Kroschel, Brenda portrait

Kroschel, Brenda

Associate Professor
Degree
Ph.D., College of William and Mary
Office
OSS 218
Phone
(651) 962-5537
Toll Free
(800) 328-6819, Ext. 2-5537
Fax
651-962-5670
Mail
OSS 201

Professional Interests
structured eigenvectors
interlacing
matrix completions
totally nonnegative matrices
zero forcing number
Twin Cities Math Teachers' Circle

I received my PhD in Matrix Theory from the College of William and Mary. Prior to that I worked in industry for a number of years including three years for an options and futures trading firm in the Chicago Board of Trade. My research interests include matrix completion problems, eigenvalue interlacing, structured eigenvectors, totally nonnegative matrices,and zero forcing number.

I am one of the co-organizers of Minnesota's first Math Teachers' Circle called the Twin Cities Math Teachers' Circle (TCMTC). Myself, Melissa Loe and Cheri Shakiban from University of St. Thomas together with Minneapolis middle school teachers Patty DeJarLais and Chris Wernimont started the circle in August 2010. There are currently 18 members of the TCMTC and we meet each month to work on interesting math problems and improve the problem solving skills of the middle school math teachers who are members. We hope to energize these teachers so they bring their enthusiasm and improved problem solving skills back to their classrooms.

Education:

  • Ph.D., Applied Science Program ( Mathematics Track) College of William and Mary, 1996.
  • M.S., Mathematical Sciences, Clemson University, 1987 .
  • B.A., Mathematics and Chemistry, St. Olaf College, 1985.

Publications:

  • Principal Submatrices, Geometric Multiplicities, and Structured Eigenvectors, C.R. Johnson, and B.K. Kroschel, SIAM J. Matrix Anal. Appl, 16-3 (1995) 1004-1012.
  • The Euclidean Distance Completion Problem: Cycle Completability, C.R. Johnson, C.A. Jones, and B.K. Kroschel, Linear and Multilinear Algebra, 39 (1995) 195-207.
  • An Interior-Point Method for Approximate Positive Semidefinite Completions, C.R. Johnson, B.K. Kroschel, and H. Wolkowicz, Computational Optimization and Applications, accepted.
  • Extended Interlacing Intervals, C.R. Johnson, R.O. Hill, and B.K. Kroschel, Linear Algebra and its Applications, accepted.
  • The "Clock Hands" Computer Graphics Program, C.R. Johnson and B.K. Kroschel, College Journal of Mathematics, to appear.
  • The P-matrix Completion Problem, C.R. Johnson and B.K. Kroschel, Electronic Journal of Linear Algebra, vol 1.
  • The Totally Nonnegative Completion Problem, C.R. Johnson, B.K. Kroschel, and M. Lundquist, Fields Institute Communications, to appear.

J-Term 2017 Courses

J-Term 2017 Courses
Course - Section Title Days Time Location

Spring 2017 Courses

Spring 2017 Courses
Course - Section Title Days Time Location
MATH 114 - 03 Calculus II M - W - F - - 1055 - 1200 OSS 227
CRN: 20180 4 Credit Hours Instructor: Brenda K. Kroschel Techniques of integration; applications of integration; infinite series; parametric/polar equations. Offered Fall, Spring and Summer. Prerequisite: a grade of C- or above in MATH 112 or in MATH 113 or MATH 109

Schedule Details

Location Time Day(s)
MATH 114 - 06 Calculus II - T - R - - - 0955 - 1135 OSS 226
CRN: 21537 4 Credit Hours Instructor: Brenda K. Kroschel Techniques of integration; applications of integration; infinite series; parametric/polar equations. Offered Fall, Spring and Summer. Prerequisite: a grade of C- or above in MATH 112 or in MATH 113 or MATH 109

Schedule Details

Location Time Day(s)
MATH 240 - 01 Linear Algebra M - W - F - - 0935 - 1040 OSS 214
CRN: 20550 4 Credit Hours Instructor: Brenda K. Kroschel An introductory course in linear algebra, beginning with linear equations and matrix algebra. Subsequent topics include study of vector spaces, orthogonality, eigenvectors and inner products. The course combines theoretical and applied perspectives, including concepts of rigorous proof. Offered Fall and Spring. Prerequisite: A grade of C- or above in MATH 200, concurrent enrollment allowed.

Schedule Details

Location Time Day(s)

Summer 2017 Courses

Summer 2017 Courses
Course - Section Title Days Time Location