Results 1 to 10 of about 202,120 (260)

Integration of SimWeight and Markov Chain to Predict Land Use of Lavasanat Basin [PDF]

open access: yesNumerical Methods in Civil Engineering, 2018
Production and prediction of land-use/land cover changes (LULCC) map are among the significant issues regarding input of many environmental and hydrological models.
M S. Mirakhorlo, M. Rahimzadegan
doaj   +1 more source

Common fixed point theorems for compatible self-maps of Hausdorff topological spaces

open access: yesFixed Point Theory and Applications, 2005
The concept of proper orbits of a map g is introduced and results of the following type are obtained. If a continuous self-map g of a Hausdorff topological space X has relatively compact proper orbits, then g has a fixed point.
Gerald F. Jungck
doaj   +2 more sources

Roots of mappings from manifolds

open access: yesFixed Point Theory and Applications, 2004
Assume that f:X→Y is a proper map of a connected n-manifold X into a Hausdorff, connected, locally path-connected, and semilocally simply connected space Y, and y0∈Y has a neighborhood homeomorphic to Euclidean n-space.
Robin Brooks
doaj   +2 more sources

On higher-order adjacent derivative of perturbation map in parametric vector optimization

open access: yesJournal of Inequalities and Applications, 2016
This paper deals with higher-order sensitivity analysis in terms of the higher-order adjacent derivative for nonsmooth vector optimization. The relations between the higher-order adjacent derivative of the minima/the proper minima/the weak minima of a ...
Le Thanh Tung
doaj   +1 more source

On properness of minimal surfaces with bounded curvature

open access: yesAnais da Academia Brasileira de Ciências, 2003
We show that immersed minimal surfaces in the euclidean 3-space with bounded curvature and proper self intersections are proper. We also showthat restricted to wide components the immersing map is always proper, regardless the map being proper or not ...
Gregório P. Bessa   +1 more
doaj   +1 more source

The star compactification

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
The relationships between a convergence space and its star compactification is studied. Special attention is given to lifting properties of this compactification.
G. D. Richardson, D. C. Kent
doaj   +1 more source

Crisis Map Design Considering Map Cognition

open access: yesISPRS International Journal of Geo-Information, 2021
Crisis maps play a significant role in emergency responses. Users are challenged to interpret a map rapidly in emergencies, with limited visual information-processing resources and under time pressure.
Ping Du   +5 more
doaj   +1 more source

Classification Theorems of Ruled Surfaces in Minkowski Three-Space

open access: yesMathematics, 2018
By generalizing the notion of the pointwise 1-type Gauss map, the generalized 1-type Gauss map has been recently introduced. Without any assumption, we classified all possible ruled surfaces with the generalized 1-type Gauss map in a 3-dimensional ...
Miekyung Choi, Young Ho Kim
doaj   +1 more source

Surfaces of infinite-type are non-Hopfian

open access: yesComptes Rendus. Mathématique, 2023
We show that finite-type surfaces are characterized by a topological analogue of the Hopf property. Namely, an oriented surface $\Sigma $ is of finite-type if and only if every proper map $f\colon \,\Sigma \rightarrow \Sigma $ of degree one is homotopic ...
Das, Sumanta, Gadgil, Siddhartha
doaj   +1 more source

A pointfree version of remainder preservation [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2013
Recall that a continuous function $fcolon Xto Y$ between Tychonoff spaces is proper if and only if the Stone extension $f^{beta}colon beta Xtobeta Y$ takes remainder to remainder, in the sense that $f^{beta}[beta X-X]subseteq beta Y-Y$.
Themba Dube, Inderasan Naidoo
doaj  

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