Notice on POW 2022-10

POW 2022-10 is still open. Anyone who first submits a correct solution will get the full credit.

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Notice on POW 2022-02

POW 2022-02 is still open. Anyone who first submits a correct solution will get the full credit.

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Notice: Change on the due

This semester, the rule is changed so that the solutions are due next Friday at 3PM, i.e., exactly a week after the post of the problem.

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Notice on POW 2021-19

POW 2021-19 is still open. Anyone who first submits a correct solution will get the full credit.

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Notice on POW 2021-17, 2021-18

POW 2021-17 and 2021-18 are still open. For each problem, anyone who first submits a correct solution will get the full credit.

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Notice on 2021-16

POW 2021-16 remains open, as we found gaps in the submitted solutions. Anyone who first submits a correct solution will get the full credit.

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Notice on POW 2021-14

POW 2021-14 is still open and anyone who first submits a correct solution will get the full credit.

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Notice on 2021-14

Please check that POW 2021-14 is slightly changed; there is an additional assumption that $$X \times Y$$ is Hausdorff.

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Notice on POW 2021-08

POW 2021-08 is still open and anyone who first submits a correct solution will get the full credit.

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