A golusin semi-variation

  • David Oates (Department of Mathematics, University of Exeter) ;
  • Lee, Suk-Young (Department of Mathematics, Ewha Womens University)
  • Published : 1995.07.01

Abstract

We use a semi-variational method to obtain necessary condition for a linear functional L to attain its extrema at certain elementary products. This is applied to obtain an answer to the long-standing question of determining explicit extreme points of the normalised Spirallike functions of order $\alpha$.

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