Explicit inverses and condition numbers of certain circulants

Charmonman, S.; Julius, R. S.

doi:10.1090/S0025-5718-1968-0226831-9

Explicit inverses and condition numbers of certain circulants
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by S. Charmonman and R. S. Julius PDF

Math. Comp. 22 (1968), 428-430 Request permission

Abstract:

Explicit inverses and condition numbers of two test-circulants with first rows $\{ a,a + h, \cdots ,a + (n - 1)h\}$ and $\{ a,ah, \cdots ,a{h^{n - 1}}\}$ respectively are given in terms of the parameters defining the circulants.

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