Week |
Contents |
Week 1 |
Course overview, discretization of ODE(motivation for linear system of equations), Reiview of basic properties about matrices |
Week 2 |
Reivew of diagonalizability of matrices, spectral theorem symmetric matrices, positive square root of positive semidefinte matrices, Generalized eigenvalue problem, Sensitivity and condtioning, absolute and relative error, floating point arithemetic |
Week 3 |
Norms, matrix norms, induced norms, Matrix p-norms, condtion number |
Week 4 |
condition number, perturbing the coefficient matrix A and/or the vector b in the linear system Ax=b, Scaling and condition number |
Week 5 |
Back substitution, Gaussinan elimination, LU decomposition, pivoting |
Week 6 | Cholesky decomposition, Plane rotator(Givens rotator), Reflector(Householder transformation), QR decomposition(Proofs using rotator and reflectors) |
Week 7 | Least squares problems, revision for mid-semester |
Mid semester | 18.02.2019 to 26.02.2019 |
Week 8 | Singular value decomposition(SVD) |
Week 9 | SVD and least squares problem, Low rank approximation |
Week 10 | Pseudo inverse, sensitivity analysis for SVD |
Week 11 | Eigenvalue problems, Gershgorin's theorem, Improved Gershgorin's theorem |
Week 12 | Improved Gershgorin's theorem(cont.), Rayleigh principle, Courant–Fischer min-max principle |
Week 13 | Sylvester's law of inertia, Bauer-Fike theorem, Sensitivity analysis for eigenvalues |
Week 14 & 15 | The power method, inverse iteration by von Wielandt, Jacobi method, Householder reduction to Hessenberg form, QR algorithm. |