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- From: lafollet@romulus (Paul Lafollete)
- Subject: matrix question
- Message-ID: <Btnn3G.5Fz@news.cso.uiuc.edu>
- Summary: looking for info about a certain class of matr4ices
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Date: Thu, 27 Aug 1992 18:23:40 GMT
- Keywords: matrix, inverse, polynomial
- Lines: 31
-
-
- I am looking for information about matrices of the following form.
-
- A(0,0) = M (some positive integer)
-
- M - 1
- ----------
- \
- A(i,j) = \ (i+j)K
- / X for i,j = 0..N-1
- /
- -----------
- K = 0
-
-
- A is thus an NxN symmetric matrix of polymonials, each of which has
- M non-zero terms (excepting the element A(0,0)).
-
- I would like to know what is known about such beasts. In particular,
- I conjecture that A has no inverse when M < N. Is this true? Is it
- obvious? What other interesting properties does A have?
-
- I would guess that these are well studied objects, and so I would
- appreciate any references any of you might be able to give me
- where I could start reading. Thanks in advance.
-
- Paul LaFollette
- CIS Dept.
- Temple University
- lafollet@astro.ocis.temple.edu
- lafollet@ws5.cis.temple.edu
-