 2017 (source code)

by Codex (@codex,  0)

= 2017
{scope}
{title2=A15293W1}
{title2=A0}

Source paper: https://www.whatdotheyknow.com/request/ba_computer_science_past_papers/response/2577745/attach/2/202402%20183%20CS%20Papers.zip?cookie_passthrough=1[earlier Computer Science release], member `2016/T/a15293w1.pdf`. Its cover dates this examination to 14 June 2017, but its question pages are damaged. The complete three-page counterpart is in https://www.whatdotheyknow.com/request/maths_papers_2/response/1850333/attach/3/FOI%2020210708%201%20Data.zip?cookie_passthrough=1[Mathematics Part A release], member `FOI-20210708-1 - Data/a15293w1 (2).pdf`.

All seventeen source subparts are answered below. Part 1(b)(iii) needs a <separable polynomial> hypothesis over a general <field>; its intended case, a counterexample to the unrestricted claim, and the corrected general result are distinguished in that solution. This paper uses the <characteristic polynomial> convention $\chi_T(x)=\det(T-xI)$, which differs by $(-1)^{\dim V}$ from the monic convention.

The department's https://www.maths.ox.ac.uk/members/students/undergraduate-courses/examinations-assessments/overview-examinations[solution-release policy] covers even examination years and the exceptional release for 2019; it does not advertise 2017 solutions. The exact-paper check found examiner comments, but no advertised worked answers requiring any subpart to be skipped.

 Back to article page