Characters on C(X)

被引:1
|
作者
Boulabiar, Karim [1 ]
机构
[1] Tunis El Manar Univ, Fac Math Phys & Nat Sci Tunis, Res Lab Algebra Topol Arithmet & Order, El Manar 2092, Tunisia
关键词
characters; realcompact; evaluation; real-valued continuous functions; HOMOMORPHISMS;
D O I
10.4153/CMB-2014-024-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The precise condition on a completely regular space X for every character on C(X) to be an evaluation at some point in X is that X be realcompact. Usually, this classical result is obtained by relying heavily on involved (and even nonconstructive) extension arguments. This note provides a direct proof that is accessible to a large audience.
引用
收藏
页码:7 / 8
页数:2
相关论文
共 50 条
  • [1] Characterization of qualitative and quantitative characters of the hybridized chili (Capsicum sp) genotype C10 x C2
    Hafsah, S.
    Bakhtiar
    Rahmawati, M.
    Nura
    Firdaus
    2ND INTERNATIONAL CONFERENCE ON AGRICULTURAL TECHNOLOGY, ENGINEERING AND ENVIRONMENTAL SCIENCES, 2021, 644
  • [2] Invariants of 2 x 2 matrices, irreducible SL(2,C) characters and the Magnus trace map
    Florentino, Carlos A. A.
    GEOMETRIAE DEDICATA, 2006, 121 (01) : 167 - 186
  • [3] RECOMBINATION MODIFICATION WITH X-LINKED CHARACTERS
    LIBERMAN, U
    FELDMAN, MW
    THEORETICAL POPULATION BIOLOGY, 1993, 44 (02) : 225 - 245
  • [4] EFFECTS OF X-RAYS ON QUANTITATIVE CHARACTERS
    CLAYTON, GA
    ROBERTSON, A
    GENETICAL RESEARCH, 1964, 5 (03) : 410 - &
  • [5] Identifying X-trees with few characters
    Bordewich, Magnus
    Semple, Charles
    Steel, Mike
    ELECTRONIC JOURNAL OF COMBINATORICS, 2006, 13 (01):
  • [6] CHARACTERS OF SINGLY GENERATED C -ALGEBRAS
    ISTRATESCU, V
    ISTRATES.I
    PROCEEDINGS OF THE JAPAN ACADEMY, 1971, 47 (01): : 42 - +
  • [8] CHARACTERS OF WEYL GROUP OF TYPE C
    MAYER, SJ
    JOURNAL OF ALGEBRA, 1975, 33 (01) : 59 - 67
  • [9] SUBMODULES OF C(X) X - X C(X)
    ROTH, B
    PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 32 (02) : 543 - +
  • [10] ON CALCULATION OF LK(1, X) FOR SOME HECKE CHARACTERS
    HARA, Y
    JOURNAL OF MATHEMATICS OF KYOTO UNIVERSITY, 1993, 33 (03): : 865 - 898