Contents

Functional Analysis and Its Applications

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Vol. 57, No. 1, 2023

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Research Articles

An Index Theorem for Linear Relations and Its Applications to the Study of Block Relation Matrices

Ayoub Ghorbel, and Maher Mnif p. 1  abstract

Spectral Inclusion Properties of Quaternionic Krein Space Numerical Range

Kamel Mahfoudhi p. 17  abstract

A Convex-Block Approach to Numerical Radius Inequalities

Mohammad Sababheh, Cristian Conde, and Hamid Reza Moradi p. 26  abstract

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