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ON THE MAXIMUM OF TWO UNILATERALLY CONTINUOUS REGULATED FUNCTIONS

机译:关于两个单调连续调节函数的最大值

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摘要

We prove that if f is the maximum of two unilaterally continuous regulated functions, then the set D_(un)(f) = {x : f is not unilaterally continuous at x} is unilaterally isolated and for x ∈ D_(un)(f) the inequality f(x) < max (f(x+), f(x-)) holds. Moreover, for a regulated function f such that D_(un)(f) is isolated and for x ∈D_(un)(f) the inequality f(x) < max(f(x+), f(x-)) holds, there are two unilaterally continuous regulated functions g, h with f = max(g, h).
机译:我们证明如果f是两个单边连续调节函数的最大值,则D_(un)(f)= {x:f在x上不是单边连续的}是单边隔离的,并且对于x∈D_(un)(f )不等式f(x)

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