Abstract:The purpose of this paper is to introduce Nk(ℓ)$N_k(\ell )$‐maps (1⩽k,ℓ⩽∞$1\leqslant k,\ell \leqslant \infty$), which describe higher homotopy normalities, and to study their basic properties and examples. An Nk(ℓ)$N_k(\ell )$‐map is defined with higher homotopical conditions. It is shown that a homomorphism is an Nk(ℓ)$N_k(\ell )$‐map if and only if there exists fiberwise maps between fiberwise projective spaces with some properties. Also, the homotopy quotient of an Nk(k)$N_k(k)$‐map is shown to be an H$H$‐s… Show more
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