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math.FA2021
Hadamard weighted geometric mean inequalities for the spectral and essential spectral radius of positive operators on Banach function and sequence spaces
Katarina Bogdanović, Aljoša Peperko
We prove new inequalities for the spectral radius, essential spectral radius, operator norm, measure of noncompactness and numerical radius of Hadamard weighted geometric means of…
math.FA2018
Uniform boundedness principle for non-linear operators on cones of functions
Aljoša Peperko
We prove an uniform boundedness principle for the Lipschitz seminorm of continuous, monotone, positively homogeneous and subadditive mappings on suitable cones of functions. The re…