Array convergence of functions of the first Baire class

Author:

Knaust Helmut

Abstract

We show that every array ( x ( i , j ) : 1 i > j > ) (x(i,j):1 \leq i > j > \infty ) of elements in a pointwise compact subset of the Baire- 1 1 functions on a Polish space, whose iterated pointwise limit lim i lim j x ( i , j ) {\lim _i}{\lim _j}x(i,j) exists, is converging Ramsey-uniformly. An array ( x ( i , j ) i > j ) (x{(i,j)_{i > j}}) in a Hausdorff space T T is said to converge Ramsey-uniformly to some x x in T T , if every subsequence of the positive integers has a further subsequence ( m i ) ({m_i}) such that every open neighborhood U U of x x in T T contains all elements x ( m i , m j ) x({m_i},{m_j}) with i > j i > j except for finitely many i i .

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference10 articles.

1. An example of two compact Hausdorff Fréchet spaces whose product is not Fréchet;Boehme, T. K.;J. London Math. Soc. (2),1974

2. Pointwise compact sets of Baire-measurable functions;Bourgain, J.;Amer. J. Math.,1978

3. A new proof that analytic sets are Ramsey;Ellentuck, Erik;J. Symbolic Logic,1974

4. Applications of Ramsey theorems to Banach space theory;Odell, E.,1980

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. COMPACT SPACES OF THE FIRST BAIRE CLASS THAT HAVE OPEN FINITE DEGREE;Journal of the Institute of Mathematics of Jussieu;2016-11-21

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3