1617-257/HW-5: Difference between revisions
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'''General grading scheme''' |
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Two problems graded out of 15 points each. |
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'''Comments''' |
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'''Z. graded 8-1'''. |
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'''I. graded problem 8-5'''. Many employed the inverse function theorem (IFT) inappropriately here (injectivity is a requirement for the statement of the IFT - otherwise, the conclusion that the function in question is invertible doesn't make sense in the first place). One way to proceed is to show that the function in question is locally injective which then allows one to employ the IFT locally. |
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