Titlebook: Manifolds all of whose Geodesics are Closed; Arthur L. Besse Book 1978 Springer-Verlag Berlin Heidelberg 1978 Geodätische Linie.Manifolds.

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On the Topology of SC- and P-Manifolds,s of .-manifolds which are not isometric to a CROSS, the so-called Zoll manifolds. Observe, however, that the underlying differentiable manifold in these examples is the standard sphere. In this chapter we will prove that, at least topologically, the .-manifolds are not very different from CROSSes.

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Sturm-Liouville Equations all of whose Solutions are Periodic, after F. Neuman, In the literature on differential equations there is a wide variety of books and monographs devoted to the Sturm-Liouville equation. We have selected [BA] as a reference since it inspired part of the work by F. Neuman..In B.II we analyze how a vector-valued Sturm-Liouville equation is associated wi

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