Continuous functions of bounded nth variation
1969 ◽
Vol 16
(3)
◽
pp. 205-214
Keyword(s):
The Real
◽
Let n be a positive integer. We give an elementary construction for the nth variation, Vn(f), of a real valued continuous function f and prove an analogue of the classical Jordan decomposition theorem. In fact, let C[0, 1] denote the real valued continuous functions on the closed unit interval, let An denote the semi-algebra of non-negative functions in C[0, 1] whose first n differences are non-negative, and let Sn denote the difference algebra An - An. We show that Sn is precisely that subset of C[0, 1] on which Vn(f)<∞. (Theorem 1).
1976 ◽
Vol 15
(3)
◽
pp. 371-379
◽
1991 ◽
Vol 11
(2)
◽
pp. 249-271
◽
Keyword(s):
2021 ◽
Vol 7
(1)
◽
pp. 88-99