2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228324We use free fermion methods to re-derive a result of Okounkov and Reshetikhin relating charged fermions to random plane partitions, and to extend it to relate neutral fermions to strict plane partitions.21 pages, figures included in latexMathematical PhysicsHigh Energy Physics - Theorytext