2. Let {fn} be a sequence of nonnegative measurable functions and fn (x) → f (x) on a set A of finite measure and gn (x) = min (g (x) , fn (x)), where g is a bounded measurable which vanishes outside a set A. Moreover, g < f. a) Give a rigorous proof (using e and Ne notations) of fact that gn (x) → g (x) for each x E A. b) Does a) allow us to conclude that lim , In = Je 9? If it is not the case. explain why?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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2. Let ffng be a sequence of nonnegative measurable functions and fn(x)!f(x)onasetAof nitemeasure and gn(x)=min(g(x);fn(x)), where g is a bounded measurable which vanishes outside a set A. Moreover, g  f:
2. Let {fn} be a sequence of nonnegative measurable functions and
fn (x) → f (x) on a set A of finite measure and gn (x) = min (g (x), fn (x)),
where g is a bounded measurable which vanishes outside a set A.
Moreover, g < f.
a) Give a rigorous proof (using e and N. notations) of fact
that gn (x) → g (x) for each x E A.
b) Does a) allow us to conclude that lim fp 9In = Se g?
If it is not the case, explain why?
E
Transcribed Image Text:2. Let {fn} be a sequence of nonnegative measurable functions and fn (x) → f (x) on a set A of finite measure and gn (x) = min (g (x), fn (x)), where g is a bounded measurable which vanishes outside a set A. Moreover, g < f. a) Give a rigorous proof (using e and N. notations) of fact that gn (x) → g (x) for each x E A. b) Does a) allow us to conclude that lim fp 9In = Se g? If it is not the case, explain why? E
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