Results 21 to 30 of about 4,092,683 (376)

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

String theory and noncommutative geometry [PDF]

open access: yes, 1999
We extend earlier ideas about the appearance of noncommutative geometry in string theory with a nonzero B-field. We identify a limit in which the entire string dynamics is described by a minimally coupled (supersymmetric) gauge theory on a noncommutative
N. Seiberg, E. Witten
semanticscholar   +1 more source

A counterexample to the CFT convexity conjecture

open access: yesJournal of High Energy Physics, 2023
Motivated by the weak gravity conjecture, [Phys. Rev. D 104 (2021) 126005] conjectured that in any CFT, the minimal operator dimension at fixed charge is a convex function of the charge.
Adar Sharon, Masataka Watanabe
doaj   +1 more source

Zariski geometries [PDF]

open access: yesBulletin of the American Mathematical Society, 1993
We characterize the Zariski topologies over an algebraically closed field in terms of general dimension-theoretic properties. Some applications are given to complex manifold and to strongly minimal sets.
Hrushovski, E, Zilber, B
openaire   +6 more sources

Single-Player and Two-Player Buttons & Scissors Games [PDF]

open access: yes, 2016
We study the computational complexity of the Buttons \& Scissors game and obtain sharp thresholds with respect to several parameters. Specifically we show that the game is NP-complete for $C = 2$ colors but polytime solvable for $C = 1$.
Burke, Kyle   +15 more
core   +3 more sources

End-to-End Learning of Geometry and Context for Deep Stereo Regression [PDF]

open access: yesIEEE International Conference on Computer Vision, 2017
We propose a novel deep learning architecture for regressing disparity from a rectified pair of stereo images. We leverage knowledge of the problem’s geometry to form a cost volume using deep feature representations.
Alex Kendall   +3 more
semanticscholar   +1 more source

Delayed deconfinement and the Hawking-Page transition

open access: yesJournal of High Energy Physics, 2022
We revisit the confinement/deconfinement transition in N $$ \mathcal{N} $$ = 4 super Yang-Mills (SYM) theory and its relation to the Hawking-Page transition in gravity.
Christian Copetti   +3 more
doaj   +1 more source

Script geometry [PDF]

open access: yes, 2016
In this paper we describe the foundation of a new kind of discrete geometry and calculus called Script Geometry. It allows to work with more general meshes than classic simplicial complexes.
Cerejeiras, Paula   +3 more
core   +2 more sources

Spinning geometry = Twisted geometry [PDF]

open access: yesClassical and Quantum Gravity, 2014
22 pages, 5 figures, published ...
Jonathan Ziprick   +2 more
openaire   +3 more sources

On the relation between mixed Morrey spaces and mixed Morrey double-sequence spaces [PDF]

open access: yesITM Web of Conferences
In this article, we prove that mixed Morrey double-sequence spaces can be realized as a subspace of mixed Morrey spaces. Our proof extends a similar result for discrete Morrey spaces, obtained by Kikianty and Schwanke in 2019.
Gunawan Hendra   +4 more
doaj   +1 more source

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