By Frédéric Bihan and others

We give sign conditions on the support and coefficients of a sparse system of d generalized polynomials in d variables that guarantee the existence of at least one positive real root, based on degree theory and Gale duality. In the case of integer exponents, we relate our sufficient conditions to... Show more

September 14, 2020

Loading full text...

Similar articles

Loading recommendations...

x1

Sign conditions for the existence of at least one positive solution of a sparse polynomial system

Click on play to start listening