p-Adic arithmetic procedures for exact matrix computations
β Scribed by Krishnamurthy, E. V. ;Rao, T. Mahadeva ;Subramanian, K.
- Book ID
- 112978109
- Publisher
- Springer-Verlag
- Year
- 1975
- Tongue
- English
- Weight
- 495 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0370-0089
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We consider the problem of bringing a given matrix into "cyclic form," from which the rational form can be computed easily. Matrices are taken to have p-adic integer entries, and computations are done with rational integer approximations to p-adic integers. We give bounds on the precision necessary
A method for computing the inverse of an (n Γ n) integer matrix A using p-adic approximation is given. The method is similar to Dixon's algorithm, but ours has a quadratic convergence rate. The complexity of this algorithm (without using FFT or fast matrix multiplication) is O(n 4 (log n) 2 ), the s