Pseudoanalytic function

Pseudoanalytic functions are a generalization of analytic functions that arise in the context of complex analysis and partial differential equations. They can be defined using the framework of pseudoanalytic function theory, which is an extension of classical analytic function theory. In classical terms, a function is considered analytic if it is locally represented by a convergent power series. Pseudoanalytic functions, however, are defined by more general conditions that relax some of the requirements of analyticity.