From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/3641 Path: news.gmane.org!not-for-mail From: Anders Kock Newsgroups: gmane.science.mathematics.categories Subject: preprints available Date: Mon, 26 Feb 2007 17:22:37 +0100 Message-ID: NNTP-Posting-Host: main.gmane.org Content-Type: text/plain; charset="us-ascii" ; format="flowed" X-Trace: ger.gmane.org 1241019428 9603 80.91.229.2 (29 Apr 2009 15:37:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:37:08 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Tue Feb 27 21:54:14 2007 -0400 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Tue, 27 Feb 2007 21:54:14 -0400 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1HMDsV-0001zm-Cu for categories-list@mta.ca; Tue, 27 Feb 2007 21:45:11 -0400 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 35 Original-Lines: 38 Xref: news.gmane.org gmane.science.mathematics.categories:3641 Archived-At: Dear all, This is to announce the availability of two preprints. 1) "Group valued differential forms revisited" We study the relationship between combinatorial group valued differential forms and classical differential forms with values in the corresponding Lie algebra. In particular, we compare simplicial coboundary and exterior derivative. The results represent strengthening of results I obtained in 1982. This preprint can be downloaded from http://www.imf.au.dk/publs?id=636 or from my home page http://home.imf.au.dk/kock/ 2) "Some matrices with nilpotent entries, and their determinants" We study algebraic properties of matrices whose rows are mutual neighbours, and are also neigbours of 0 (neighbour in the sense of a certain nilpotency condition). The intended application is in synthetic differential geometry. For a square matrix of this kind, the product of the diagonal entries equals the determinant, modulo a factor n! This preprint can be downloaded from http://arxiv.org/abs/math.RA/0612435 or from my home page (address as above). Yours Anders