Division of Science





Department of Mathematics
The City College of New York
160 Convent Avenue
New York, NY 10031

Phone: (212) 650-5346
Fax: (212) 650-6294

Student seminar

All talks

  • Thursday, November 03, 2016, 01:15PM, NAC 4/148

    Prof. Alice Medvedev (CCNY Math Department), 10-adics and 2-adics: decimals with dot-dot-dot on the wrong side

    What if decimal expansions had to be finite to the right of the decimal point, but were allowed to be infinite on the left? Certainly, we can still express integers; but what fractions can we express? What numbers have square roots? What familiar properties of addition and multiplication do we lose? Is it better to use base 2, that is binary exapansion, like 1011 for eleven? That's all algebra; what is analysis like in this strange world?

  • Thursday, October 27, 2016, 01:00PM, NAC 4/148

    Prof. Ethan Akin (CCNY Math Department), What is Dynamics?

    We describe what is a dynamical system, with examples from Nietzsche, Collatz and Edward Lorenz

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