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Mathematical Sciences Classification System

39Bxx - Functional equations and inequalities
[See also 30D05]

• 39B05
  General
• 5
  39B12
  Iteration theory, iterative and composite equations [See also 26A18, 30D05, 37-XX]
• 39B22
  Equations for real functions [See also 26A51, 26B25]
• 4
  39B32
  Equations for complex functions [See also 30D05]
• 1
  39B42
  Matrix and operator equations [See also 47Jxx]
• 7
  39B52
  Equations for functions with more general domains and/or ranges
• 39B55
  Orthogonal additivity and other conditional equations
• 8
  39B62
  Functional inequalities, including subadditivity, convexity, etc. [See also 26A51, 26B25, 26Dxx]
• 4
  39B72
  Systems of functional equations and inequalities
• 8
  39B82
  Stability, separation, extension, and related topics [See also 46A22]
• 39B99
  None of the above, but in this section