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  1.  
    http://mathoverflow.net/questions/109734/deformation-retraction-of-the-complement contains a link to a paper with a possible error. I commented there with

    "It might be more appropriate to remove the link to the paper, and just stick to the mathematical question. If it turns out there is an actual error in the paper, then the author could be contacted privately."

    Do we agree? Is this something a moderator should get involved in?
    • CommentAuthorRyan Budney
    • CommentTimeOct 15th 2012 edited
     

    The OP removed the link two minutes ago. And at least that part of the paper appears to be correct to my eyes.