Non-Definite, Symmetric Matrix: Difference between revisions

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[[File:Linear System - Non-Definite, Symmetric Matrix - Space.png|1000px]]
[[File:Linear System - Non-Definite, Symmetric Matrix - Space.png|1000px]]


== Pareto Frontier Improvements Graph ==  
== Space-Time Tradeoff Improvements ==  


[[File:Linear System - Non-Definite, Symmetric Matrix - Pareto Frontier.png|1000px]]
[[File:Linear System - Non-Definite, Symmetric Matrix - Pareto Frontier.png|1000px]]

Revision as of 14:34, 15 February 2023

Description

In this case, we restrict $A$ to be non-definite and symmetric.

Related Problems

Generalizations: General Linear System

Related: Sparse Linear System, Positive Definite, Hermitian Matrix, Toeplitz Matrix, Vandermonde Matrix

Parameters

n: number of variables and number of equations

m: number of nonzero entries in matrix

k: ratio between largest and smallest eigenvalues

Table of Algorithms

Name Year Time Space Approximation Factor Model Reference
Gaussian-Jordan Elimination -150 $O(n^{3})$ $O(n^{2})$ Exact Deterministic
Aasen's method 1971 $O(n^{3})$ $O(n^{2})$ total Exact Deterministic Time

Time Complexity Graph

Linear System - Non-Definite, Symmetric Matrix - Time.png

Space Complexity Graph

Linear System - Non-Definite, Symmetric Matrix - Space.png

Space-Time Tradeoff Improvements

Linear System - Non-Definite, Symmetric Matrix - Pareto Frontier.png