Results 41 to 50 of about 133 (128)

Toeplitz Algebras on Strongly Pseudoconvex Domains [PDF]

open access: yesNagoya Mathematical Journal, 2007
AbstractIn the present paper, it is proved that theK0-group of a Toeplitz algebra on any strongly pseudoconvex domain is always isomorphic to theK0-group of the relative continuous function algebra, and is thus isomorphic to the topologicalK0-group of the boundary of the relative domain.
openaire   +2 more sources

New estimates of Rychkov's universal extension operator for Lipschitz domains and some applications

open access: yesMathematische Nachrichten, Volume 297, Issue 4, Page 1407-1443, April 2024.
Abstract Given a bounded Lipschitz domain Ω⊂Rn$\Omega \subset \mathbb {R}^n$, Rychkov showed that there is a linear extension operator E$\mathcal {E}$ for Ω$\Omega$, which is bounded in Besov and Triebel‐Lizorkin spaces. In this paper, we introduce some new estimates for the extension operator E$\mathcal {E}$ and give some applications.
Ziming Shi, Liding Yao
wiley   +1 more source

Finite-Time Consensus Neurodynamic Optimization for Distributed Pseudoconvex Problems with Engineering Applications to Economic Dispatch

open access: yesAlgorithms
This paper proposes an adaptive single-layer distributed neurodynamic optimization approach with the penalty method to address a non-smooth pseudoconvex optimization problem with affine equality and inequality constraints in multi-agent systems, where ...
Mantong Huang, Xin Yu, Rixin Lin
doaj   +1 more source

Closed 3‐forms in five dimensions and embedding problems

open access: yesJournal of the London Mathematical Society, Volume 109, Issue 4, April 2024.
Abstract We consider the question if a five‐dimensional manifold can be embedded into a Calabi–Yau manifold of complex dimension 3 such that the real part of the holomorphic volume form induces a given closed 3‐form on the 5‐manifold. We define an open set of 3‐forms in dimension five which we call strongly pseudoconvex, and show that for closed ...
Simon Donaldson, Fabian Lehmann
wiley   +1 more source

The Intrinsic Geometry on Bounded Pseudoconvex Domains [PDF]

open access: yesThe Journal of Geometric Analysis, 2017
The Diederich--Fornæss index has been introduced since 1977 to classify bounded pseudoconvex domains. In this article, we derive several intrinsic, geometric conditions on boundary of domains for arbitrary indexes. Many results, in the past, by various mathematicians estimated the index by assuming some properties of domains.
openaire   +2 more sources

On the Corona Problem for Strongly Pseudoconvex Domains

open access: yesAnalysis Mathematica, 2022
In this note we solve that the corona problem for strongly pseudoconvex domains under a certain assumption on the level sets of the corona data.
openaire   +3 more sources

Optimizing Artificial Neural Network Learning Using Improved Reinforcement Learning in Artificial Bee Colony Algorithm

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2024, Issue 1, 2024.
Artificial neural networks (ANNs) are widely used machine learning techniques with applications in various fields. Heuristic search optimization methods are typically used to minimize the loss function in ANNs. However, these methods can lead the network to become stuck in local optima, limiting performance.
Taninnuch Lamjiak   +5 more
wiley   +1 more source

Exact restrictions of analytic function spaces of several variables

open access: yesСовременная математика: Фундаментальные направления
In this expository paper, we collect many recent advances in analytic function spaces of several complex variables related with the trace problem in tubular domains over symmetric cones and bounded strongly pseudoconvex domains with smooth boundary.
R. F. Shamoyan, N. M. Makhina
doaj   +1 more source

Embedding Strictly Pseudoconvex Domains Into Balls [PDF]

open access: yesTransactions of the American Mathematical Society, 1986
Every relatively compact strictly pseudoconvex domain D D with
openaire   +2 more sources

The Investigation of Some Essential Concepts of Extended Fuzzy‐Valued Convex Functions and Their Applications

open access: yesAdvances in Fuzzy Systems, Volume 2024, Issue 1, 2024.
In this paper, we are thus motivated to define and introduce the extended fuzzy‐valued convex functions that can take the singleton fuzzy values −∞˜ and +∞˜ at some points. Such functions can be characterized using the notions of effective domain and epigraph.
T. Allahviranloo   +7 more
wiley   +1 more source

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