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v2009.01.01 - Convex Optimization

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588 APPENDIX B. SIMPLE MATRICES<br />

B.4.2<br />

Schoenberg auxiliary matrix V N<br />

1. V N = 1 √<br />

2<br />

[ −1<br />

T<br />

I<br />

2. V T N 1 = 0<br />

3. I − e 1 1 T = [ 0 √ 2V N<br />

]<br />

4. [ 0 √ 2V N<br />

]<br />

VN = V N<br />

5. [ 0 √ 2V N<br />

]<br />

V = V<br />

]<br />

∈ R N×N−1<br />

6. V [ 0 √ 2V N<br />

]<br />

=<br />

[<br />

0<br />

√<br />

2VN<br />

]<br />

7. [ 0 √ 2V N<br />

] [<br />

0<br />

√<br />

2VN<br />

]<br />

=<br />

[<br />

0<br />

√<br />

2VN<br />

]<br />

8. [ 0 √ 2V N<br />

] †<br />

=<br />

[ 0 0<br />

T<br />

0 I<br />

]<br />

V<br />

9. [ 0 √ 2V N<br />

] †<br />

V =<br />

[<br />

0<br />

√<br />

2VN<br />

] †<br />

10. [ 0 √ ] [ √ ] †<br />

2V N 0 2VN = V<br />

11. [ 0 √ [ ]<br />

] † [ √ ] 0 0<br />

T<br />

2V N 0 2VN =<br />

0 I<br />

12. [ 0 √ ] [ ]<br />

0 0<br />

2V T<br />

N = [ 0 √ ]<br />

2V<br />

0 I<br />

N<br />

[ ] [ ]<br />

0 0<br />

T [0 √ ] 0 0<br />

T<br />

13.<br />

2VN =<br />

0 I<br />

0 I<br />

14. [V N<br />

1 √<br />

2<br />

1 ] −1 =<br />

[ ]<br />

V<br />

†<br />

N<br />

√<br />

2<br />

N 1T<br />

15. V † N = √ 2 [ − 1 N 1 I − 1 N 11T] ∈ R N−1×N ,<br />

(<br />

I −<br />

1<br />

N 11T ∈ S N−1)<br />

16. V † N 1 = 0<br />

17. V † N V N = I

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