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Quasi-extremal distance (QED) constants and boundary quasiconformal reflection constants

程涛 副教授(华东师范大学)
10月17日(周二)下午1:00--2:00  闵行数学楼401室
 
青年学术论坛邀请报告

摘要:This talk is devoted to the study of some fundamental problems on modulus and extremal length of curve families, capacity, and n-harmonic functions in the Euclidean space R^n. One of the main goals is to establish the existence, uniqueness, and boundary behavior of the extremal function for the conformal capacity of a capacitor in R^n. This generalizes some well known results and has its own interests in geometric function theory and potential theory. It is also used as a major ingredient in this paper to establish a sharp upper bound for the quasi-extremal distance constant of a domain in terms of its local boundary quasiconformal reflection constant. Along the way, several interesting results are established for modulus and extremal length. One of them is a decomposition theorem for the extremal length of the curve family joining two disjoint continua in a domain.

邀请人: 杜荣
   
 
 
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