四阶微分系统广义主次谱之比的下界
Publisher： 国家哲学社会科学学术期刊数据库
E-ISSN： 2095-7602|34|6|1-5
ISSN： 2095-7602
Source： 长春师范大学学报, Vol.34, Iss.6, 2015-01, pp. : 1-5
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Abstract