Results 11 to 20 of about 2,265 (192)

A note on Hausdorff convergence of pseudospectra

open access: yesOpuscula Mathematica, 2023
For a bounded linear operator on a Banach space, we study approximation of the spectrum and pseudospectra in the Hausdorff distance. We give sufficient and necessary conditions in terms of pointwise convergence of appropriate spectral quantities.
Lindner, Marko, Schmeckpeper, Dennis
openaire   +4 more sources

The Strong Laws of Large Numbers for Set-Valued Random Variables in Fuzzy Metric Space

open access: yesMathematics, 2021
In this paper, we firstly introduce the definition of the fuzzy metric of sets, and discuss the properties of fuzzy metric induced by the Hausdorff metric.
Li Guan, Juan Wei, Hui Min, Junfei Zhang
doaj   +1 more source

Hausdorff convergence and universal covers [PDF]

open access: yesTransactions of the American Mathematical Society, 2001
17 ...
Sormani, Christina, Wei, Guofang
openaire   +2 more sources

Subobjects and Compactness in Point-Free Convergence

open access: yesJournal of Mathematics, 2023
We consider subobjects in the context of point-free convergence (in the sense of Goubault-Larrecq and Mynard), characterizing extremal monomorphisms in the opposite category of that of convergence lattices.
Emilio Angulo, Frédéric Mynard
doaj   +1 more source

GAN‐LSTM‐3D: An efficient method for lung tumour 3D reconstruction enhanced by attention‐based LSTM

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract Three‐dimensional (3D) image reconstruction of tumours can visualise their structures with precision and high resolution. In this article, GAN‐LSTM‐3D method is proposed for 3D reconstruction of lung cancer tumours from 2D CT images. Our method consists of three phases: lung segmentation, tumour segmentation, and tumour 3D reconstruction. Lung
Lu Hong   +12 more
wiley   +1 more source

Hausdorff Convergence and the Limit Shape of the Unicorns [PDF]

open access: yesExperimental Mathematics, 1997
We discuss the Hausdorff convergence of hyperbolic components in parameter space as a one-parameter family of transcendental functions is dynamically approximated by polynomials. This convergence is strongly suggested by computer experiments and is proved in a weaker form, which is illustrated with exponential, sine and cosine families. Furthermore, we
Bernd Krauskopf, Hartje Kriete
openaire   +3 more sources

Essential circles and Gromov–Hausdorff convergence of covers [PDF]

open access: yesJournal of Topology and Analysis, 2016
The [Formula: see text]-covers of Sormani–Wei ([20]) are known not to be “closed” with respect to Gromov–Hausdorff convergence. In this paper we use the essential circles introduced in [19] to define a larger class of covering maps of compact geodesic spaces called “circle covers” that are “closed” with respect to Gromov–Hausdorff convergence and ...
Plaut, Conrad, Wilkins, Jay
openaire   +3 more sources

Compactness in Groups of Group-Valued Mappings

open access: yesMathematics, 2022
We introduce the concepts of extended equimeasurability and extended uniform quasiboundedness in groups of group-valued mappings endowed with a topology that generalizes the topology of convergence in measure.
Diana Caponetti   +2 more
doaj   +1 more source

Gromov--Hausdorff Convergence of Discrete Transportation Metrics [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2013
22 pages, to appear in SIAM J.
Gigli, Nicola, Mass, J.
openaire   +2 more sources

A class of sets where convergence in Hausdorff sense and in measure coincide

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2020
We introduce a class of uniformly bounded closed sets such that, inside the class, convergence in Hausdorff sense and in measure do agree. We also show that the class is rich enough for applications to potential theory.
Roberto Lucchetti, Fernando Sansò
doaj   +1 more source

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