scholarly journals DIFFERENTIABILITY OF QUASI-HOMOGENEOUS CONVEX AFFINE DOMAINS

2005 ◽  
Vol 42 (3) ◽  
pp. 485-498
Author(s):  
KYEONGHEE JO
Keyword(s):  
1998 ◽  
Vol 81 (1) ◽  
pp. 55-76 ◽  
Author(s):  
Osman Güler ◽  
Levent Tunçel

1984 ◽  
Vol 93 ◽  
pp. 1-17
Author(s):  
Tadashi Tsuji

Let D be a convex domain in the n-dimensional real number space Rn, not containing any affine line and A(D) the group of all affine transformations of Rn leaving D invariant. If the group A(D) acts transitively on D, then the domain D is said to be homogeneous. From a homogeneous convex domain D in Rn, a homogeneous convex cone V = V(D) in Rn+1 = Rn × R is constructed as follows (cf. Vinberg [11]):which is called the cone fitted on the convex domain D.


1966 ◽  
Vol 83 (2) ◽  
pp. 358 ◽  
Author(s):  
O. S. Rothaus

1949 ◽  
Vol 1 (1) ◽  
pp. 73-77 ◽  
Author(s):  
W. Fenchel

Since the classical work of Minkowski and Jensen it is well known that many of the inequalities used in analysis may be considered as consequences of the convexity of certain functions. In several of these inequalities pairs of “conjugate” functions occur, for instance pairs of powers with exponents a and a related by 1/a + 1/a = 1. A more general example is the pair of positively homogeneous convex functions denned by Minkowski and known as the distance (or gauge) function and the function of support of a convex body. The purpose of the present paper is to explain the general (by the way rather elementary) idea underlying this correspondence.


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