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math.RA2026

Globalization of Partial Group Actions on Not Necessarily Associative Algebras and Covariant Representations

Mikhailo Dokuchaev, Emmanuel Jerez, José L. Vilca-Rodríguez

We extend the concept of a partial group action to non-associative algebras in a variety \(\mathcal{V}(I)\), solve the globalization problem within \(\mathcal{V}(I)\) and examine i…

math.RA2026

Graded Equivalence for Graded Idempotent Rings

Mikhailo Dokuchaev, Juan Jacobo Simón

In this paper, we extend the study of graded equivalences to the case of general idempotent graded rings. We prove that the existence of a graded equivalence between two categories…

math.RA2026

Homology and cohomology of crossed products by inverse monoid actions and Steinberg algebras

Mikhailo Dokuchaev, Mykola Khrypchenko, Juan Jacobo Simón

Given a unital action of an inverse monoid on an algebra over a filed we produce (co)homology spectral sequences which converge to the Hochschild (co)homology of t…

math.RA2025

Inverse semialgebras and partial actions of Lie algebras

Mikhailo Dokuchaev, Farangis Johari, José L. Vilca-Rodríguez

We introduce the concept of a non-associative (i.e. non-necessarily associtive) inverse semialgebra over a field, the Lie version of which is inspired by the set of all partially d…

math.RA2024

Twisted partial group algebra and related topological partial dynamical system

Mikhailo Dokuchaev, Emmanuel Jerez

Given a group \( G \), a field \( κ\), and a factor set \( σ\) arising from a partial projective \( κ\)-representation of \( G \). This leads to the construction of a topologica…

math.RA2024

Partial generalized crossed products, Brauer groups and a comparison of seven-term exact sequences

Mikhailo Dokuchaev, Hector Pinedo, Itailma Rocha

Given a unital partial action of a group on a commutative ring we denote by the Picard monoid of the isomorphism classes of partially inverti…