【摘 要】
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The concept of relative N-compactness is defined and characterized in terms ofnets. It is shown that the relative N-compactness is hereditary with respect to L-
【机 构】
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CollegeofMathematicsandInformationScience,CollegeofMathematicsandInformationScience
【基金项目】
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中国科学院资助项目,the Science Foundation of Weinan Teacher's College