CAT has been known to give tricky problems on Sequences and Series. The topic also is very pliable and produces direct as well as indirect problems that can throw the best of the students off the ...

Erdös has conjectured that given a decreasing sequence of real numbers convergent to 0 there always exists a measurable set of positive measure that contains no similar copy of the sequence. We prove ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...