Results 11 to 20 of about 4,018,148 (250)

Noncommutative Twistor Space

Letters in Mathematical Physics, 2001
10 pages, Plain ...
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MHV diagrams in momentum twistor space [PDF]

Journal of High Energy Physics, 2010
36 pages, 13 ...
Bullimore, Mathew, Mason, Lionel, Skinner, David   +2 more
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Twistor Spaces with Meromorphic Functions [PDF]

Proceedings of the American Mathematical Society, 1991
Among the class of Kähler surfaces with zero scalar curvature, only the twistor space of those surfaces which are also Ricci-flat can admit nonconstant meromorphic functions. Moreover, the transcendental degree of the function field of the twistor space over such surfaces is equal to one.
Y. S. Poon
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S-duality in twistor space [PDF]

Journal of High Energy Physics, 2012
Abstract In type IIB string compactifications on a Calabi-Yau threefold, the hypermultiplet moduli space $ {\mathcal{M}_H} $ must carry an isometric action of the modular group SL(2, $ \mathbb{Z} $ ), inherited from the S-duality symmetry of type IIB string theory ...
Alexandrov, Sergey, Pioline, Boris
core   +5 more sources

Twisting twistor space

Journal of High Energy Physics
We construct twisted noncommutative gauge theories on twistor space and show that they are equivalent to four-dimensional twist-noncommutative gauge theories. In particular, we study twists of the Poincaré algebra.
Tim Meier, Eggon Viana
doaj   +3 more sources

MHV diagrams in twistor space and the twistor action

, 2011
MHV diagrams give an efficient Feynman diagram-like formalism for calculating gauge theory scattering amplitudes on momentum space. Although they arise as the Feynman diagrams from an action on twistor space in an axial gauge, the main ingredients were previously expressed only in momentum space and momentum twistor space.
Adamo, T, Mason, L
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Inversions in twistor space

, 1983
Inversions in twistor space are studied.
van den Broek, P.M., P.M. van den Broek
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Hyperkähler geometry of rational curves in twistor spaces [PDF]

Complex Manifolds, 2022
We investigate the pseudo-hyperkähler geometry of higher degree rational curves in the twistor space of a hyperkähler 4-manifold.
Bielawski Roger, Zhang Naizhen
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Carrollian $\mathscr Lw_{1+\infty}$ representation from twistor space

SciPost Physics
We construct an explicit realization of the action of the $\mathscr Lw_{1+∞}$ loop algebra on fields at null infinity. This action is directly derived by Penrose transform of the geometrical action of $\mathscr Lw_{1+∞}$ symmetries in twistor space ...
Laura Donnay, Laurent Freidel, Yannick Herfray
doaj   +2 more sources

Gluing Non-commutative Twistor Spaces [PDF]

The Quarterly Journal of Mathematics, 2021
AbstractWe describe a general procedure, based on Gerstenhaber–Schack complexes, for extending to quantized twistor spaces the Donaldson–Friedman gluing of twistor spaces via deformation theory of singular spaces. We consider in particular various possible quantizations of twistor spaces that leave the underlying spacetime manifold classical, including
Marcolli, Matilde, Penrose, Roger
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