Homotopy types of diffeomorphisms groups of simplest Morse-Bott foliations on lens spaces, 2

Abstract

Let $\mathcal{F}$ be a Morse-Bott foliation on the solid torus $T=S^1\times D^2$ into $2$-tori parallel to the boundary and one singular central circle. Gluing two copies of $T$ by some diffeomorphism between their boundaries, one gets a lens space $L_{p,q}$ with a Morse-Bott foliation ${\mathcal{F}}_{p,q}$ obtained from $\mathcal{F}$ on each copy of $T$ and thus consisting of two singluar circles and parallel $2$-tori. In the previous paper [O. Khokliuk, S. Maksymenko, Journ. Homot. Rel. Struct., 2024, 18, 313-356] there were computed weak homotopy types of the groups ${\mathcal{D}}^{lp}({\mathcal{F}}_{p,q})$ of leaf preserving (i.e. leaving invariant each leaf) diffeomorphisms of such foliations. In the present paper it is shown that the inclusion of these groups into the corresponding group ${\mathcal{D}}_{+}^{fol}({\mathcal{F}}_{p,q})$ of foliated (i.e. sending leaves to leaves) diffeomorphisms which do not interchange singular circles are homotopy equivalences.

arXiv comment28 pages

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Cited by in corpus (1)

• Vector bundle automorphisms preserving Morse-Bott foliations