34 results on '"Trenkler, Götz"'
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2. On matrices whose Moore–Penrose inverse is idempotent
3. On most perfect magic squares of order four
4. Intersection of three planes revisited – an algebraic approach
5. On column and null spaces of functions of a pair of oblique projectors
6. Polar and singular value decomposition of 3×3 magic squares
7. The Numerical Range of the Luoshu Is a Piece of Cake—Almost
8. A simple parameterization of 3×3 magic squares
9. Rank formulae from the perspective of orthogonal projectors
10. Eigenspaces of the proper rotation matrices
11. Core inverse of matrices
12. Characterizations of EP, normal, and Hermitian matrices
13. Problems
14. Classroom note: An extension of Lagrange's identity to matrices
15. Matrices Which Take a Given Vector into a Given Vector—Revisited
16. Classroom note: Estimation of the cross-product of two mean vectors
17. On the Square Root of aaT + bbT
18. On the Square Root of aa T + bb T
19. Problems
20. The Moore-Penrose inverse and the vector product
21. Problems
22. The Moore?Penrose inverse of a semi-magic square is semi-magic
23. The Moore–Penrose inverse of a semi-magic square is semi-magic
24. Problems
25. ON THE EFFICIENCY OF THE COCHRANE–ORCUTT ESTIMATOR IN THE SERIALLY CORRELATED ERROR COMPONENTS REGRESSION MODEL FOR PANEL DATA
26. On the product of oblique projectors
27. Estimation From Transformed Data Under the Linear Regression Model
28. On the equality of usual and amemiya's partially generalized least squares estimator
29. C430. On the singularity of the sample covariance matrix
30. Assessing coverage-probabilities for approximate minimax estimators with respect to interval restrictions
31. C413. On the moore-penrose inverse of a completely symmetric matrix
32. A note on generalized ridge estimators
33. A curious result on least squares estimation in linear regression
34. On the euclidean distance between biased estimators
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