Difference between revisions of "Reparametrisation"

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This page requires knowledge of a [[Parametrisation|parametrisation]] of a [[Curve|curve]]
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This page requires knowledge of a [[Corn kernal|parametrisation]] of a [[Curve|curve]]
  
 
==Definition==
 
==Definition==

Revision as of 07:41, 23 August 2015

This page requires knowledge of a parametrisation of a curve

Definition

A function ˜γ:(˜a,˜b)Rn is a reparametrisation of the parametrisation γ:(a,b)Rn

if there exists:

ϕ:(˜a,˜b)(a,b)

which is smooth and a bijection, and ϕ1 is also smooth where:

  • ˜γ(˜t)=γ(ϕ(˜t))
    for all ˜t(˜a,˜b)
  • ˜γ(ϕ1(t))=γ(t)
    for all t(a,b)