Abstract:We study the logical relation of the P-NP separation conjecture in the Blum-Shub-Smale-model over the complex numbers with the P-NP separation conjecture in Valiant's algebraic model. This amounts to comparing Hilbert's Nullstellensatz Problem, that is, deciding feasibility of a given system of polynomial equations over the complex numbers, with the problem of evaluating the permanent of a given complex matrix. We compare the respective uniform models of computations and prove that $P_C\ne NP_C$ in the Blum-Shub-Smale-model over $C$ implies the separation $VP^0(u)\ne VNP^0(u)$ of the uniform versions of Valiant's constant-free complexity classes over $C$. For the nonuniform models we show the analogous implication: the separation $P^0_C(nu)\ne NP^0_C(nu)$ of the nonuniform, constant-free Blum-Shub-Smale classes over $C$ implies the separation $VP^0\ne VNP^0$ of Valiant's constant-free complexity classes over $C$. In the reverse direction, we conjecture that $VNP_C\not\subseteq\overline{VP}_C$ implies that $P_C(nu)\ne NP_C(nu)$.
From: Peter Bürgisser [view email]
[v1]
Tue, 23 Jun 2026 19:51:42 UTC (34 KB)
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