The Secant Conjecture in the Real Schubert Calculus. - Luis David García-Puente; Nickolas Hein; Christopher J. Hillar; Abraham Martín del Campo; James Ruffo; Frank Sottile; Zach Teitler (Exp. Math., 2012)

The Monotone Secant Conjecture in the Real Schubert Calculus. - Nickolas Hein; Christopher J. Hillar; Abraham Martín del Campo; Frank Sottile; Zach Teitler (Exp. Math., 2015)

A Primal-Dual Formulation for Certifiable Computations in Schubert Calculus. - Jonathan D. Hauenstein; Nickolas Hein; Frank Sottile (Found. Comput. Math., 2016)

Modular Catalan numbers. - Nickolas Hein; Jia Huang (Eur. J. Comb., 2017)

Variations of the Catalan numbers from some nonassociative binary operations. - Nickolas Hein; Jia Huang (Discret. Math., 2022)

Certification for polynomial systems via square subsystems. - Timothy Duff; Nickolas Hein; Frank Sottile (J. Symb. Comput., 2022)