Let z(u, v) be a point on the plane, R+2=(z:u≥0, v≥0). B+2 represents the Borel field in R+2. X={x(z, ω), z∈R+2} the stochastic process on some probability space (Ω, F, P). We say that X is a two-paramete...
The regularity of the step-by-step variations of the physico-chemical properties relating to the trivalent ions of the lanthanides has long been considered as monotonic gradual variations. By examining the relationshi...