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          |  | Volume 8, Issue 4, Article 119 |  |   
          |  |  |  |  |  |  | A Simple Proof of Schipp's Theorem
 
 
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          |  |  | Authors: | Yanbo Ren, Junyan Ren, |  |   
          |  |  | Keywords: | Martingale inequality, Property $Delta$. |  |   
          |  |  | Date Received: | 13/09/07 |  |   
          |  |  | Date Accepted: | 06/11/07 |  |   
          |  |  | Subject Codes: | 60G42. |  |   
          |  |  | Editors: | Sever S. Dragomir, |  |   
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          |  |  | Abstract: |  In this paper we give a simple proof of Schipp's theorem by using a basic martingale inequality.
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