Vol. No.(), Paper ID 14474, 4 pages

DOI:

 

Dept. PE ., Baoji Univ. of Arts. & Sci.,Baoji, Shaanxi ,China,721016

 

Fu-peng Tian, Liang-liang Ma

 

School of Mathematics and Computer Science, Northwest University for Nationalities, Lanzhou 730030, China
School of Mathematics and Computer Science, Northwest University for Nationalities, Lanzhou 730030, China

 

Copyright © Fu-peng Tian, Liang-liang Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

 

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