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                | 基金项目:Supported by National Key Research and Development Program of China (2020YFA0714200), National Nature Science Foundation of China (12125103; 12071362), Natural Science Foundation of Hubei Province (2021AAA010; 2019CFA007) and Fundamental Research Funds for the Central Universities. | 
             
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                | RESEARCH ANNOUNCEMENTS ON DPK: DEEP NEURAL NETWORK APPROXIMATION OF THE FIRST PIOLA-KIRCHHOFF STRESS | 
           
           
			
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				YANG Zhi-jian, YUAN Cheng
						
				
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				School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China
				
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