Timeline for Erich Stiemke biography
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 30, 2018 at 2:39 | history | edited | j.c. | CC BY-SA 4.0 |
fix typos, add link to first reference
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| May 30, 2018 at 0:10 | history | edited | Martin Sleziak | CC BY-SA 4.0 |
added links to papers
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| May 25, 2018 at 10:20 | comment | added | Peter Heinig | @Cherng-tiaoPerng: many thanks for pointing out, and sorry for the late answer (didn't look earlier). I corrected the oversight; however, I corrected it in the antecedent, not the conclusion of the implication (because the usual convention nowadays is to imagine columns as 'vertical' and rows as 'horizontal', and to imagine the rows of the matrix to correspond to the coefficients in the linear equations). | |
| May 25, 2018 at 10:15 | history | edited | Peter Heinig | CC BY-SA 4.0 |
Corrected an error I made in stating Stiemke's 1915 result. Thanks to a commenter for pointing it out..
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| May 19, 2018 at 20:28 | comment | added | Richard Stanley | Stiemke's 1915 theorem follows immediately from the duality theorem for linear programming and is considered a forerunner of the duality theorem. See for instance Chapter 7 of A. Schrijver, Theory of Integer and Linear Programming. | |
| May 19, 2018 at 3:50 | comment | added | Cherng-tiao Perng | The last statement should be "then there exists $v\in {\mathbb R}^n$ having all components strictly positive such that $v^TA=0$". | |
| May 18, 2018 at 21:44 | comment | added | Nik Weaver | I don't understand the theorem --- take $n = 2$ and $m = 1$ and $A = \left[\begin{matrix}1\cr -1\end{matrix}\right]$ ...? | |
| May 18, 2018 at 20:11 | history | edited | Peter Heinig | CC BY-SA 4.0 |
Additions.
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| May 18, 2018 at 20:08 | comment | added | Peter Heinig | @AlexM.: only one university in Berlin. Nowadays there are three. | |
| May 18, 2018 at 19:59 | comment | added | Alex M. | "there was only one such before WW2" - I beg your pardon: one such what? | |
| May 18, 2018 at 19:44 | history | answered | Peter Heinig | CC BY-SA 4.0 |