Why link to the PDF? Better to just link to the abstract: http://arxiv.org/abs/math/9205211 http://arxiv.org/abs/math/9205211 Edit: To be clear, this is good

Why link to the PDF? Better to just link to the abstract: http://arxiv.org/abs/math/9205211 http://arxiv.org/abs/math/9205211 Edit: To be clear, this is good practice when linking to arXiv in general. From the abstract, one can easily click through to the PDF; not so the reverse. And the abstract allows one to do things like see different versions of the paper, search for other things by the same authors, etc.