Fibrator properties of manifolds
Keywords: منیفول هففین; primary; 57N15; 55R65; secondary; 57N25; 57Q50; 55R15; 54B15; Approximate fibration; Codimension-k fibrator; Hopfian manifold; Cohopfian; Sparsely Abelian; Generalized manifold; t-aspherical;