H=W
It's a paper showing that two methods of defining Sobolev spaces, one which uses H's with subscripts and superscripts and one that uses W's, give rise to the same spaces.
Thanks to Willie Wong for the following:
Citation information
@ARTICLE{MeySer1964,
author = {Meyers, Norman G. and Serrin, James},
title = {{H = W}},
journal = {Proc. Natl. Acad. Sci. USA},
year = {1964},
volume = {51},
pages = {1055-1056},
number = {6},
file = {MeySer1964.pdf:MeySer1964.pdf:PDF},
owner = {ww278},
timestamp = {2010.05.03},
url = {http://www.pnas.org/content/51/6/1055.short}
}