نتایج جستجو برای: index map

تعداد نتایج: 582621  

Journal: :Rocky Mountain Journal of Mathematics 2007

بـاعقیده‌, محمد , ضیائیان, پرویز ,

In order to define a surrogate index instead of climatic indices for analyzing and monitoring droughts, monthly rainfall data ( period of growth from March to September) of 36 stations spread over Esfahan and NOAA satellite images during the 1997- 2003 period were prepared and processed. The climatic index of SPI was computed from monthly rainfall and the Normalized Difference Vegetation Inde...

2007
Martin Väth M. Väth

We prove that there is a coincidence index for the inclusion F (x) ∈ Φ(x) when Φ is convex-valued and satisfies certain compactness assumptions on countable sets. For F we assume only that it provides a coincidence index for single-valued finite-dimensional maps (e.g. F is a Vietoris map). For the special case F = id, the obtained fixed point index is defined if Φ is countably condensing; the a...

2011
Hemanth Korrapati Youcef Mezouar Philippe Martinet

Topological maps are vital for fast and accurate localization in large environments. Sparse topological maps can be constructed by partitioning a sequence of images acquired by a robot, according to their appearance. All images in a partition have similar appearance and are represented by a node in a topological map. In this paper, we present a topological mapping framework which makes use of i...

One of the goals of geomorphologists in working with the models of different landforms is to obtain better relations in realizing the physical realities of environment. In this study, to evaluate the performance of geomorphometric parameters to increase accuracy of zoning landslide susceptibility map has been studied. As the first step by the application of nine initial conditioning factors inc...

1992
Marian Mrozek

We present a scheme for constructing various Conley indices for locally deened maps. In particular we extend the shape index of Robbin and Salamon to the case of a locally deened map in a locally compact Hausdorr space. We compare the shape index with the cohomological Conley index for maps. We also prove the commutativity property of the Conley index, which is analogous to the commutativity pr...

1999
Peter Saveliev PETER SAVELIEV

For a given pair of maps f, g : X → M from an arbitrary topological space to an n-manifold, the Lefschetz homomorphism is a certain graded homomorphism Λfg : H(X) → H(M) of degree (−n). We prove a Lefschetztype coincidence theorem: if the Lefschetz homomorphism is nontrivial then there is an x ∈ X such that f(x) = g(x).

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