Skip to content

Formalize Lieb-Sokal differential-operator stability theorem #89

Description

@PerAlexandersson

Theorem

Lean target:

theorem RealStable.liebSokal_multiaffine
    {F G : MvPolynomial σ ℂ}
    (hF : RealStable F) (hG : RealStable G)
    (hFma : Multiaffine F) (hGma : Multiaffine G) :
    applyNegDifferential F G = 0 ∨ RealStable (applyNegDifferential F G)

applyNegDifferential F G denotes the operator F(-∂) {G}. The final signature should use the real-stability/multivariate API chosen in #87.

Reference

Gribinski--Marcus, A rectangular additive convolution for polynomials, Theorem 2.4, cited there as the Lieb-Sokal theorem.

Dependencies

Notes

This theorem is the second main stability input for Gribinski--Marcus Theorem 2.3. It should be proved or imported in a general enough form to apply to the polarized p and q polynomials in the proof of the rectangular additive convolution theorem.

Metadata

Metadata

Assignees

No one assigned

    Labels

    enhancementNew feature or request

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions