Inner product spaces.

Best approximation in inner product spaces / by: (Language materials, printed)

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

Partial inner product spaces = theory and applications / by: (Language materials, printed)

The fourfold way in real analysis : = an alternative to the metaplectic representation / by: (Language materials, printed)

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

Partial inner product spaces : = theory and applications / by: (Language materials, printed)

Inequalities (Mathematics).

Banach algebras.

Operator Theory.

Lie groups.

Approximation theory.

Mathematics.

Functional Analysis.

Quantum Field Theories, String Theory.

Harmonic analysis.

Information and Communication, Circuits.

Fourier analysis.

Functional differential equations.

Phase space (Statistical physics)

Inner product spaces.