湖南文理学院学报(自然科学版)
湖南文理學院學報(自然科學版)
호남문이학원학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY OF ARTS AND SCIENCE(SCIENCE AND TECHNOLOGY)
2013年
2期
13-15
,共3页
黄祖达%李应求%肖宏芳%张敏
黃祖達%李應求%肖宏芳%張敏
황조체%리응구%초굉방%장민
Lebesgue积分序列%一致绝对连续%收敛
Lebesgue積分序列%一緻絕對連續%收斂
Lebesgue적분서렬%일치절대련속%수렴
Lebesgue integration sequence%uniformly absolutely continuous%convergence
基于叶果罗夫定理,考虑 Lebesgue 积分序列的收敛性,证明了一致绝对连续可积函数序列的处处收敛性,通过分析Sobolev空间逼近函数列的性质,发现了它的一致绝对连续性以及相应积分序列的收敛性,证明了 Sobolev 空间中的函数可以被一致绝对连续函数列逼近。因此只要函数列一致绝对连续可积,就足以保证积分序列的收敛,最后举例进行了说明。
基于葉果囉伕定理,攷慮 Lebesgue 積分序列的收斂性,證明瞭一緻絕對連續可積函數序列的處處收斂性,通過分析Sobolev空間逼近函數列的性質,髮現瞭它的一緻絕對連續性以及相應積分序列的收斂性,證明瞭 Sobolev 空間中的函數可以被一緻絕對連續函數列逼近。因此隻要函數列一緻絕對連續可積,就足以保證積分序列的收斂,最後舉例進行瞭說明。
기우협과라부정리,고필 Lebesgue 적분서렬적수렴성,증명료일치절대련속가적함수서렬적처처수렴성,통과분석Sobolev공간핍근함수렬적성질,발현료타적일치절대련속성이급상응적분서렬적수렴성,증명료 Sobolev 공간중적함수가이피일치절대련속함수렬핍근。인차지요함수렬일치절대련속가적,취족이보증적분서렬적수렴,최후거례진행료설명。
Based on the Eropob-theorm, the article considers sequences of Lebesgue imegrable functions, and proves that the a.e. convergence of a sequence of uniformly absolute continuously integrable functions implies the convergence of the sequence of their integration, anlysises deeply that Sobolev-space function’s characters,discovers that the uniformly absolute continuous and coresponding convergence of an integration sequence, and further proves that any function in Sobolev-space can be approximated by a sequence of uniformly absolute continuously integrable functions. The concolusion of the article is that a sequence of uniformly absolute continuously integrable functions implies the convergence of the sequence .An examples is given to illustrate their applications.