1 paper
I. V. Protasov, K. D. Protasova
Given two ordinal λ and γ, let f:[0,λ)→[0,γ) be a function such that, for each α<γ, sup{f(t):t∈[0,α]}<γ. We define a mapping $d_{f}: [0,λ)\times [0,λ)…