Robust Satisfiability of Systems of Equations
@article{Franek2015RobustSO, title={Robust Satisfiability of Systems of Equations}, author={P. Franek and Marek Krc{\'a}l}, journal={Journal of the ACM (JACM)}, year={2015}, volume={62}, pages={1 - 19} }
We study the problem of robust satisfiability of systems of nonlinear equations, namely, whether for a given continuous function f:K → Rn on a finite simplicial complex K and α>0, it holds that each function g:K → Rn such that ║g−f║∞ ≤ α, has a root in K. Via a reduction to the extension problem of maps into a sphere, we particularly show that this problem is decidable in polynomial time for every fixed n, assuming dim K ≤ 2n−3. This is a substantial extension of previous computational… CONTINUE READING
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