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Some inequalities involving multivalent functions

Shigeyoshi Owa, Mamoru Nunokawa, Hitoshi Saitoh (1994)

Annales Polonici Mathematici

The object of the present paper is to derive some inequalities involving multivalent functions in the unit disk. One of our results is an improvement and a generalization of a result due to R. M. Robinson [4].

Some methodical remarks concerning the flow around arbitrary profiles

Ilja Černý (1982)

Aplikace matematiky

Two well known definitions of the flow of a plane vector field around the boundary of a region Ω are compared. The definition (appropriately arranged) based on the constantness of the stream function on every profile is not only invariant under conformal mappings but more general than the definition based on the vanishing of the normal component of the field on Ω .

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