# Green, Linda

Teaching Associate Professor

Phillips Hall 338

greenl@email.unc.edu

Website

## Research Interests

Math and statistics education, topology of 3-dimensional manifolds, mathematical modeling of disease

## Professional background

B.S. / M. S. University of Chicago, 1990; Ph.D. Princeton University 1996; Postdoctoral position: Mathematical Sciences Research Institute 1996 – 1997

## Research Synopsis

My past research in topology analyzed a class of surfaces, called "incompressible surfaces", in a type of 3-dimensional space that "fibers over the circle". A surface inside a space is called incompressible if any loop in the surface that can be pulled tight in the surrounding space could also be pulled tight without leaving the surface.

A 3-dimensional space fibers over the circle if it can be described as a thickened surface with the inside glued to the outside in some theoretical way, even if that gluing can't be accomplished physically within ordinary space. Incompressible surfaces are useful because slicing a space along incompressible surfaces tends to divide the space into simpler pieces.

My past research in mathematical modeling of diseases used cost-effectiveness analysis to find the best mammogram screening schedule based on age and risk level and the best risk threshold for offering women at high risk of breast cancer prophylactic treatment with tamoxifen. Although I remain interested in 3-dimensional topology and in mathematical modeling of disease, my current professional focus is on math education and best teaching practices.

## Representative Publications

*A Comparison Between Flipped and Lecture-Based instruction in the Calculus Classroom*

Scott C, Green L, Etheridge D,

Journal of Applied Research in Higher Education, 8, 2, 2016

*An Estrogen Model: the Relationship Between Body Mass index, Menopausal Status, Estrogen Replacement therapy, and Breast Cancer Risk*

Green LE, Dinh TA, Smith RA,

Computational and Mathematical Methods in Medicine, 792375, 8, 2012, 2012

*Incompressible Surfaces in Handlebodies*

Green LE,

Topology, 39, 681-710, 2000