A+ CATEGORY SCIENTIFIC UNIT

Arc property of Kelley and absolute retracts for hereditarily unicoherent continua

Volume 97 / 2003

Janusz J. Charatonik, Włodzimierz J. Charatonik, Janusz R. Prajs Colloquium Mathematicum 97 (2003), 49-65 MSC: Primary 54F15, 54F50; Secondary 54C55. DOI: 10.4064/cm97-1-6

Abstract

We investigate absolute retracts for hereditarily unicoherent continua, and also the continua that have the arc property of Kelley (i.e., the continua that satisfy both the property of Kelley and the arc approximation property). Among other results we prove that each absolute retract for hereditarily unicoherent continua (for tree-like continua, for $\lambda $-dendroids, for dendroids) has the arc property of Kelley.

Authors

  • Janusz J. CharatonikMathematical Institute
    University of Wrocław
    Pl. Grunwaldzki 2/4
    50-384 Wrocław, Poland
    and
    Instituto de Matemáticas, UNAM
    Circuito Exterior, Ciudad Universitaria
    04510 México, D.F., México
    e-mail
  • Włodzimierz J. CharatonikDepartment of Mathematics and Statistics
    University of Missouri-Rolla
    Rolla, MO 65409-0020, U.S.A.
    e-mail
  • Janusz R. PrajsInstitute of Mathematics
    University of Opole
    Oleska 48
    45-052 Opole, Poland
    and
    Department of Mathematics
    Idaho State University
    Pocatello, ID 83209, U.S.A.
    e-mail

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