Ray, K. C. On sets of positive measure under certain transformations. (English) Zbl 0138.03701 Bull. Math. Soc. Sci. Math. Phys. R.P.R., n. Ser. 7(55), 225-230 (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:differentiation and integration, measure theory × Cite Format Result Cite Review PDF