Geodesic
On the numerical range and numerical radius of the Volterra operator
The Bulletin of Irkutsk State University. Series Mathematics, Tome 24 (2018), pp. 102-108

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In this paper, we investigated the numerical range and the numerical radius of the classical Volterra operator on the complex space $L^2[0,1]$. In particular, we determined the numerical range, the numerical radius of real and imaginary part of the Volterra operator.
Keywords: Volterra operator, numerical range, numerical radius. 
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     title = {On the numerical range and numerical radius of the {Volterra} operator},
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L. Khadkhuu; D. Tsedenbayar. On the numerical range and numerical radius of the Volterra operator. The Bulletin of Irkutsk State University. Series Mathematics, Tome 24 (2018), pp. 102-108. http://geodesic.mathdoc.fr/item/IIGUM_2018_24_a7/