(m, NA)-isometries and their harmonious applications to Hilbert-Schmidt operators

MA Aouichaoui - Linear Algebra and its Applications, 2024 - Elsevier
Numerous works have been dedicated to the topic of m-isometries, including
[2],[3],[4],[5],[6],[14],[18],[19],[20],[27],[47],[48]. In this article, we introduce the concept of (m …

Advancements in the generalization of m-isometries: introducing the q-partial-(m, A)-isometry class

SAOA Mahmoud, MA Aouichaoui - Linear and Multilinear Algebra, 2024 - Taylor & Francis
In this paper, we extend the concepts of m-partial isometry of order q and (m, A)-isometry,
building on the contributions of Aouichaoui MA.[A note on partial-A-isometries and some …