditions**...Page 1310

imposition of a separated symmetric set of

Then the

(r—A) p = 0 square-integrable at a and satisfying the

and ...

imposition of a separated symmetric set of

**boundary conditions**. Let JAA # 0.Then the

**boundary conditions**are real, and there is eractly one solution p(t, A) of(r—A) p = 0 square-integrable at a and satisfying the

**boundary conditions**at a,and ...

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

SPECTRAL THEORY | 858 |

868 | 885 |

Miscellaneous Applications | 937 |

Copyright | |

38 other sections not shown

### Other editions - View all

### Common terms and phrases

additive Akad algebra Amer analytic assume Banach spaces basis belongs Borel boundary conditions boundary values bounded called clear closed closure coefficients compact complex Consequently constant contains continuous converges Corollary corresponding defined Definition denote dense determined domain eigenvalues element equal equation essential spectrum evident Exercise exists extension finite follows formal differential operator formula function function f given Hence Hilbert space identity independent indices inequality integral interval Lemma limit linear mapping Math matrix measure multiplicity neighborhood norm obtained partial positive preceding present problem projection proof properties prove range regular remark representation respectively restriction result satisfies seen sequence singular solution spectral square-integrable statement subset subspace sufficiently Suppose symmetric Theorem theory topology transform unique vanishes vector zero