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Dec 4 at 21:22 comment added E. Schulz @G.Blaickner I still have the paper if you need it. Let me know.
Nov 7 at 10:56 comment added G. Blaickner @WillieWong I am quite late to this question, but it happens that I am also looking for exactly the same paper, but neither the library of my current affiliation nor other well-known internet sources seem to have this publication. Do you still have a copy and mind sharing it with me?
Sep 16, 2021 at 2:49 comment added Pedro Lauridsen Ribeiro I had a xeroxed copy of it quite a few years ago, but I don't know where I left it. As far as I remember, the argument there goes essentially as Deane sketched in his comment. I don't think Aubin obtains the best constants in this paper, because the latter is cited precisely in the landmark J. Diff. Geom. paper where Aubin obtains the best constants for the Sobolev inequality for the first time (also done independently by Talenti).
Sep 15, 2021 at 17:46 comment added Deane Yang I've needed this in the past but never knew this reference. It's pretty straightfoward though, if you don't need a sharp constant. You can use the extension theorem found in Stein's book "Singular Integrals and Differentiability Properties of Functions" on each coordinate patch containing the boundary to extend the function to the full manifold and apply the Sobolev inequality that holds on the compact manifold.
Sep 15, 2021 at 17:22 comment added Willie Wong @E.Schulz: I have a scanned copy of the paper (that I got from the library at my current institution). My email is easy to find. Send me an email and I can send it to you.
Sep 15, 2021 at 17:15 history edited E. Schulz CC BY-SA 4.0
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Sep 15, 2021 at 16:56 comment added E. Schulz I have been looking in University libraries in Zurich and Montreal and could not find it. If someone were to know of a library where I could find it I would contact this library. Also sometimes people have legal copies.
Sep 15, 2021 at 16:38 comment added Alex M. Looking at the site of the Bull. Sc. Math., the journal has been available in digital format only from 1998. As such, the article that you are looking for does not even have a DOI, therefore getting it in physical format from some library seems the only available option.
Sep 15, 2021 at 16:19 comment added Alex M. Ummm... it's not clear what kind of answer you expect. You can look for the journal in which that article was published in the libraries of the universities physically close to you. A Google search makes it clear that it is not available on the internet. Finally, there is the illegal option, that many of us use - but for obvious reasons I shall not state it here. Other than that - what do you hope for?
Sep 15, 2021 at 16:19 history edited YCor
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S Sep 15, 2021 at 16:14 review First questions
Sep 15, 2021 at 16:16
S Sep 15, 2021 at 16:14 history asked E. Schulz CC BY-SA 4.0