John E. Harper

Assistant Professor
Department of Mathematics

Department of Mathematics
The Ohio State University, Newark
Newark, OH 43055

Office (Newark): Reese 254
Phone (Newark): 740-755-7854
Office (Columbus): MA 418
Phone (Columbus): 614-292-7670

I am an Assistant Professor in the Department of Mathematics at The Ohio State University, Newark.
In 2012--2013 I was a Visiting Assistant Professor in the Department of Mathematics at Purdue University.
In 2010--2012 I was a Homotopy Theory Postdoctoral Fellow in the Department of Mathematics at the University of Western Ontario in Canada. Postdoctoral sponsor: J.F. Jardine.
In 2008--2010 I was a Postdoctoral Fellow in the Institut de Géométrie, Algèbre et Topologie at EPFL in Switzerland. Postdoctoral sponsor: K. Hess.
In 2003--2008 I completed my Ph.D. in Mathematics at the University of Notre Dame. Thesis advisor: W.G. Dwyer.

Research Publications Projects Visits Education Mentoring Teaching Talks Conferences Service

Short biography

My mathematical career began while I was in graduate school at MIT for a period of 6 years (1996--2002). I had entered MIT to study aeronautics and astronautics, and by the time I left I was working full-time on mathematics and was off to begin a PhD thesis in homotopy theory with W.G. Dwyer at the University of Notre Dame (2003--2008). After 5 years at Notre Dame I completed my doctoral thesis in Spring 2008 and moved to Switzerland to begin a postdoctoral fellowship position at EPFL in Lausanne with K. Hess as postdoc sponsor (2008--2010). Following Switzerland I moved to Canada to begin a postdoctoral fellowship position at the University of Western Ontario in London, Ontario with J.F. Jardine as postdoc sponsor (2010--2012). Following Canada I moved back stateside to begin a visiting assistant professor position at Purdue University (2012--2013), after which I began my current position as assistant professor. I live in Upper Arlington, Ohio, 35 minutes from the Newark campus (where I work with undergraduate students) and 10 minutes from the Columbus campus (where I work with graduate students).

About my research

The areas I am interested in are homotopy theory and algebraic topology, and their interactions with closely related areas in mathematics---algebraic K-theory, algebraic number theory, algebraic geometry, homological algebra, and geometric topology.

Publications and preprints

Extended research visits


Mentoring: Undergraduate and Graduate

Teaching: Undergraduate and Graduate

Here are Student Testimonials on my teaching and courses.

Selected invited talks

Selected informal talks

Conference participation

Service to the profession

Seminars organized

Honors, prizes, and memberships

Languages (reading)


Useful links