| 47A05 |
- |
General (adjoints, conjugates, products, inverses, domains, ranges, etc.) |
| 47A06 |
- |
Linear relations (multivalued linear operators) |
| 47A07 |
- |
Forms (bilinear, sesquilinear, multilinear) |
| 47A10 |
- |
Spectrum, resolvent |
| 47A11 |
- |
Local spectral properties |
| 47A12 |
- |
Numerical range, numerical radius |
| 47A13 |
- |
Several-variable operator theory (spectral, Fredholm, etc.) |
| 47A15 |
- |
Invariant subspaces |
| 47A16 |
- |
Cyclic and hypercyclic vectors |
| 47A20 |
- |
Dilations, extensions, compressions |
| 47A25 |
- |
Spectral sets |
| 47A30 |
- |
Norms (inequalities, more than one norm, etc.) |
| 47A35 |
- |
Ergodic theory |
| 47A40 |
- |
Scattering theory |
| 47A45 |
- |
Canonical models for contractions and nonselfadjoint operators |
| 47A46 |
- |
Chains (nests) of projections or of invariant subspaces, integrals along chains, etc. |
| 47A48 |
- |
Operator colligations (= nodes), vessels, linear systems, characteristic functions, realizations, etc. |
| 47A50 |
- |
Equations and inequalities involving linear operators, with vector unknowns |
| 47A52 |
- |
Ill-posed problems, regularization |
| 47A53 |
- |
(Semi-) Fredholm operators; index theories |
| 47A55 |
- |
Perturbation theory |
| 47A56 |
- |
Functions whose values are linear operators (operator and matrix valued functions, etc., including analytic and meromorphic ones |
| 47A57 |
- |
Operator methods in interpolation, moment and extension problems |
| 47A58 |
- |
Operator approximation theory |
| 47A60 |
- |
Functional calculus |
| 47A62 |
- |
Equations involving linear operators, with operator unknowns |
| 47A63 |
- |
Operator inequalities |
| 47A64 |
- |
Operator means, shorted operators, etc. |
| 47A65 |
- |
Structure theory |
| 47A66 |
- |
Quasitriangular and nonquasitriangular, quasidiagonal and nonquasidiagonal operators |
| 47A67 |
- |
Representation theory |
| 47A68 |
- |
Factorization theory (including Wiener-Hopf and spectral factorizations) |
| 47A70 |
- |
(Generalized) eigenfunction expansions; rigged Hilbert spaces |
| 47A75 |
- |
Eigenvalue problems |
| 47A80 |
- |
Tensor products of operators |
| 47A99 |
- |
Miscellaneous |
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