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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeOct 23rd 2017
    • (edited Oct 23rd 2017)

    I have split off a simple entry sphere bundle from spherical fibration in order to allow more precise linking (for instance from Thom space and from wave front set): “sphere bundle” is about fiber bundles whose fibers are isomorphic to spheres, while “spherical fibrations” is about those whose fibers have the (stable) homotopy type of spheres.

    • CommentRowNumber2.
    • CommentAuthorTodd_Trimble
    • CommentTimeOct 23rd 2017
    • (edited Oct 23rd 2017)

    Each of the references in Thom space links to a “404: page not found”.

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeOct 23rd 2017

    These links were introduced by Zoran in rev 3.

    • CommentRowNumber4.
    • CommentAuthorRodMcGuire
    • CommentTimeOct 23rd 2017 is some sort of front end to PlanetMath.

    The PlanetMath site can be flaky and has had periods when it is unavailable. Maybe those links were added to cached copies when PlanetMath was inaccessible.

    Here are the direct links to the pages (they generate error messages at top but still seem to have content)

    The nLab page Thom isomorphism also contains these myyn links.

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