Modulus of convexity;
characteristic of convexity;
general direct sum of Banach spaces;
general discrete interpolation method;
D O I:
10.1142/S1793525321500187
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
An estimate for the modulus of convexity and characteristic of convexity of a general direct sum of Banach spaces is established. Using direct sums, we construct a space with given characteristic of convexity and the value of the modulus of convexity at 2. A result on uniform convexity of spaces obtained with the general discrete interpolation method is proved.