In this paper, an image encryption algorithm based on the H-fractal and dynamic self-invertible matrix is proposed. The H-fractal diffusion encryption method is firstly used in this encryption ...

Abstract: Hill cipher's susceptibility to cryptanalysis has rendered it unusable in practice, it still serves an important pedagogical role in both cryptology and linear algebra. Hill cipher requires ...

Drazin inverses and their modern generalisations constitute a pivotal area of operator theory within Banach algebras. These inverse concepts extend the classic notion of the matrix inverse to settings ...

Abstract: This letter extends previous work on contravariant adaptation by providing a formula for the contravariant (natural) gradient on the manifold of multivariable, causal, invertible, finite ...

Sankhyā: The Indian Journal of Statistics, Series A (1961-2002), Vol. 33, No. 3 (Sep., 1971), pp. 289-300 (12 pages) This is a sequel to an earlier paper by the authors on the same subject presented ...

ith row is the value of thb spline basis at ai. I want to know if the matrix K invertible? I know K is invertible for nurbs basis. I checked some papers related to thb and didn't find this proof.

This is a preview. Log in through your library . Abstract Expressions are obtained for the determinant and inverse of the covariance matrix of a set of n consecutive observations on a mixed ...