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Meromorphic function
Class of mathematical function / From Wikipedia, the free encyclopedia
In the mathematical field of complex analysis, a meromorphic function on an open subset D of the complex plane is a function that is holomorphic on all of D except for a set of isolated points, which are poles of the function.[1] The term comes from the Greek meros (μέρος), meaning "part".[lower-alpha 1]
Every meromorphic function on D can be expressed as the ratio between two holomorphic functions (with the denominator not constant 0) defined on D: any pole must coincide with a zero of the denominator.
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