Results 11 to 20 of about 3,119 (159)
Twistor theory at fifty: from contour integrals to twistor strings. [PDF]
Proc Math Phys Eng Sci, 2017 Atiyah M, Dunajski M, Mason LJ.
europepmc +2 more sources
On the Six-dimensional Kerr Theorem and Twistor Equation [PDF]
, 2014 The Kerr theorem is revisited as part of the twistor program in six dimensions. The relationship between pure spinors and integrable 3-planes is investigated.
da Cunha, Bruno Carneiro
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Algebraic surfaces with infinitely many twistor lines
, 2019 We prove that a reduced and irreducible algebraic surface in $\mathbb{CP}^{3}$ containing infinitely many twistor lines cannot have odd degree. Then, exploiting the theory of quaternionic slice regularity and the normalization map of a surface, we give ...
Altavilla, Amedeo, Ballico, Edoardo
core +1 more source
Loops of loops expansion in the amplituhedron
Journal of High Energy PhysicsWe study a novel geometric expansion for scattering amplitudes in the planar sector of N $$ \mathcal{N} $$ = 4 super Yang-Mills theory, in the context of the Amplituhedron which reproduces the all-loop integrand as a canonical differential form on the ...
Taro V. Brown +3 more
doaj +1 more source
Toric anti-self-dual Einstein metrics via complex geometry
, 2008 Using the twistor correspondence, we give a classification of toric anti-self-dual Einstein metrics: each such metric is essentially determined by an odd holomorphic function.
A.L. Besse +14 more
core +2 more sources
A Projective-to-Conformal Fefferman-Type Construction [PDF]
, 2017 We study a Fefferman-type construction based on the inclusion of Lie groups ${\rm SL}(n+1)$ into ${\rm Spin}(n+1,n+1)$. The construction associates a split-signature $(n,n)$-conformal spin structure to a projective structure of dimension $n$.
Hammerl, Matthias +4 more
core +3 more sources
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Non-Abelian Tensor Multiplet Equations from Twistor Space
, 2014 We establish a Penrose-Ward transform yielding a bijection between holomorphic principal 2-bundles over a twistor space and non-Abelian self-dual tensor fields on six-dimensional flat space-time.
Christian Sämann +10 more
core +1 more source
Twistors and supertwistors for exceptional field theory [PDF]
, 2015 As a means of examining the section condition and its possible solutions and relaxations, we perform twistor transforms related to versions of exceptional field theory with Minkowski signature.
Cederwall, Martin
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Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source