An estimate of the location of the spectrum of a matrix relative to plane curves
English version (Springer): Ukrainian Mathematical Journal 37 (1985), no. 1, pp 31-35.
Citation Example: Mazko A. G. An estimate of the location of the spectrum of a matrix relative to plane curves // Ukr. Mat. Zh. - 1985. - 37, № 1. - pp. 38 – 42.
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