A note on the generalized maximal numerical range of operators
Sign Up to like & getrecommendations! Published in 2024 at "Filomat"
DOI: 10.2298/fil2417299b
Abstract: This study explores the A-maximal numerical range of operators, represented as WAmax(?), where A is a positive bounded linear operator on a complex Hilbert space H. The research provides new insights into the properties and… read more here.
Keywords: numerical range; range operators; generalized maximal; maximal numerical ... See more keywords
A generalized maximal diameter sphere theorem
Sign Up to like & getrecommendations! Published in 2019 at "Tohoku Mathematical Journal"
DOI: 10.2748/tmj/1552100447
Abstract: We prove that if a complete connected $n$-dimensional Riemannian manifold $M$ has radial sectional curvature at a base point $p\in M$ bounded from below by the radial curvature function of a two-sphere of revolution $\widetilde… read more here.
Keywords: diameter; generalized maximal; maximal diameter; curvature ... See more keywords