Pencils of real symmetric matrices and the numerical range.
Aequationes mathematicae, Tome 17 (1978), pp. 91-103
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ZblMarvin Marcus. Pencils of real symmetric matrices and the numerical range.. Aequationes mathematicae, Tome 17 (1978), pp. 91-103. http://geodesic.mathdoc.fr/item/AM2_1978__17_136724/
@article{AM2_1978__17_136724,
author = {Marvin Marcus},
title = {Pencils of real symmetric matrices and the numerical range.},
journal = {Aequationes mathematicae},
pages = {91--103},
year = {1978},
volume = {17},
zbl = {0386.15010},
url = {http://geodesic.mathdoc.fr/item/AM2_1978__17_136724/}
}