New affine inequalities and projection mean ellipsoids
A variational formula for the Lutwak affine surface areas Λ j of convex bodies in R n is established when 1 ≤ j ≤ n - 1 . By using introduced new ellipsoids associated with projection functions of convex bodies, we prove a sharp isoperimetric inequality for Λ j , which opens up a new passage to atta...
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Veröffentlicht in: | Calculus of variations and partial differential equations 2019-04, Vol.58 (2), p.1-18, Article 44 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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Zusammenfassung: | A variational formula for the Lutwak affine surface areas
Λ
j
of convex bodies in
R
n
is established when
1
≤
j
≤
n
-
1
.
By using introduced new ellipsoids associated with projection functions of convex bodies, we prove a sharp isoperimetric inequality for
Λ
j
, which opens up a new passage to attack the longstanding Lutwak conjecture in convex geometry. |
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ISSN: | 0944-2669 1432-0835 |
DOI: | 10.1007/s00526-019-1497-0 |