Some Inequalities Relating to Conformal Mapping upon Canonical Slit-domains

نویسنده

  • BERNARD EPSTEIN
چکیده

(1) f = se(z) = z + — + • • • z and which maps D conformally and bi-uniformly upon a domain De of the f-plane bounded by n rectilinear slits each of which makes the angle 0 with the positive direction of the real axis. The domain De is itself also uniquely determined for each value of 0. In the present paper we shall derive two inequalities involving the coefficient a$ appearing in (1) and the outer measure A of the complement (with respect to the entire plane) of the domain D— that is, the greatest lower bound of the total area enclosed by a set of analytic curves surrounding the boundary continua. The first of these inequalities is the following :

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تاریخ انتشار 2007