Equality of sectional category and higher topological complexity for real projective spaces

Let Gs=(Z2)×(s1)G_s=(\mathbb{Z}_2)^{\times(s-1)}, let πs\pi_s be the projective product covering considered above, and let ϕs ⁣:(Sm)×sJsecat(πs)(Gs)\phi_s\colon(S^m)^{\times s}\to J_{\operatorname{secat}(\pi_s)}(G_s) be a GsG_s-equivariant map satisfying

ϕs(x1,,xs1,xs)=σ1σs1ϕs(x1,,xs1,xs).\phi_s(x_1,\ldots,x_{s-1},-x_s)=\sigma_1\cdots\sigma_{s-1}\cdot\phi_s(x_1,\ldots,x_{s-1},x_s).

Equality conjecture. An ss-motion planning algorithm for RPm\operatorname{\mathbb{R}P}^m with secat(πs)+1\operatorname{secat}(\pi_s)+1 ss-local rules can be constructed out of such a map. Consequently,

secat(πs)TCs(RPm),\operatorname{secat}(\pi_s)\geq\operatorname{TC}_s(\operatorname{\mathbb{R}P}^m),

and the previously established expression for secat(πs)\operatorname{secat}(\pi_s) becomes an equality for every s2s\geq2. This identifies the sectional category of the projective product covering with higher topological complexity and would provide motion-planning algorithms with the asserted number of local rules.

Sources & referencesView supporting material

Primary source

Jesus Gonzalez, Darwin Gutierrez and Adriana Lara, “Projective product coverings and sequential motion planning algorithms in real projective spaces”, arXiv:1605.07966 (2016).

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