Results 101 to 110 of about 1,114,315 (242)

A community‐driven vision for a new knowledge resource for AI

open access: yesAI Magazine, Volume 46, Issue 4, Winter 2025.
Abstract The long‐standing goal of creating a comprehensive, multi‐purpose knowledge resource, reminiscent of the 1984 Cyc project, still persists in AI. Despite the success of knowledge resources like WordNet, ConceptNet, Wolfram|Alpha and other commercial knowledge graphs, verifiable, general‐purpose, widely available sources of knowledge remain a ...
Vinay K Chaudhri   +31 more
wiley   +1 more source

Numerical Feynman integrals with physically inspired interpolation: Faster convergence and significant reduction of computational cost

open access: yesAIP Advances, 2012
One of the most successful methods for calculating reduced density operator dynamics in open quantum systems, that can give numerically exact results, uses Feynman integrals. However, when simulating the dynamics for a given amount of time, the number of
Nikesh S. Dattani
doaj   +1 more source

The R *-operation for Feynman graphs with generic numerators

open access: yesJournal of High Energy Physics, 2017
The R *-operation by Chetyrkin, Tkachov, and Smirnov is a generalisation of the BPHZ R-operation, which subtracts both ultraviolet and infrared divergences of euclidean Feynman graphs with non-exceptional external momenta.
Franz Herzog, Ben Ruijl
doaj   +1 more source

One Dimensional Metal Oxide Semiconductor Nanotransistors

open access: yesAdvanced Materials Technologies, Volume 10, Issue 21, November 6, 2025.
This review assesses one dimensional metal oxide NW‐FETs as promising alternatives to conventional transistors. It explores how advances in architecture, material composition, and fabrication processes expand device capabilities. Emphasis is placed on novel gate configurations, different metal oxide nanowires, and post‐treatment methods, which ...
Mariana D. Cortinhal   +2 more
wiley   +1 more source

Renormalization and running in the 2D CP (1) model

open access: yesJournal of High Energy Physics
We calculate the scattering amplitude in the two dimensional CP (1) model in a regularization scheme independent way. When using cutoff regularization, a new Feynman rule from the path integral measure is required if one is to preserve the symmetry.
Diego Buccio   +3 more
doaj   +1 more source

Systematic approximation of multi-scale Feynman integrals [PDF]

open access: diamond, 2018
Sophia Borowka   +5 more
openalex   +1 more source

A Variational Formulation of European Option Prices in the 1‐Hypergeometric Stochastic Volatility Model

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 17, Page 16110-16121, 30 November 2025.
ABSTRACT The paper proposes a variational analysis of the 1‐hypergeometric stochastic volatility model for pricing European options. The methodology involves the derivation of estimates of the weak solution in a weighted Sobolev space. The weight is closely related to the stochastic volatility dynamic of the model.
José Da Fonseca, Wenjun Zhang
wiley   +1 more source

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