Results 21 to 30 of about 134,735 (211)

On duality of color and kinematics in (A)dS momentum space

open access: yesJournal of High Energy Physics, 2021
We explore color-kinematic duality for tree-level AdS/CFT correlators in momentum space. We start by studying the bi-adjoint scalar in AdS at tree-level as an illustrative example.
Soner Albayrak   +2 more
doaj   +1 more source

Non-Renormalization Theorems in Non-Renormalizable Theories [PDF]

open access: yes, 1998
A perturbative non-renormalization theorem is presented that applies to general supersymmetric theories, including non-renormalizable theories in which the $\int d^2\theta$ integrand is an arbitrary gauge-invariant function $F(\Phi,W)$ of the chiral ...
E. Witten   +9 more
core   +3 more sources

Using Neural Networks for Fast Numerical Integration and Optimization

open access: yesIEEE Access, 2020
We present a novel numerical integration technique, Neural Network Integration, or NNI, where shallow neural network design is used to approximate an integrand function within a bounded set. This function approximation is such that a closed-form solution
Steffan Lloyd   +2 more
doaj   +1 more source

Rearrangement inequalities for functionals with monotone integrands

open access: yesJournal of Functional Analysis, 2006
20 pages.
Burchard, Almut, Hajaiej, Hichem
openaire   +3 more sources

Epi-Convergence of Expectation Functions under Varying Measures and Integrands

open access: yes, 2022
For expectation functions on metric spaces, we provide sufficient conditions for epi-convergence under varying probability measures and integrands, and examine applications in the area of sieve estimators, mollifier smoothing, PDE-constrained optimization, and stochastic optimization with expectation constraints.
Feinberg, Eugene A.   +2 more
openaire   +3 more sources

The Partition Function in the Four-Dimensional Schwarz-type Topological Half-Flat Two-Form Gravity [PDF]

open access: yes, 1996
We derive the partition functions of the Schwarz-type four-dimensional topological half-flat 2-form gravity model on K3-surface or T^4 up to on-shell one-loop corrections.
Abe, Mitsuko
core   +4 more sources

Bilevel Training Schemes in Imaging for Total Variation--Type Functionals with Convex Integrands

open access: yesSIAM Journal on Imaging Sciences, 2022
27 pages, 6 ...
Valerio Pagliari   +3 more
openaire   +3 more sources

Regularity for nonlinear elliptic equations and systems

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2020
We study the regularity of weak solutions to the elliptic system in divergence form divA(x, Du)=0 in an open set Ω of R^n, n≥2. The vector field A(x.ξ), A: Ω×R^(m×n)→R^(m×n), has a variational nature in the sense that A(x,ξ)= Dξ f(x,ξ), where f:Ω×R^(m×n)→
Paolo Marcellini
doaj   +1 more source

Quadrature error functional expansions for the simplex when the integrand function has singularities at vertices [PDF]

open access: yesMathematics of Computation, 1980
In a previous paper by Lyness, an asymptotic expansion for the quadrature error functional for the n-dimensional simplex, valid when the integrand is an analytic function, was given. In this paper we develop the analogue of this result to cover the cases in which the integrand function has singularities of a specified nature at one or more vertices of ...
Lyness, J. N., Monegato, G.
openaire   +2 more sources

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