# Sur les isométries partielles maximales essentielles

Studia Mathematica (1998)

- Volume: 128, Issue: 2, page 135-144
- ISSN: 0039-3223

## Access Full Article

top## Abstract

top## How to cite

topSkhiri, Haïkel. "Sur les isométries partielles maximales essentielles." Studia Mathematica 128.2 (1998): 135-144. <http://eudml.org/doc/216479>.

@article{Skhiri1998,

author = {Skhiri, Haïkel},

journal = {Studia Mathematica},

keywords = {ideal of compact operators; set of isometries; set of maximal partial isometries; canonical projection},

language = {fre},

number = {2},

pages = {135-144},

title = {Sur les isométries partielles maximales essentielles},

url = {http://eudml.org/doc/216479},

volume = {128},

year = {1998},

}

TY - JOUR

AU - Skhiri, Haïkel

TI - Sur les isométries partielles maximales essentielles

JO - Studia Mathematica

PY - 1998

VL - 128

IS - 2

SP - 135

EP - 144

LA - fre

KW - ideal of compact operators; set of isometries; set of maximal partial isometries; canonical projection

UR - http://eudml.org/doc/216479

ER -

## References

top- [1] C. Apostol, The reduced minimum modulus, Michigan Math. J. 32 (1985), 279-294.
- [2] R. Bouldin, The essential minimum modulus, Indiana Univ. Math. J. 30 (1981), 513-517. Zbl0483.47015
- [3] R. Bouldin, Approximation by semi-Fredholm operators with fixed nullity, Rocky Mountain J. Math. 20 (1990), 39-50. Zbl0727.47006
- [4] J. B. Conway, A Course in Functional Analysis, 2nd ed., Springer, New York, 1990. Zbl0706.46003
- [5] R. S. Doran and V. A. Belfi, Characterizations of C*-algebras. The Gelfand-Naimark Theorems, M. Dekker, New York, 1986. Zbl0597.46056
- [6] P. A. Fillmore, J. G. Stampfli and J. P. Williams, On the essential numerical range, the essential spectrum, and a problem of Halmos, Acta Sci. Math. (Szeged) 33 (1972), 179-192. Zbl0246.47006
- [7] S. Goldberg, Unbounded Linear Operators, McGraw-Hill, New York, 1966. Zbl0148.12501
- [8] P. R. Halmos, A Hilbert Space Problem Book, D. Van Nostrand, 1967.
- [9] P. de la Harpe, Initiation à l'algèbre de Calkin, Lecture Notes in Math. 725, Springer, 1978, 180-219. Zbl0402.46036
- [10] D. A. Herrero, Approximation of Hilbert Space Operators, Vol. I, Pitman, Boston, 1982. Zbl0494.47001
- [11] T. Kato, Perturbation Theory for Linear Operators, Springer, Berlin, 1966. Zbl0148.12601
- [12] D. D. Rogers, Approximation by unitary and essentially unitary operators, Acta Sci. Math. (Szeged) 39 (1977), 141-151. Zbl0367.47006
- [13] J. Weidmann, Linear Operators in Hilbert Spaces, Springer, New York, 1980. Zbl0434.47001

## NotesEmbed ?

topTo embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.