Bessel Type Inequalities for Non-Orthonormal Families of Vectors in Inner Product Spaces

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/75976Some sharp Bessel type inequalities for non-orthonormal families of vectors in inner product spaces are given. Applications for complex numbers are also provided.10 pagesFunctional AnalysisClassical Analysis and ODEs46C05, 46C09, 26D15Bessel Type Inequalities for Non-Orthonormal Families of Vectors in Inner Product Spacestext