The classification of quantum $\mathbb{P}^2$s was completed by M. Artin et al. decades ago, but the classification of quadratic algebras that are viewed as quantum $\mathbb{P}^3$s is still an open problem. Based on work of M. Van den Bergh, it is believed that a ``generic'' quadratic quantum $\mathbb{P}^3$ should have a finite point scheme and a one-dimensional line scheme. Two families of quadratic quantum $\mathbb{P}^3$s with these geometric properties are presented herein, where each family member has a line scheme that is either a union of lines or is a union of a line, a conic and a curve. Moreover, we prove that, under certain conditions, if $A$ is a quadratic quantum $\mathbb{P}^3$ that contains a subalgebra $B$ that is a quadratic quantum $\mathbb{P}^2$, then the point scheme of $B$ embeds in the line scheme of $A$.
Regular algebra quadratic algebra Ore extension point module line module point scheme line scheme quantum
Primary Language | English |
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Subjects | Algebra and Number Theory |
Journal Section | Articles |
Authors | |
Early Pub Date | February 20, 2025 |
Publication Date | |
Submission Date | August 21, 2024 |
Acceptance Date | December 22, 2024 |
Published in Issue | Year 2025 Early Access |