The City College of New YorkCCNY
Department of Mathematics
Division of Science

Contacting the Mathematics Department

Due to the COVID-19 crisis, Mathematics Department operations and instruction are being performed via a mix of remote and in-person means.

The Math Department's main telephone lines, at (212) 650-5346 and 5347, are being answered by in office staff, Monday through Thursday, for the Fall 2023 semester and the foreseeable future. Hours of operation for all days are from 9AM - 5PM.

On Fridays however, the staff will continue to operate remotely. As a result, calls to the department should then be directed to the following telephone number, (347) 961-7667, which will generally be answered 9am-5pm.

Preferably, email your concerns and questions to math@ccny.cuny.edu, which is also being monitored.

Staff members and administrators are either forwarding their telephone lines or monitoring their campus voicemail on a regular basis.

Contacting Advisors and Program Administrators

During January, advising will be handled online.

For questions concerning registration, e.g. possible overtallies, please email the Math Dept at math@ccny.cuny.edu. In addition to indicate your preferred sections(s) for the course you are looking for, please be sure to include your Empl ID and telephone number (for a quicker back and forth about available sections). Your email will be forwarded to an advisor.

For questions about changing a Major or Minor, you should get a response from the Assistant Chair, Prof. Joseph Bak, who advises undergraduate Mathematics majors. Prof Bak usually responds in a day or so.

The Administrators page lists administrators and advisors in the department together with some information about how to contact our administrators. This page can also be reached by clicking “Administation” on the menu at left.

Professor Jorgenson is the Graduate Chair and runs the Mathematics Master's program. It is best to contact him by writing to mathgradchair@ccny.cuny.edu.

Contacting instructors

Information about individual instructors is available on our People page.

New results on the dodecahedron

Picture of a dodecahedron with a closed straight-line path

Unlike the other platonic solids, the dodecahedron has a straight-line path (geodesic) from a vertex to itself. Actually, there are infinitely many, but in joint work of Prof. Hooper with Prof. Athreya (Univ. of Washington) and Prof. Aulicino (Brooklyn College), it was shown there are exactly 31 such paths up to certain “hidden symmetries.” The picture above shows one which can also be animated. This work was described recently in Quanta Magazine.

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