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A177970: formalize the Chebyshev root-sign bridge for consecutive proper position

Status: Open.

#429 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 24, 2026

Variable-diagonal banded Hessenberg determinant recurrence

Status: Open.

#425 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 24, 2026

A390883 prerequisite: shifted Jacobi interlacing and Euler-inverse pencil backend

Status: Open.

#424 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 24, 2026

Finite-free additive convolution and half-integer rectangular parity lifts

Status: Open.

#422 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 24, 2026

Oscillatory matrices: simple spectrum and strict leading-principal charpoly interlacing

Status: Open.

#421 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 24, 2026

A176331 prerequisite: Jacobi (0,2) primitive zero-location backend

Status: Open.

#420 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 23, 2026

Track LGV formalization outside RealRooted

Status: Open.

#418 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 23, 2026

Formalize real-rooted descent polynomials of parking functions

enhancementNew feature or requestNew feature or request

Status: Open.

#417 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 23, 2026

Future: extract a standalone generic LGV library

Status: Open.

#416 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 22, 2026

Brenti Problem 2.6: does the τ-polynomial τ(G;x) have only real roots for every graph G?

Status: Open.

#406 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 21, 2026

Borcea–Brändén determinantal stability: det(A + Σ zᵢBᵢ) is stable for Hermitian A and PSD Bᵢ

Status: Open.

#400 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 20, 2026

Brändén–Leite Def 3.2 + Thm 3.6/3.7: chain polynomials, subdivision operator, and the induction

Status: Open.

#399 In PerAlexandersson/RealRooted;

· PerAlexandersson opened on Aug 20, 2026