Korean Journal of Mathematics

The Kangwon-Kyungki Mathematical Society (강원경기수학회)
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ESSENTIAL NORM OF THE PULL BACK OPERATOR

  • Shuan, Tang (School of Mathematics Sciences Soochow University) ;
  • Chong, Wu (School of Mathematics Southwest Jiaotong University)
  • Received : 2015.10.18
  • Accepted : 2015.12.26
  • Published : 2016.03.30
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Abstract

We obtain some estimations of the essential norm of a pull back operator induced by quasi-symmetric homeomorphisms. As a corollary, we deduce the compactness criterion of this operator.

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References

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