Equivalences of LLT polynomials via lattice paths

David Keating

The LLT polynomials ${\mathcal{L}}_{{\hat{\mathbf{I}}}^2/{\hat{\mathbf{I}}}^3}(X;t)$ are a family of symmetric polynomials indexed by a tuple of (possibly skew-)partitions $\mathbfβ/\mathbfγ= (β^{(1)}…