ON THE EXISTENCE OF PERIODIC SOLUTIONS TO CERTAIN FOURTH ORDER DIFFERENTIAL EQUATION |
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作者姓名: | 冯春华 |
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作者单位: | 广西师范大学 |
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摘 要: | ONTHEEXISTENCEOFPERIODICSOLUTIONSTOCERTAINFOURTHORDERDIFFERENTIALEQUATIONFengChunhua(冯春华)(GuangxiNormalUniversity,广西师范大学,邮编:5...
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