activity
20212026
most citedSymmetric and skew-symmetric complex structures

5 citations · 9 across the 15 of their papers we have counts for

collaborators

16 papers

cs.AI2026

PhySGA: A Physics-Space Grounded Agentic Framework for Generalizable and Interactive 3D Composition

Weichen Lyu, Chong Xia, Mingyu Dong +3

3D object composition is pivotal to digital content creation and robot simulation, while also serving as a critical testbed for physical intelligence in foundation models. Previous…

math.DG2026

Kenmotsu manifolds and spin-c Killing spinors

José Luis Carmona Jiménez, Alejandro Gil-García, C. S. Shahbazi

Using the theory of complex spinorial forms, we prove that an odd-dimensional Riemannian manifold admits a pure spin-c Killing spinor with an imaginary Killing function if and…

math.DG2026

Torsion parallel pure spinors on neutral manifolds

Alejandro Gil-García

We study irreducible real pure spinors on pseudo-Riemannian manifolds of neutral signature using the theory of real spinorial forms. We prove that the square of such a spinor is a…

math.DG2026

Sasakian manifolds and spin-c Killing spinors

Alejandro Gil-García, C. S. Shahbazi

Using the theory of complex spinorial forms, we prove that an odd-dimensional Riemannian manifold admits a pure spin-c Killing spinor with a real Killing constant $α\in\mathbb{R}^{…

math.DG2026

Complex spinorial forms, Brinkmann four-manifolds, and self-dual bundle gerbes

Alejandro Gil-García, C. S. Shahbazi

We develop the differential theory of complex spinorial forms associated with irreducible complex spinors across all dimensions and signatures. This framework enables the study of…

math.DG2026

Left-invariant harmonic spinors on three-dimensional Lie groups

Alejandro Gil-García, Giovanni Russo

We study the existence of left-invariant harmonic spinors on three-dimensional Lie groups equipped with a left-invariant pseudo-Riemannian metric. An existing formula for the spin…

math.DG2025

The algebraic square of an irreducible complex spinor

Alejandro Gil-García, C. S. Shahbazi

We characterize, in every dimension and signature, the algebraic squares of an irreducible complex spinor as a pair of exterior forms satisfying a prescribed system of algebraic re…

math.DG2025

Almost abelian pseudo-Kähler Lie algebras

Diego Conti, Alejandro Gil-García

We study invariant pseudo-Kähler structures on a solvmanifold such that the Lie algebra is almost abelian, that is ,…

math.DG2025

Quaternionic Kähler manifolds fibered by solvsolitons

Vicente Cortés, Alejandro Gil-García, Markus Röser

This paper is concerned with the geometry of principal orbits in quaternionic Kähler manifolds of cohomogeneity one. We focus on the complete cohomogeneity one examples obtaine…

math.DG2024

Born Lie algebras

Alejandro Gil-García, Paula Naomi Pilatus

We show that every Born Lie algebra can be obtained by the bicross product construction starting from two pseudo-Riemannian Lie algebras. We then obtain a classification of all Lie…

math.DG2024

Parallel spinors for and isotropic structures

Alejandro Gil-García, C. S. Shahbazi

We obtain a correspondence between irreducible real parallel spinors on pseudo-Riemannian manifolds of signature and solutions of an associated differential system…

math.DG2024

Symmetries of one-loop deformed q-map spaces

Vicente Cortés, Alejandro Gil-García, Danu Thung

Q-map spaces form an important class of quaternionic Kähler manifolds of negative scalar curvature. Their one-loop deformations are always inhomogeneous and have been used to const…

math.DG2023★ 2 cited

Pseudo-Kähler and hypersymplectic structures on semidirect products

Diego Conti, Alejandro Gil-García

We study left-invariant pseudo-Kähler and hypersymplectic structures on semidirect products ; we work at the level of the Lie algebra .…

math.DG2023★ 1 cited

Moduli spaces of (co)closed -structures on nilmanifolds

Giovanni Bazzoni, Alejandro Gil-García

We compute the dimensions of some moduli spaces of left-invariant closed and coclosed -structures on 7-dimensional nilmanifolds, showing that they are not related to…

math.DG2022★ 1 cited

A class of locally inhomogeneous complete quaternionic Kähler manifolds

Vicente Cortés, Alejandro Gil-García, Arpan Saha

We prove that the one-loop deformation of any quaternionic Kähler manifold in the class of c-map spaces is locally inhomogeneous. As a corollary, we obtain that the full isometry g…

math.DG2021★ 5 cited

Symmetric and skew-symmetric complex structures

Giovanni Bazzoni, Alejandro Gil-García, Adela Latorre

On a complex manifold , we interpret complex symplectic and pseudo-Kähler structures as symplectic forms with respect to which is, respectively, symmetric and skew-symme…