1 citations · 1 across the 6 of their papers we have counts for
6 papers
The loss value of multilinear regression
Helmut Kahl
Determinant formulas are presented for: a certain positive semidefinite, hermitian matrix; the loss value of multilinear regression; the multiple linear regression coefficient.
On the final limit of a transition matrix
Helmut Kahl
An efficient algorithm is presented for computation of the limit of exp(t A) for t towards infinity where A denotes an intensity matrix of finite dimension.
Symmetric Matrices: Theory and Applications
Helmut Kahl
This text is a survey on symmetric matrices. It serves as a script for a module to be taught at university.
Measuring quadric sectors at centre
Helmut Kahl
Sectors at centre of affine quadrics with point symmetry are investigated over arbitrary fields of characteristic different from two. As an application we demonstrate nice formulas…
An euclidean affine invariant of quadrilaterals
Helmut Kahl
A certain real number, depending on two neighbouring sides of a quadrilateral and the diagonal meeting these two sides at their common point, is shown to be invariant under affinit…
The area of a sector at centre of a planar quadric
Helmut Kahl
Three linearly dependent and pairwise linearly independent vectors of an euclidian space uniquely determine a planar quadric with symmetry centre in the origin. A rather simple for…