problems 14

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Problem Solving Set 14 17 July 2012 1. Denote by V the real vector space of all real polynomials in one variable, and let P : V R be a linear map. Suppose that for all f,g V with P (fg ) = 0 we have P (f ) = 0 or P (g ) = 0. Prove that there exist real numbers x 0 ,c such that P (f )= cf (x 0 ) for all f V . 2. The smallest number with four factors is 6 : 1, 2, 3, 6. The smallest number with six factors is 12 : 1, 2, 3, 4, 6, 12. What is the smallest number with 100 factors?

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  • Problem SolvingSet 14

    17 July 2012

    1. Denote by V the real vector space of all real polynomials inone variable, and let P : V R be a linear map. Supposethat for all f, g V with P (fg) = 0 we have P (f) = 0 orP (g) = 0. Prove that there exist real numbers x0, c suchthat P (f) = cf(x0) for all f V .

    2. The smallest number with four factors is 6 : 1, 2, 3, 6. Thesmallest number with six factors is 12 : 1, 2, 3, 4, 6, 12. Whatis the smallest number with 100 factors?