bio | website | dzinn.com |
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location | UC Davis, CA, USA | |
age | ||
visits | member for | 4 years, 9 months |
seen | Feb 3 '14 at 1:02 | |
stats | profile views | 37 |
Aug 8 |
awarded | Editor |
Aug 8 |
comment |
Finding regions where multi-variate polynomials are positive
Thank you for pointing this out. Sorry, yes, it was a typo. I meant P_j to map to $\mathbb Z$ and not just to $\mathbb N$. I changed it in the question above. |
Aug 8 |
revised |
Finding regions where multi-variate polynomials are positive
edited body; edited title |
Aug 8 |
awarded | Scholar |
Aug 8 |
accepted | Finding regions where multi-variate polynomials are positive |
Aug 8 |
comment |
Finding regions where multi-variate polynomials are positive
THANK YOU! This looks like a correct proof to me. |
Aug 8 |
comment |
Finding regions where multi-variate polynomials are positive
Thank you for your answer! Unfortunately, my issue is not to test which polynomials are the same. I need the conjecture above in another proof, which would use the existence of the above S_i to show that some other polynomials are the same. Besides the probabilistic Schwartz-Zippel lemma, there is a decision procedure to test whether two multi-variate polynomials are the same. The procedure just extends the fact that a polynomial of degree n has at most n roots to the multi-variate case. [N. Alon and M. Tarsi. Colorings and orientations of graphs. Combinatorica, 12(2):125134, 1992.] |
Aug 6 |
awarded | Student |
Aug 5 |
asked | Finding regions where multi-variate polynomials are positive |