1991
DOI: 10.1007/bf02278038
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F-retracts, L-retracts and WAE(n)

Abstract: The notion of a weakly absolute extensor in the dimension n for the class of bicompacts (WAE(n)) is intruduced in [5]. In this paper, the notions of F-retraction and L-retraction are introduced and using these notions, some properties of WAE(n) are given.

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Cited by 2 publications
(4 citation statements)
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“…A bicompact X is an absolute neighbourhood retract for bicompacts (abbreviated ANR for bicompacts) [3], if given a bicompact Y having a closed subspace Y0 homeomorphic to X, then Y0 is a neighbourhood retract of Y. A subspace A of a space X is said to be an L-retract of X [6], if A is a retract of a functionally closed subspace W of X which contains A.…”
Section: Introductionmentioning
confidence: 99%
“…A bicompact X is an absolute neighbourhood retract for bicompacts (abbreviated ANR for bicompacts) [3], if given a bicompact Y having a closed subspace Y0 homeomorphic to X, then Y0 is a neighbourhood retract of Y. A subspace A of a space X is said to be an L-retract of X [6], if A is a retract of a functionally closed subspace W of X which contains A.…”
Section: Introductionmentioning
confidence: 99%
“…MeV, realizaram um estudo e análise de dados a partir da produção rotineira de Em 1989, V. Bechtold, N. Kernert e H. Scweickert (23) (11,17,18,19,20,21,23,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41) , nos quais se utilizam várias rotas diferentes, sendo os materiais alvos escolhidos em razão da reação nuclear proposta. Os processos existentes podem ser divididos em dois grupos principais e determinam os tipos de reações possíveis de ocorrer.…”
Section: Correnteunclassified
“…Processos Indiretos(11,17,21,22,25,27,33,34,35,37,38,39,40) -são aqueles em que as reações nucleares produzem um radionuclídeo precursor, ou seja, que antecede o que se deseja obter. Por meio de decaimento radioativo, esse radionuclídeo se transforma no de interesse.…”
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