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math.AG2026

Supercycles, stable supermaps and SUSY Nori motives

Ugo Bruzzo, Daniel Hernandez Ruiperez, Yuri I. Manin

We define stable supercurves and stable supermaps, and based on these notions we develop a theory of Nori motives for the category of stable supermaps of SUSY curves with punctures…

math.AG2026

Moduli of stable supermaps

Ugo Bruzzo, Daniel Hernández Ruipérez

We review the notion of stable supermap from SUSY curves to a fixed target superscheme, and prove that when the target is (super)projective, stable supermaps are parameterized by a…

math.AG2025

An asymptotic description of the Noether-Lefschetz components in toric varieties

Ugo Bruzzo, William D. Montoya

We extend the definition of Noether-Leschetz components to quasi-smooth hypersurfaces in a projective simplicial toric variety of dimension 2k+1, and prove that asymptotically the…

math.AG2025

Foundations of superstack theory

Ugo Bruzzo, Daniel Hernández Ruipérez

In view of applications to the construction of moduli spaces of objects in algebraic supergeometry, we start a systematic study of stacks in that context. After defining a supersta…

math.AG2025

On the exceptional set of crepant resolutions of abelian singularities

Ugo Bruzzo, Fábio Arceu Ferreira

Let G be a finite abelian subgroup of SL(n,C), and suppose there exists a toric crepant resolution phi: X -- > C^n/G. We prove that for each component E of the exceptional set of p…

math.AG2025

Notes on fundamental algebraic supergeometry. Hilbert and Picard superschemes

Ugo Bruzzo, Daniel Hernandez Ruiperez, Alexander Polishchuk

These notes aim at providing a complete and systematic account of some foundational aspects of algebraic supergeometry, namely, the extension to the geometry of superschemes of man…