Results 51 to 60 of about 35,702 (155)

Event-sampled adaptive neural network automatic berthing control of underactuated vessels under malicious cyber attacks

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveThis study addresses the adaptive automatic berthing control problem for underactuated vessels, considering both internal/external uncertainties and false data injection (FDI) attacks.
Chun LI, Guibing ZHU, Qiang ZHANG
doaj   +1 more source

On the space of linear homeomorphisms of a polyhedral N-cell

open access: yesTopology and its Applications, 1986
Let (D,T) be a closed n-cell with a triangulation T such that the triangulated cell is linearly embedded in the Euclidean space \(E^ n\). A linear homeomorphism of (D,T) is a homeomorphism \(f: D\to D\) such that f is pointwise fixed on Bd(D) and is linear on each simplex of T.
openaire   +2 more sources

ON LINEAR HOMEOMORPHISMS OF SPACES OF CONTINUOUS FUNCTIONS ON «LONG LINES» [PDF]

open access: yesVestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, 2016
Summary: In this paper, we prove that for the elementary regular ordinal and arbitrary ordinals \(\alpha, \beta ...
openaire   +2 more sources

On certain homotopy properties of some spaces of linear and piecewise linear homeomorphisms. II [PDF]

open access: yesTransactions of the American Mathematical Society, 1973
In his study of the smoothings of p. l. manifolds, R. Thom considered the homotopy groups of a certain space L n {L_n} of p.l. homeomorphisms on an n n -simplex. N. H. Kuiper showed in 1965 that the higher homotopy groups of L n {L_n}
openaire   +3 more sources

Piecewise linear homeomorphisms of a circle and foliations

open access: yesTohoku Mathematical Journal, 1991
The universal covering group \(\widetilde{\hbox{Homeo}}_ +(S^ 1)\) of \(\hbox{Homeo}_ +(S^ 1)\) is the subgroup of \(\hbox{Homeo}_ +(\mathbb{R})\) consisting of all \(\tilde f\) that commute with translation by 1. A theorem of Eisenbud, Hirsch, and Neumann asserts that \(\tilde f\in \widetilde{\hbox{Homeo}}_ +(S^ 1)\) is a product of \(k\) commutators ...
openaire   +2 more sources

Linear homeomorphisms of some classical families of univalent functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
The extreme points of the closed convex hull of some classical families of univalent functions analytic on the open unit disk, e.g. the convex, K, and starlike, St, have recently been characterized. These characterizations are used to determine an explicit representation for the class of linear homeomorphisms of the extreme points of the closed convex ...
openaire   +1 more source

Linear dilatation and differentiability of homeomorphisms of $\mathbb{R}^{n}$ [PDF]

open access: yesProceedings of the American Mathematical Society, 2012
In this article, the author proves the following two results. Suppose that \(d\geq 2\). Let \(h: [0,\infty)\to [0,\infty)\) be a homeomorphism satisfying \[ \frac{h(t)}{t^{d-1}}\to 0\; \text{as \(t\to 0^+\)}. \] Then there exists a homeomorphism \(f: [0,1]^d\to f([0,1]^d)\subset {\mathbb R}^d\) and a set \(S\subset [0,1]^d\) such that \begin{itemize ...
openaire   +1 more source

A Schoenflies extension theorem for a class of locally bi-Lipschitz homeomorphisms

open access: yes, 2009
In this paper we prove a new version of the Schoenflies extension theorem for collared domains in Euclidean n-space: for 1 < p < n, locally bi-Lipschitz homeomorphisms between collared domains with locally p-integrable, second-order weak derivatives ...
Gong, Jasun
core  

Simplexwise linear and piecewise linear near self-homeomorphisms of surfaces [PDF]

open access: yesFundamenta Mathematicae, 1989
Summary: Let \(K\subset {\mathbb{R}}^ 2\) be a triangulated 2-disk; a map f: \(K\to {\mathbb{R}}^ 2\) is called simplexwise linear (SL) if \(f| \sigma\) is an affine linear map for every (closed) simplex \(\sigma\) in K. Let \(L(K)=\{SL\) homeomorphisms \(K\to K\) fixing \(\partial K\) pointwise\(\}\), and let \(\overline{L(K)}\) denote its closure in ...
openaire   +1 more source

Local Criteria for Triangulating General Manifolds. [PDF]

open access: yesDiscrete Comput Geom, 2023
Boissonnat JD   +3 more
europepmc   +1 more source

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