Geodesic
Projection Seminorms and the Field of Values of Linear Operators.
Numerische Mathematik, Tome 24 (1975), pp. 151-162.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

@article{NUMA_1975__24_132335,
     author = {R.H. jr. Martin and J.H. III. Lightbourne},
     title = {Projection {Seminorms} and the {Field} of {Values} of {Linear} {Operators.}},
     journal = {Numerische Mathematik},
     pages = {151--162},
     publisher = {mathdoc},
     volume = {24},
     year = {1975},
     zbl = {0323.47003},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1975__24_132335/}
}
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R.H. jr. Martin; J.H. III. Lightbourne. Projection Seminorms and the Field of Values of Linear Operators.. Numerische Mathematik, Tome 24 (1975), pp. 151-162. http://geodesic.mathdoc.fr/item/NUMA_1975__24_132335/