Identification and characterization of learning weakness from drawing analysis at the pre-literacy stage. [PDF]
Sci Rep, 2022 Dui LG +6 more
europepmc +1 more source
Deforming convex curves with constant anisotropic length
, 2023 In this paper, we study a curve flow which preserves the anisotropic length of the evolving curve, and show that for any convex closed initial curve, the flow exists for all time and the evolving curve converges to a homothety of the boundary of some ...
Sun, Zezhen
core
Smooth and Discrete Cone-Nets. [PDF]
Results Math, 2023 Kilian M, Müller C, Tervooren J.
europepmc +1 more source
On the Representation of Mappings of Tychonov Spaces as Restrictions of Linear Transformations
, 1976 Let (X, τ) be a Tychonov space and the collection of all families of pseudometrics on X generating the topology τ on X. Let f:X→X and c>0. Then f is said to be a topological c-homothety if there exists some B in such that d(f(x), f(y))=cd(x, y) for ...
Kim-Peu Chew, Kok-Keong Tan
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A General Framework for Neutrality Tests Based on the Site Frequency Spectrum. [PDF]
Genes (Basel), 2023 Ramos-Onsins SE +3 more
europepmc +1 more source
Approximating Convex Shapes With Respect to Symmetric Difference Under Homotheties.
, 2016 The symmetric difference is a robust operator for measuring the error of approximating one shape by another. Given two convex shapes P and C, we study the problem of minimizing the volume of their symmetric difference under all possible scalings and translations of C. We prove that the problem can be solved by convex programming.
Juyoung Yon +4 more
openaire +4 more sources
On a Relation Between Packing and Covering Densities of Convex Bodies. [PDF]
Discrete Comput Geom, 2021 Prosanov R.
europepmc +1 more source
On incircles in triangles and quadrangles
, 1996 This paper discusses basic properties of incircles in triangles and quadrangles. In particular, it will be shown that (1) Let P be a point on the side BC of a triangle ABC and let r, r2, r3, be the inradii of the triangles ABC, ACP, ABP, respectively ...
Denoga, Gerald L., Sianghio, Michael H.
core
Geometric compactification of moduli spaces of half-translation structures on surfaces
, 2016 48 pages, 12 figuresIn this paper, we give an equivariant compactification of the space PFlat(S) of homothety classes of half-translation structures on a compact, connected, orientable surface S.
Morzadec, Thomas
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An experimental test bench for a distributed railway traction mechanical load emulator
, 2012 International audienceThe purpose of this paper is to design an emulator of a railway traction bogie. This bogie consists of two induction motors coupled by common load. This mechanical load is replaced by an emulator using two induction motors.
Maria Pietrzak-David +3 more
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