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On the preservation of shapes under mappings. (English. Russian original) Zbl 0356.54037

Sov. Math., Dokl. 16(1975), 1164-1168 (1976); translation from Dokl. Akad. Nauk SSSR 224, 261-264 (1975).

MSC:

54C55 Absolute neighborhood extensor, absolute extensor, absolute neighborhood retract (ANR), absolute retract spaces (general properties)
55P99 Homotopy theory
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