f is said to be an open mapping iff the image by f of any open set is open. Let TI be the lower limit topology generated by all unions of intervals of the form {[a,b):a,beR,as

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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f is said to be an open mapping iff the image by f of any open set is open. Let TI
be the lower limit topology generated by all unions of intervals of the form
{[a,b):a,beR,asb} and let T be the Euclidean topology on R. Let f be the identity
map from (R.T) to (R,TI), then:
O fis continuous but not open
O fis a homeomorphism
O fis neither open nor continuous
O fis open but not continuous
Transcribed Image Text:f is said to be an open mapping iff the image by f of any open set is open. Let TI be the lower limit topology generated by all unions of intervals of the form {[a,b):a,beR,asb} and let T be the Euclidean topology on R. Let f be the identity map from (R.T) to (R,TI), then: O fis continuous but not open O fis a homeomorphism O fis neither open nor continuous O fis open but not continuous
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