10.03.2015 Views

v2009.01.01 - Convex Optimization

v2009.01.01 - Convex Optimization

v2009.01.01 - Convex Optimization

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

CONVEX OPTIMIZATION & EUCLIDEAN DISTANCE GEOMETRY 11<br />

7 Proximity problems 495<br />

7.1 First prevalent problem: . . . . . . . . . . . . . . . . . . . . . 503<br />

7.2 Second prevalent problem: . . . . . . . . . . . . . . . . . . . . 514<br />

7.3 Third prevalent problem: . . . . . . . . . . . . . . . . . . . . . 525<br />

7.4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535<br />

A Linear algebra 537<br />

A.1 Main-diagonal δ operator, λ , trace, vec . . . . . . . . . . . . 537<br />

A.2 Semidefiniteness: domain of test . . . . . . . . . . . . . . . . . 542<br />

A.3 Proper statements . . . . . . . . . . . . . . . . . . . . . . . . . 545<br />

A.4 Schur complement . . . . . . . . . . . . . . . . . . . . . . . . 557<br />

A.5 eigen decomposition . . . . . . . . . . . . . . . . . . . . . . . . 561<br />

A.6 Singular value decomposition, SVD . . . . . . . . . . . . . . . 564<br />

A.7 Zeros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569<br />

B Simple matrices 577<br />

B.1 Rank-one matrix (dyad) . . . . . . . . . . . . . . . . . . . . . 578<br />

B.2 Doublet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 583<br />

B.3 Elementary matrix . . . . . . . . . . . . . . . . . . . . . . . . 584<br />

B.4 Auxiliary V -matrices . . . . . . . . . . . . . . . . . . . . . . . 586<br />

B.5 Orthogonal matrix . . . . . . . . . . . . . . . . . . . . . . . . 591<br />

C Some analytical optimal results 595<br />

C.1 properties of infima . . . . . . . . . . . . . . . . . . . . . . . . 595<br />

C.2 trace, singular and eigen values . . . . . . . . . . . . . . . . . 596<br />

C.3 Orthogonal Procrustes problem . . . . . . . . . . . . . . . . . 602<br />

C.4 Two-sided orthogonal Procrustes . . . . . . . . . . . . . . . . 604<br />

D Matrix calculus 609<br />

D.1 Directional derivative, Taylor series . . . . . . . . . . . . . . . 609<br />

D.2 Tables of gradients and derivatives . . . . . . . . . . . . . . . 630<br />

E Projection 639<br />

E.1 Idempotent matrices . . . . . . . . . . . . . . . . . . . . . . . 643<br />

E.2 I − P , Projection on algebraic complement . . . . . . . . . . . 648<br />

E.3 Symmetric idempotent matrices . . . . . . . . . . . . . . . . . 649<br />

E.4 Algebra of projection on affine subsets . . . . . . . . . . . . . 654<br />

E.5 Projection examples . . . . . . . . . . . . . . . . . . . . . . . 655

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!