2) Suppose again that (X, d) be a metric space. For f₁, fn XR a finite family of functions, the functions max ₁ fi, min-1 fi: X → R are defined by n (min fi) (x) min(f₁(x). , fn(x)) and (max fi)(x) = max(f₁(x)….., fn(x)), for x ≤ X. (1) If each fi, i = 1,...,n is Lipschitz, show that both min-₁ f; and max 1 fi are Lipschitz TTD 11 =

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
3
2) Suppose again that (X, d) be a metric space. For f₁, fn X→ Ra finite family of functions,
the functions max 1 fi, min-1 fi: X → R are defined by
n
(min fi)(x) = min(f₁(x)..., fn(x)) and (max fi)(x) = max(ƒ₁(x) ….., fn(x)), for x ≤ X.
(1)
If each fi, i = 1,...,n is Lipschitz, show that both min-₁ f; and max 1 fi are Lipschitz
P
Sm
Transcribed Image Text:2) Suppose again that (X, d) be a metric space. For f₁, fn X→ Ra finite family of functions, the functions max 1 fi, min-1 fi: X → R are defined by n (min fi)(x) = min(f₁(x)..., fn(x)) and (max fi)(x) = max(ƒ₁(x) ….., fn(x)), for x ≤ X. (1) If each fi, i = 1,...,n is Lipschitz, show that both min-₁ f; and max 1 fi are Lipschitz P Sm
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