Results 51 to 60 of about 2,825,153 (362)

Scattering equations: from projective spaces to tropical grassmannians

open access: yesJournal of High Energy Physics, 2019
We introduce a natural generalization of the scattering equations, which connect the space of Mandelstam invariants to that of points on ℂℙ1, to higher-dimensional projective spaces ℂℙ k − 1.
Freddy Cachazo   +3 more
doaj   +1 more source

Cutting the traintracks: Cauchy, Schubert and Calabi-Yau

open access: yesJournal of High Energy Physics, 2023
In this note we revisit the maximal-codimension residues, or leading singularities, of four-dimensional L-loop traintrack integrals with massive legs, both in Feynman parameter space and in momentum (twistor) space.
Qu Cao, Song He, Yichao Tang
doaj   +1 more source

Special geometry on the 101 dimesional moduli space of the quintic threefold

open access: yesJournal of High Energy Physics, 2018
A new method for explicit computation of the CY moduli space metric was proposed by the authors recently. The method makes use of the connection of the moduli space with a certain Frobenius algebra.
Konstantin Aleshkin, Alexander Belavin
doaj   +1 more source

Holonomic representation of biadjoint scalar amplitudes

open access: yesJournal of High Energy Physics, 2023
We study tree-level biadjoint scalar amplitudes in the language of D-modules. We construct left ideals in the Weyl algebra D that allow a holonomic representation of n-point amplitudes in terms of the linear partial differential equations they satisfy ...
Leonardo de la Cruz
doaj   +1 more source

Multidimensional Toda type systems [PDF]

open access: yes, 1996
On the base of Lie algebraic and differential geometry methods, a wide class of multidimensional nonlinear systems is obtained, and the integration scheme for such equations is proposed.Comment: 29 pages, LaTeX ...
A. N. Leznov   +22 more
core   +2 more sources

Generalized planar Feynman diagrams: collections

open access: yesJournal 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

Z$_3$-graded differential geometry of quantum plane [PDF]

open access: yesJ. Phys. A: Math. Gen. 35 (2002), 6307-6318, 2002
In this work, the Z$_3$-graded differential geometry of the quantum plane is constructed. The corresponding quantum Lie algebra and its Hopf algebra structure are obtained. The dual algebra, i.e. universal enveloping algebra of the quantum plane is explicitly constructed and an isomorphism between the quantum Lie algebra and the dual algebra is given.
arxiv   +1 more source

Scaling‐down biopharmaceutical production processes via a single multi‐compartment bioreactor (SMCB)

open access: yesEngineering in Life Sciences, Volume 23, Issue 1, January 2023., 2023
Abstract Biopharmaceutical production processes often use mammalian cells in bioreactors larger than 10,000 L, where gradients of shear stress, substrate, dissolved oxygen and carbon dioxide, and pH are likely to occur. As former tissue cells, producer cell lines such as Chinese hamster ovary (CHO) cells sensitively respond to these mixing ...
Lena Gaugler   +5 more
wiley   +1 more source

Tangent Categories from the Coalgebras of Differential Categories [PDF]

open access: yes, 2019
Following the pattern from linear logic, the coKleisli category of a differential category is a Cartesian differential category. What then is the coEilenberg-Moore category of a differential category? The answer is a tangent category!
Cockett, Robin   +2 more
core   +2 more sources

Intersection theory in differential algebraic geometry: Generic intersections and the differential Chow form [PDF]

open access: yesTransactions of the American Mathematical Society, 2010
In this paper, an intersection theory for generic differential polynomials is presented. The intersection of an irreducible differential variety of dimension d d and order h h with a generic differential hypersurface of order s ...
X. Gao, Wei Li, C. Yuan
semanticscholar   +1 more source

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