Timeline for Nonnegativity conditions for a polynomial in two variables?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Feb 16, 2017 at 21:42 | comment | added | Dima Pasechnik | something like this (i.e. one can produce explicit small degrees of s.o.s. forms to multiply with) also works for quaternary forms of degree 4, see arxiv.org/abs/1511.03473 | |
| Sep 23, 2014 at 19:24 | comment | added | Dima Pasechnik | for more variables nothing of this sort is known; Hilbert's (1893) paper substantially uses quite tricky algebraic geometry of complex plane curves (something that nowadays one would explain using en.wikipedia.org/wiki/Theta_characteristic) | |
| Sep 23, 2014 at 19:17 | comment | added | Igor Rivin | Cool! Does this only work for ternary? | |
| Sep 22, 2014 at 19:56 | history | edited | Dima Pasechnik | CC BY-SA 3.0 |
more references, and an explanation
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| Sep 22, 2014 at 19:36 | history | answered | Dima Pasechnik | CC BY-SA 3.0 |