Abstract
Let \({(M,\mathcal{F})}\) be a closed manifold with a Riemannian foliation. We show that the secondary characteristic classes of the Molino’s commuting sheaf of \({(M,\mathcal{F})}\) vanish if \({(M,\mathcal{F})}\) is developable and π 1 M is of polynomial growth. By theorems of Álvarez López in (Álvarez López, Ann. Global Anal. Geom., 10:179–194, 1992) and (Álvarez López, Ann. Pol. Math., 64:253–265, 1996), our result implies that \({(M,\mathcal{F})}\) is minimizable under the same conditions. As a corollary, we show that \({(M,\mathcal{F})}\) is minimizable if \({\mathcal{F}}\) is of codimension 2 and π 1 M is of polynomial growth.
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Nozawa, H. Minimizability of developable Riemannian foliations. Ann Glob Anal Geom 38, 119–133 (2010). https://doi.org/10.1007/s10455-010-9203-7
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DOI: https://doi.org/10.1007/s10455-010-9203-7