[#P3146] Is VP equal to VNP?
Problem. Over a fixed field of characteristic zero, is every polynomial family in \(\mathrm{VNP}\) computable by polynomial-size arithmetic circuits of polynomial formal degree, equivalently is \(\mathrm{VP}=\mathrm{VNP}\)?
1Context
Known frontier: Exponential lower bounds are known for restricted arithmetic models, while unrestricted explicit lower bounds remain far smaller. Open boundary: No superpolynomial lower bound for an explicit VNP family in general arithmetic circuits is known.
2Problem setup
Definition 1 (VP). Polynomial-degree polynomial families computed by polynomial-size arithmetic circuits.
Definition 2 (VNP). Families expressible as exponential Boolean sums of a VP family.
Remark 1. This is the algebraic analogue of P versus NP. Valiant's permanent family is VNP-complete, so polynomial-size arithmetic circuits for the permanent would imply equality.
3What counts as a solution
- Construct polynomial-size circuits for every VNP family, equivalently for a standard VNP-complete family.
- Or prove an explicit VNP family requires superpolynomial arithmetic-circuit size.
1Status
Current status (Current status and exact unresolved remainder). OPEN as checked on 2026-08-01. Strongest checked neighboring result: Exponential lower bounds are known for restricted arithmetic models, while unrestricted explicit lower bounds remain far smaller. Exact unresolved remainder: No superpolynomial lower bound for an explicit VNP family in general arithmetic circuits is known.[1][2]
1Records
Notes and companion material
Original intake status. OPEN as checked on 2026-08-01. Strongest checked neighboring result: Exponential lower bounds are known for restricted arithmetic models, while unrestricted explicit lower bounds remain far smaller. Exact unresolved remainder: No superpolynomial lower bound for an explicit VNP family in general arithmetic circuits is known.
- Equivalent-formulation queries: VP versus VNP open 2025 survey; permanent arithmetic circuit lower bound VP VNP current
- Strongest checked neighboring result: Exponential lower bounds are known for restricted arithmetic models, while unrestricted explicit lower bounds remain far smaller.
- Exact unresolved remainder: No superpolynomial lower bound for an explicit VNP family in general arithmetic circuits is known.
How the 4 records connect
ProblemIs VP equal to VNP?
2See also
- Is there a truly subcubic algorithm for weighted APSP?theoretical computer science
- Strong Exponential Time Hypothesistheoretical computer science
- Polynomial-time recovery of planted cliques below the square-root scaletheoretical computer science
How to cite
TheoremDB contributors, “Is VP equal to VNP?,” TheoremDB research memory, snapshot of August 1, 2026. https://theoremdb.org/statements/vp-versus-vnpThis page as plain text: vp-versus-vnp.md
This problem includes 4 records joined by 3 typed links, sourced from doi.org[1], current as of August 1, 2026.
1References
- Packet source. L. G. Valiant, “Completeness classes in algebra”. Proceedings of the eleventh annual ACM symposium on Theory of computing - STOC '79 (1979), 249-261. DOI 10.1145/800135.804419. VP, VNP, and permanent completeness. ↗journal article · primary source · checked 2026-08-01Source use: original summary.Introduces the classes and the complete-family framework.Also cited at L. Valiant, Completeness classes in algebra, STOC 1979. VP, VNP, and permanent completeness.Source used to assess the problem's recorded status.For Is VP equal to VNP?: This is the dated publication status for the canonical target Is VP equal to VNP?.Source named by the research packet.
- ECCC TR25-083, Polynomial factorisation and algebraic complexity survey (2025). Section 4.5 and Open Problem 4.5.1. ↗journal article · secondary source · ECCC TR25-083 record checked 2026-08-01 · checked 2026-08-01Source use: original summary.Reviews current algebraic classes and records unresolved separations including VP versus VNP.Source used to assess the problem's recorded status.For Is VP equal to VNP?: Reviews current algebraic classes and records unresolved separations including VP versus VNP.
Original TheoremDB editorial statement and source synthesis; external works are used for citation only.