• Title/Summary/Keyword: constant relative breadth

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INEQUALITIES FOR THE AREA OF CONSTANT RELATIVE BREADTH CURVES

  • Kim, Yong-Il;Chai, Y.D.
    • Bulletin of the Korean Mathematical Society
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    • v.36 no.1
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    • pp.15-23
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    • 1999
  • We obtain an efficient upper bound of the area of convex curves of constant relative breadth in the Minkowski plane. The estimation is given in terms of the Minkowski are length of pedal curve of original curve.

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VOLUME PRODUCT FOR PEDAL BODIES

  • Chai, Y.D.;Kim, Yong-Il;Lee, Doo-Hann
    • Bulletin of the Korean Mathematical Society
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    • v.38 no.4
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    • pp.735-740
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    • 2001
  • Let K be a convex body of constant relative breadth and let $K^*$ be its polar dual with respect to the Euclidean unit circle. In this paper we obtain the lower bound for the volume of the pedal body $PK^*P $K^{*}$ of K^*.$ Using this, we also obtain the lower bound for the volume product V$(PK^*)$V(PK) for planar bodies.s.

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