Abstract
Let H be a complex Hilbert space with scalar product denoted (··), and let L(H) denote the algebra of bounded linear operators on H. For a family r = {T i : i ∈ J} ⊂ L(H) one defines the joint numerical range W(τ) by
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References
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Dedicated to Professor T. Ando, on the occasion of his sixtieth anniversary.
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© 1993 Springer Basel AG
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Bercovici, H. (1993). On Certain (Nearly) Convex Joint Numerical Ranges. In: Furuta, T., Gohberg, I., Nakazi, T. (eds) Contributions to Operator Theory and its Applications. Operator Theory: Advances and Applications, vol 62. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8581-2_1
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DOI: https://doi.org/10.1007/978-3-0348-8581-2_1
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