Results 51 to 60 of about 164,410 (186)

A Calabi-Yau-to-curve correspondence for Feynman integrals

Journal of High Energy Physics
It has long been known that the maximal cut of the equal-mass four-loop banana integral is a period of a family of Calabi-Yau threefolds that depends on the kinematic variable z = m 2/p 2.
Hans Jockers, Sören Kotlewski, Pyry Kuusela, Andrew J. McLeod, Sebastian Pögel, Maik Sarve, Xing Wang, Stefan Weinzierl   +7 more
doaj   +1 more source

Singular solutions in soft limits

Journal of High Energy Physics, 2020
A generalization of the scattering equations on X (2, n), the configuration space of n points on ℂℙ1, to higher dimensional projective spaces was recently introduced by Early, Guevara, Mizera, and one of the authors.
Freddy Cachazo, Bruno Umbert, Yong Zhang
doaj   +1 more source

Determination of the number of texture segments using wavelets

Electronic Journal of Differential Equations, 2001
This paper presents a robust method of determining the number of texture segments in an image. We take an $N imes N$ image and decompose it into $n imes n$ blocks.
Joseph P. Havlicek, Peter C. Tay
doaj  

Towards analytic structure of Feynman parameter integrals with rational curves

Journal of High Energy Physics, 2022
We propose a strategy to study the analytic structure of Feynman parameter integrals where singularities of the integrand consist of rational irreducible components.
Jianyu Gong, Ellis Ye Yuan
doaj   +1 more source

Generalized planar Feynman diagrams: collections

Journal of High Energy Physics, 2020
Tree-level Feynman diagrams in a cubic scalar theory can be given a metric such that each edge has a length. The space of metric trees is made out of orthants joined where a tree degenerates.
Francisco Borges, Freddy Cachazo
doaj   +1 more source

Tropical Grassmannians, cluster algebras and scattering amplitudes

Journal of High Energy Physics, 2020
We provide a cluster-algebraic approach to the computation of the recently introduced generalised biadjoint scalar amplitudes related to Grassmannians Gr(k, n). A finite cluster algebra provides a natural triangulation for the tropical Grassmannian whose
James Drummond, Jack Foster, Ömer Gürdoğan, Chrysostomos Kalousios   +3 more
doaj   +1 more source

An algebraic approach to minimal models in CFTs [PDF]

, 2017
CFTs are naturally defined on Riemann surfaces. The rational ones can be solved using methods from algebraic geometry. One particular feature is the covariance of the partition function under the mapping class group.
Leitner, Marianne
core   +1 more source

Multiview Differential Geometry of Curves

, 2016
The field of multiple view geometry has seen tremendous progress in reconstruction and calibration due to methods for extracting reliable point features and key developments in projective geometry.
Fabbri, Ricardo, Kimia, Benjamin
core   +1 more source

C* Algebras and Differential Geometry

, 2004
Translated Comptes Rendus Note of March ...
openaire   +2 more sources

Yano F structures and extended supersymmetry

Journal of High Energy Physics, 2022
It is shown how extended supersymmetry realised directly on the (2, 2) semichiral superfields of a symplectic sigma model gives rise to a geometry on the doubled tangent bundle consisting of two Yano F structures on an almost para-hermitian manifold ...
Ulf Lindström
doaj   +1 more source