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For a bridgeless graph   G  , its flow polynomial is defined to be the function   F   (   G  ,  q   )   , which counts the number of nonwhere‐zero   Γ  ‐flows on an orientation of   G   whenever   q   is a positive integer and   Γ   is an additive Abelian group of order   q  . It was introduced by Tutte in 1950, and the locations of zeros of this polynomial have been studied by many researchers. This paper gives a survey on the results and problems on the study of real zeros of flow polynomials.

A survey on the study of real zeros of flow polynomials