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Surgery Applications to a Generalized Rudyak Conjecture

Published 16 Sep 2021 in math.AT | (2109.08011v1)

Abstract: Rudyak's conjecture states that cat(M)(M) \geq cat(N)(N) given a degree one map f:MNf:M \to N between closed manifolds. We generalize this conjecture to sectional category, and follow the methodology of [5] to get the following result: Given a normal map of degree one f:MNf:M \to N between smooth closed manifolds, fibrations p<sup>M:E<sup>M</sup></sup>Mp<sup>M:E<sup>M</sup></sup> \to M and p<sup>N:E<sup>N</sup></sup>Np<sup>N:E<sup>N</sup></sup> \to N, and lift f\overline{f} of ff with respect to p<sup>Mp<sup>M and p<sup>Np<sup>N, i.e., fp<sup>M</sup>=fp<sup>Nfp<sup>M</sup> = \overline{f} p<sup>N; then if ff has no surgery obstructions and NN satisfies the inequality 5dimN2r5 \leq \dim N \leq 2r secat(p<sup>N)</sup>3(p<sup>N)</sup> - 3 (where the fiber of p<sup>Np<sup>N is (r2)(r-2)-connected for some r1r \geq 1), then secat(p<sup>M)</sup>(p<sup>M)</sup> \geqsecat(p<sup>N)(p<sup>N). Finally, we apply this result to the case of higher topological complexity when NN is simply connected.

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