R-systems

P Galashin, P Pylyavskyy - Selecta Mathematica, 2019 - Springer
Abstract Birational toggling on Gelfand–Tsetlin patterns appeared first in the study of
geometric crystals and geometric Robinson–Schensted–Knuth correspondence. Based on …

The twist for Richardson varieties

P Galashin, T Lam - arXiv preprint arXiv:2204.05935, 2022 - arxiv.org
We construct the twist automorphism of open Richardson varieties inside the flag variety of a
complex semisimple algebraic group. We show that the twist map preserves totally positive …

Beyond Aztec Castles: Toric Cascades in the dP 3 Quiver

T Lai, G Musiker - Communications in Mathematical Physics, 2017 - Springer
Given one of an infinite class of supersymmetric quiver gauge theories, string theorists can
associate a corresponding toric variety (which is a Calabi–Yau 3-fold) as well as an …

Quivers with additive labelings: classification and algebraic entropy

P Galashin, P Pylyavskyy - Documenta Mathematica, 2019 - ems.press
We show that Zamolodchikov dynamics of a recurrent quiver has zero algebraic entropy only
if the quiver has a weakly subadditive labeling, and conjecture the converse. By assigning a …

Integrable systems and cluster algebras

M Gekhtman, A Izosimov - arXiv preprint arXiv:2403.07287, 2024 - arxiv.org
We review several constructions of integrable systems with an underlying cluster algebra
structure, in particular the Gekhtman-Shapiro-Tabachnikov-Vainshtein construction based …

Quivers with subadditive labelings: classification and integrability

P Galashin, P Pylyavskyy - Mathematische Zeitschrift, 2020 - Springer
Strictly subadditive, subadditive and weakly subadditive labelings of quivers were
introduced by the second author, generalizing Vinberg's definition for undirected graphs. In …

Building maximal green sequences via component preserving mutations

E Bucher, J Machacek, E Runburg, A Yeck… - arXiv preprint arXiv …, 2019 - arxiv.org
We introduce a new method for producing both maximal green and reddening sequences of
quivers. The method, called component preserving mutations, generalizes the notion of …

Periodic Y-systems and Nahm sums: the rank 2 case

Y Mizuno - arXiv preprint arXiv:2301.13239, 2023 - arxiv.org
We classify periodic Y-systems of rank 2 satisfying the symplectic property. We find that there
are six such Y-systems. In all cases, the periodicity follows from the existence of two …

Difference equations arising from cluster algebras

Y Mizuno - Journal of Algebraic Combinatorics, 2021 - Springer
We characterize Y/T-system-type difference equations arising from cluster algebras by
triples of matrices, which we call T-data, that have a certain symplectic property. We show …

Linear recurrences for cylindrical networks

P Galashin, P Pylyavskyy - International Mathematics Research …, 2019 - academic.oup.com
We prove a general theorem that gives a linear recurrence for tuples of paths in every
cylindrical network. This can be seen as a cylindrical analog of the Lindström–Gessel …