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math.NA2025
An efficient algorithm for the minimal least squares solution of linear system with indefinite symmetric matrices
Ibai Coria, Gorka Urkullu, Haritz Uriarte +1
In this work, a new algorithm for solving symmetric indefinite systems of linear equations is presented. It factorizes the matrix into the form LDLt using Jacobi rotations in order…
math.NA2024★ 6 cited
A non-damped stabilization algorithm for multibody dynamics
Igor Fernandez de Bustos, Haritz Uriarte, Gorka Urkullu +1
The stability of integrators dealing with high order Differential Algebraic Equations (DAEs) is a major issue. The usual procedures give rise to instabilities that are not predicte…