activity
20232026
collaborators

6 papers

math.AG2026

Lagrangian correspondences of nonabelian Hodge type and shifted twistor structures

Jacob Kryczka, Yuuji Tanaka, Shing-Tung Yau

Classical nonabelian Hodge theory identifies Dolbeault and de Rham moduli spaces by providing a real-analytic isomorphism. In this paper, motivated by the Kapustin--Witten theory,…

math.AG2025

Tyurin Degenerations, Derived Lagrangians and Categorification of DT Invariants

Jacob Kryczka, Artan Sheshmani

We consider the moduli space of rigidified perfect complexes with support on a general complete intersection Calabi-Yau threefold and its Tyurin degeneration $X\rightsquigarrow…

math.AG2025

The -Geometric Hilbert Scheme -- Part I: Involutivity and Stability

Jacob Kryczka, Artan Sheshmani

We construct a moduli space of formally integrable and involutive ideal sheaves arising from systems of partial differential equations (PDEs) in the algebro-geometric setting, by i…

math.AG2024

The -Geometric Hilbert Scheme -- Part II: Hilbert and Quot DG-Schemes

Jacob Kryczka, Artan Sheshmani

This is the second in a series of two papers developing a moduli-theoretic framework for differential ideal sheaves associated with formally integrable, involutive systems of algeb…

math.AG2024

Derived Moduli Spaces of Nonlinear PDEs II: Variational Tricomplex and BV Formalism

Jacob Kryczka, Artan Sheshmani, Shing-Tung Yau

This paper is the second in a series of works dedicated to studying non-linear partial differential equations via derived geometric methods. We study a natural derived enhancement…

math.AG2023

Derived Moduli Spaces of Nonlinear PDEs: Singular Propagations

Jacob Kryczka, Artan Sheshmani, Shing-Tung Yau

We construct a sheaf theoretic and derived geometric machinery to study nonlinear partial differential equations and their singular supports. We establish a notion of derived micro…