3 citations · 3 across the 3 of their papers we have counts for
4 papers
Quaternionic complex manifolds and fixed-point sets of -actions
Kazuyuki Hasegawa
In this paper, we study fixed-point sets of -actions and compatible complex structures on quaternionic manifolds. We obtain an equation involving the first Chern classes of…
The H/Q-correspondence and a generalization of the supergravity c-map
Vicente Cortés, Kazuyuki Hasegawa
Given a hypercomplex manifold with a rotating vector field (and additional data), we construct a conical hypercomplex manifold. As a consequence, we associate a quaternionic manifo…
The quaternionic/hypercomplex-correspondence
Vicente Cortés, Kazuyuki Hasegawa
Given a quaternionic manifold with a certain -symmetry, we construct a hypercomplex manifold of the same dimension. This construction generalizes the quater…
Twistor lifts and factorization for conformal maps from a surface to the Euclidean four-space
Kazuyuki Hasegawa, Katsuhiro Moriya
A conformal map from a Riemann surface to the Euclidean four-space is explained in terms of its twistor lift. A local factorization of a differential of a conformal map is obtained…