Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Swann, Andrew"'
Autor:
Madsen, Thomas Bruun, Swann, Andrew
We study complete, simply-connected manifolds with special holonomy that are toric with respect to their multi-moment maps. We consider the cases where there is a connected non-Abelian symmetry group containing the torus. For $\mathrm{Spin}(7)$-manif
Externí odkaz:
http://arxiv.org/abs/2407.03693
Autor:
Lindemann, David, Swann, Andrew
We classify hyperbolic polynomials in two real variables that admit a transitive action on some component of their hyperbolic level sets. Such surfaces are called special homogeneous surfaces, and they are equipped with a natural Riemannian metric ob
Externí odkaz:
http://arxiv.org/abs/2303.18228
Autor:
Freibert, Marco, Swann, Andrew
It has been conjectured by Fino and Vezzoni that a compact complex manifold admitting both a compatible SKT and a compatible balanced metric also admits a compatible K\"ahler metric. Using the shear construction and classification results for two-ste
Externí odkaz:
http://arxiv.org/abs/2203.16638
Autor:
Swann, Andrew Thomas
Simulations were used to assist in both the optimization and experimental support of polymer-supported immobilized homogeneous catalysts. This work is a starting point for using molecular modeling to assist in the design of immobilized homogeneous ca
Externí odkaz:
http://hdl.handle.net/1853/26702
Publikováno v:
In Computer-Aided Design December 2024 177
Autor:
Freibert, Marco, Swann, Andrew
We use the shear construction to construct and classify a wide range of two-step solvable Lie groups admitting a left-invariant SKT structure. We reduce this to a specification of SKT shear data on Abelian Lie algebras, and which then is studied more
Externí odkaz:
http://arxiv.org/abs/2011.04331
Autor:
Macia, Oscar, Swann, Andrew
We study the projective special Kaehler condition on groups, providing an intrinsic definition of homogeneous projective special Kaehler that includes the previously known examples. We give intrinsic defining equations that may be used without resort
Externí odkaz:
http://arxiv.org/abs/1908.01736
Autor:
Madsen, Thomas Bruun, Swann, Andrew
We study $\mathrm{Spin}(7)$-manifolds with an effective multi-Hamiltonian action of a four-torus. On an open dense set, we provide a Gibbons-Hawking type ansatz that describes such geometries in terms of a symmetric $4\times4$-matrix of functions. Th
Externí odkaz:
http://arxiv.org/abs/1810.12962
Autor:
Russo, Giovanni, Swann, Andrew
We consider nearly K\"ahler 6-manifolds with effective 2-torus symmetry. The multi-moment map for the $T^2$-action becomes an eigenfunction of the Laplace operator. At regular values, we prove the $T^2$-action is necessarily free on the level sets an
Externí odkaz:
http://arxiv.org/abs/1809.05304
Autor:
Madsen, Thomas Bruun, Swann, Andrew
Publikováno v:
Geom. Topol. 23 (2019) 3459-3500
We consider $G_2$-manifolds with an effective torus action that is multi-Hamiltonian for one or more of the defining forms. The case of $T^3$-actions is found to be distinguished. For such actions multi-Hamiltonian with respect to both the three- and
Externí odkaz:
http://arxiv.org/abs/1803.06646