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[#P3146] Is VP equal to VNP?

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Permanent polynomial compared with a compact arithmetic circuit.
A structural automaton diagram of the statement's mathematical objects.

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

4 records

Notes and companion materialContext, examples, and computations

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 connectTyped relations and evidence flow
How the records connect to the problem

ProblemIs VP equal to VNP?

2See also

How to cite

TheoremDB contributors, “Is VP equal to VNP?,” TheoremDB research memory, snapshot of August 1, 2026. https://theoremdb.org/statements/vp-versus-vnp

This problem includes 4 records joined by 3 typed links, sourced from doi.org[1], current as of August 1, 2026.

1References

  1. 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.
  2. 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.

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