Texas The main article for this category is Hilbert spaces. Pages in category "Hilbert spaces" The following 48 pages are in this category, out of 48 total. This list may not reflect recent changes. Hilbert spaceB Bessel's inequalityC Calkin correspondence Category of finite-dimensional Hilbert spaces Céa's lemma Commutator subspace Compact operator on Hilbert space Coorbit theory Cotlar–Stein lemma Covariance operator Crinkled arcD Densely defined operator Dixmier traceE Energetic space Euler–Maclaurin formulaF Fredholm determinantG Gleason's theoremH Hadamard space Hellinger–Toeplitz theoremI Infinite-dimensional vector functionJ Jacobi operatorK Kirszbraun theorem Kuiper's theoremL Liouville spaceM Moment problem Morse–Palais lemma Mutually unbiased basesP Positive-definite kernel Projective Hilbert spaceQ Quantum state spaceR Redheffer star product Representer theorem Reproducing kernel Hilbert space Riesz representation theorem Rigged Hilbert spaceS Scattering theory Self-adjoint operator SIC-POVM Singular trace Solèr's theorem Strongly monotone operatorT Tensor product of Hilbert spaces Topological tensor product Tree kernelW Weak convergence (Hilbert space) Weak trace-class operator Wigner's theoremY Nicholas Young (mathematician)