Inner product spaces.

Advances in inequalities of the Schwarz, Gruss, and Bessel type in inner product spaces / by: (Language materials, printed)

Partial inner product spacestheory and applications / by: (Electronic resources)

Theory of approximate functional equations :in Banach algebras, inner product spaces and amenable groups / by: (Electronic resources)

Aleksandrov-Rassias problems on distance preserving mappings by: (Electronic resources)

Banach algebras.

Topology.

Operator Theory.

Inequalities (Mathematics)

Mathematics.

Functional Analysis.

Quantum Field Theories, String Theory.

Information and Communication, Circuits.

Functional differential equations.

Inner product spaces.

Hilbert space.

Geometry.