Sandy Ganzell

Mathematics and Computer Science, St. Mary's College of Maryland
47645 College Drive, St. Mary's City, MD 20686

Welcome! My office is in Schaefer Hall, room 172. Come by any time. If the door's open, you're not interrupting. You can also schedule an appointment.
Contact me at 240-895-4371 or

Fall 2023

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My student visiting hours (office hours) are M/W 3–4. If you're busy then, email me to schedule a time to meet. Or just stop by. This semester I'm teaching Survey of Math, FOM and Combinatorics. Click below for course info.

Math/CS Department

Here's some of what's happening in the department.

You can take an exam to get your infinity license! There's a 123 lecture at, well, 12:03. We host an NSF-funded REU! Other things!


My main area of research is Geometric Topology, specifically 4-Manifolds and Knot Theory. I'm also interested in Geometric Group Theory and Combinatorial Games.

My classes

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Fall 2023: I'm teaching MATH131: Survey of Mathematics (MWF 8:30–9:20), MATH281: Foundations of Mathematics (MWF 2:10–3:00) and MATH421: Combinatorics (MWF 10:30–11:20). Syllabi and additional info are available on Blackboard and (if applicable) your course Google drive. Contact me if you need access.

Student Visiting Hours (in person!): Monday/Wednesday 3:00–4:00. If you're not free during my open hours, you can email me to schedule an appointment.

Spring 2024: I'll be teaching MATH200: Discrete Math, and MATH451: Complex Analysis. Syllabi and additional info will be available on Blackboard in January.

My past courses (taught at SMCM, University of The Gambia, Pomona College and Rice University) are listed in my CV.

My Research

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My primary interest in mathematics is in Geometric Topology. More specifically, my research focusses on Knot Theory and the Topology of 4-Manifolds. I'm also interested in Geometric Group Theory and Combinatorial Game Theory.

Students interested in doing research (or SMPs) in any of these areas should read (or at least skim) the linked Wikipedia pages and come see me. A course in Topology is helpful (but not essential) for studying Knot Theory. Abstract Algebra I is essential for studying Geometric Group Theory; both Topology and Abstract Algebra II are essential for studying 4-manifolds.

Things happening around the department

Contact Me

Mailing Address

Department of Mathematics and Computer Science
St. Mary's College of Maryland
18952 East Fisher Road
St. Mary's City, MD 20686


240-895-4371 (my office)
240-895-4362 (office associate)
240-895-4996 (fax)

Email Address

Web Address

Office Location

Schaefer Hall room 172

Campus Map (printable)