Results 31 to 40 of about 784,941 (297)

Vietoris hyperspaces over scattered Priestley spaces

open access: yesIsrael Journal of Mathematics, 2022
We study Vietoris hyperspaces of closed and closed final sets of Priestley spaces. We are particularly interested in Skula topologies. A topological space is \emph{Skula} if its topology is generated by differences of open sets of another topology. A compact Skula space is scattered and moreover has a natural well-founded ordering compatible with the ...
Banakh, T.   +2 more
openaire   +4 more sources

Orbital Evolution of Scattered Planets [PDF]

open access: yes, 2001
A simple dynamical model is employed to study the possible orbital evolution of scattered planets and phase plane analysis is used to classify the parameter space and solutions.
Jiang, Ing-Guey, Yeh, Li-Chin
core   +2 more sources

Scattered $P$-spaces of weight $\omega_1$

open access: yesTopology and its Applications, 2022
We examine dimensional types of scattered $P$-spaces of weight $\omega_1$. Such spaces can be embedded into $\omega_2$. There are established similarities between dimensional types of scattered separable metric spaces and dimensional types of $P$-spaces of weight $\omega_1$ with Cantor--Bendixson rank less than $\omega_1$.
Bielas, Wojciech   +2 more
openaire   +3 more sources

Advanced detection for faults in front of coal mine roadways using seismic scattered waves

open access: yesFrontiers in Earth Science, 2023
An unsuspected fault in front of a roadway is a key hidden disaster-causing factor that can result in major accidents in coal mines; therefore, the accurate advanced detection of faults is important for the safe coal mining.
Jun Zhang   +4 more
doaj   +1 more source

Calculation of internal and scattered fields of axisymmetric nanoparticles at any point in space [PDF]

open access: yes, 2009
We present a method of simultaneously calculating both the internal and external fields of arbitrarily shaped dielectric and metallic axisymmetric nanoparticles.
Holms, K., Hourahine, B., Papoff, F.
core   +1 more source

On δ-Scattered Space

open access: yesEarthline Journal of Mathematical Sciences, 2022
The object of the present paper is to introduce the concept of δ-scattered spaces as a natural generalization of the concept of scattered spaces. We prove that the concept of δ-scatteredness of the space coincides with scatteredness. It is noted that scattered need not be δ-scattered in general, also I-space are comparable with δ-scattered space.
openaire   +1 more source

Diffraction by a Semi-Infinite Parallel-Plate Waveguide with Five-Layer Material Loading: The Case of H-Polarization

open access: yesApplied Sciences, 2023
In this paper, the plane wave diffraction from a semi-infinite parallel-plate waveguide with five-layer material loading is rigorously analyzed for H-polarization using the Wiener–Hopf technique. The Fourier transform of the scattered field is introduced
Kewen He, Kazuya Kobayashi
doaj   +1 more source

The Complex Stone-Weierstrass Property

open access: yes, 2003
C(X) denotes the space of continuous complex-valued functions on the compact Hausdorff space X. X has the CSWP if every subalgebra of C(X) which separates points and contains the constant functions is dense in C(X). W.
Kunen, Kenneth
core   +2 more sources

HST and Spitzer Observations of the HD 207129 Debris Ring [PDF]

open access: yes, 2010
A debris ring around the star HD 207129 (G0V; d = 16.0 pc) has been imaged in scattered visible light with the ACS coronagraph on the Hubble Space Telescope and in thermal emission using MIPS on the Spitzer Space Telescope at 70 microns (resolved) and ...
András Gáspár   +41 more
core   +3 more sources

Scattered compactifications and the orderability of scattered spaces. II [PDF]

open access: yesProceedings of the American Mathematical Society, 1981
A space is suborderable if it is embeddable in a (totally) orderable space. It is shown that a suborderable scattered space is orderable and admits an orderable scattered compactification.
openaire   +3 more sources

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