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تسجيل مستخدم جديدAn example of a closed 5-manifold of nonpositive curvature that fibers over a circle
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Koji Fujiwara
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We exhibit a closed aspherical 5-manifold of nonpositive curvature that fibers over a circle whose fundamental group is hyperbolic relative to abelian subgroups such that the fiber is a closed aspherical 4-manifold whose fundamental group is not hyperbolic relative to abelian subgroups.
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