Narrower Terms (28)

• Aggregation operators
• Almost periodic operators
• ▶ Differential operators
• Dilation theory (Operator theory)
• Eigenfunction expansions
• Factorization of operators
• Hecke operators
• ▶ Integral operators
• ▶ Linear operators
• Mellin operators
• Monotone operators
• Narrow operators
• ▶ Nonlinear operators
• ▶ Operator algebras
• Operator colligations
• Operator product expansions
• Operator spaces
• Operator-valued measures
• Polynomial operators
• Product formulas (Operator theory)
• Pseudodifferential operators
• Random operators
• Resolvents (Mathematics)
• ▶ Scattering operator
• ▶ Semigroups of operators
• ▶ Transfer operators
• Transmutation operators
• Unitary operators