917,759 research outputs found
Fiber Strong Shape Theory for Topological Spaces
In the paper we construct and develop a fiber strong shape theory for
arbitrary spaces over fixed metrizable space \Bo. Our approach is based on
the method of Marde\v{s}i\'{c}-Lisica and instead of resolutions, introduced by
Marde\v{s}i\'{c}, their fiber preserving analogues are used. The fiber strong
shape theory yields the classification of spaces over \Bo which is coarser
than the classification of spaces over \Bo induced by fiber homotopy theory,
but is finer than the classification of spaces over \Bo given by usual fiber
shape theory
Visualising the structure of architectural open spaces based on shape analysis
This paper proposes the application of some well known two-dimensional
geometrical shape descriptors for the visualisation of the structure of
architectural open spaces. The paper demonstrates the use of visibility
measures such as distance to obstacles and amount of visible space to calculate
shape descriptors such as convexity and skeleton of the open space. The aim of
the paper is to indicate a simple, objective and quantifiable approach to
understand the structure of open spaces otherwise impossible due to the complex
construction of built structures.Comment: 10 pages, 9 figure
Shape analysis on Lie groups and homogeneous spaces
In this paper we are concerned with the approach to shape analysis based on
the so called Square Root Velocity Transform (SRVT). We propose a
generalisation of the SRVT from Euclidean spaces to shape spaces of curves on
Lie groups and on homogeneous manifolds. The main idea behind our approach is
to exploit the geometry of the natural Lie group actions on these spaces.Comment: 8 pages, Contribution to the conference "Geometric Science of
Information '17
On products in the coarse shape categories
The paper is devoted to the study of coarse shape of Cartesian products of
topological spaces. If the Cartesian product of two spaces and admits
an HPol-expansion, which is the Cartesian product of HPol-expansions of these
spaces, then is a product in the coarse shape category. As a
consequence, the Cartesian product of two compact Hausdorff spaces is a product
in the coarse shape category. Finally, we show that the shape groups and the
coarse shape groups commute with products under some conditions.Comment: 11 page
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