Subject: new Hopf listings From: Mark Hovey Date: 16 Apr 1998 07:37:14 +0000 New papers uploaded to Hopf between 4/10/98 and 4/16/98: 1. http://hopf.math.purdue.edu/cgi-bin/generate?/pub/Stanley/stanley1 Title:``Determining Closed Model Category Structures'' Author: Don Stanley AMS-classification number: 55P50 Address: Don Stanley Freie Universitaet Berlin Institut fur Mathematik II Arnimallee 3 14195 Berlin Germany email: stanley@math.fu-berlin.de Abstract: In this paper we give conditions under which a closed model category structure is determined on a category. The conditions are more general than cofibrantly generated. The paper contains two advances in tequniques of giving categories closed model structures. The first is the proof of the lifting property of acyclic cofibrations with respect to the maps in the corresponding factorization. This allows us to have a generating class, as oposed to a set, of acyclic cofibrations. The second is the definition of fibrations as retracts of compositions of maps that are the second maps in the two factorizations. This makes it easier to construct the needed liftings. At the end of the paper we apply our construction to two examples. ---------------------Instructions----------------------------- To subscribe or unsubscribe to this list, send a message to Don Davis at dmd1@lehigh.edu with your e-mail address and name. Please make sure he is using the correct e-mail address for you. To see past issues of this mailing list, point your WWW browser to http://www.cs.wesleyan.edu/Math/Guests/Mark If this doesn't work or is missing a few issues, try http://www.lehigh.edu/~dmd1/public/www-data/algtop.html , which also has the other messages sent to Don's list. To get the papers listed above, point your WWW client (Mosaic, Netscape) to the URL listed. The general Hopf archive URL is http://hopf.math.purdue.edu There are links to conference announcements, Purdue seminars, and other math related things on this page as well. The general xxx archive URL is http://xxx.lanl.gov. More useful is the front end developed by Greg Kuperberg: http://front.math.ucdavis.edu You can also use ftp to hopf.math.purdue.edu, and login as ftp. Then cd to pub. Files are organized by author name, so papers by me are in pub/Hovey. If you want to download a file using ftp, you must type binary before you type get . To put a paper of yours on the archive, cd to /pub/incoming. Transfer the dvi file using binary, by first typing binary then put You should also transfer an abstract as well. Clarence has explicit instructions for the form of this abstract: see http://hopf.math.purdue.edu/pub/submissions.html. In particular, your abstract is meant to be read by humans, so should be as readable as possible. I reserve the right to edit unreadable abstracts. You should then e-mail Clarence at wilker@math.purdue.edu telling him what you have uploaded. For instructions on uploading papers to xxx, see http://front.math.ucdavis.edu I am solely responsible for these messages---don't send complaints about them to Clarence. Thanks to Clarence for creating and maintaining the archive. ------- End of forwarded message ------- ------- End of forwarded message -------