Ph.D. Mathematics, West Virginia University, 2022, Extremal Combinatorics

M.S. Mathematics, West Virignia University, 2007

B.S. Mathematics, Berry College, 2005

B.A. Music Performance, Berry College, 2005

Teaching

F 2022 Elementary Statistical Inference (Online)

Elementary Statistical Inference (2 sections)

Intermediate Statistical Methods

SU 2022 Calculus 2 (Online)

Introduction to Linear Algebra

Understanding Statistics (Online, 3-week intensive)

S 2022 Quantitative Skills Reasoning

College Algebra (3 sections, Co-coordinator)

F 2021 Quantitative Skills Reasoning (2 sections)

College Algebra (3 sections, Co-coordinator)

Calculus 2

SU 2021 College Algebra (1 Online section, Co-Coordinator)

Algebra with Applications

Introduction to Linear Algebra

S 2021 Algebra with Applications (Online)

College Algebra (1 section, Co-coordinator)

Trigonometry (3 sections)

Graduate Professional Tools Seminar (LaTeX, Online)

F 2020 College Algebra (5 sections, Co-coordinator)

SU 2020 Algebra with Applications (2 sections, Online)

Calculus 2 (Online) (2 sections)

S 2020 Quantitative Skills Reasoning (2 sections)

Calculus 2 (2 sections)

Graduate Professional Tools Seminar (LaTeX)

F 2019 Quantitative Skills Reasoning (2 sections)

College Algebra

Trigonometry

Calculus 2

SU 2019 Quantitative Skills Reasoning

Calculus 1

S 2019 Calculus 2 (2 sections)

Calculus 1b with Precalculus (3 sections)

Graduate Professional Tools Seminar (LaTeX)

F 2018 Trigonometry

Calculus 1a with Precalculus (4 sections)

SU 2018 Trigonometry (Maymester)

Trigonometry (Online)

Introduction to Linear Algebra

S 2018 Trigonometry (3 sections, Coordinator/Lead Instructor)

Graduate Professional Tools Seminar (LaTeX)

F 2017 Quantitative Skills Reasoning

Trigonometry (2 sections, Coordinator/Lead Instructor)

Applied Calculus

SU 2017 Trigonometry (Maymester)

Introduction to Linear Algebra

S 2017 Trigonometry (2 sections, Coordinator/Lead Instructor)

Introduction to Linear Algebra

Graduate Professional Tools Seminar (LaTeX)

F 2016 Trigonometry (2 sections, Coordinator/Lead Instructor)

History of Mathematics

SU 2016 Trigonometry (Maymester)

Introduction to Linear Algebra

S 2016 Trigonometry (3 sections, Coordinator/Lead Instructor)

Graduate Professional Tools Seminar (LaTeX)

F 2015 Trigonometry (2 sections, Coordinator/Lead Instructor)

SU 2015 Trigonometry (Maymester)

Introduction to Linear Algebra

S 2015 Trigonometry (3 sections, Coordinator/Lead Instructor)

Graduate Professional Tools Seminar (LaTeX)

F 2014 Trigonometry (2 sections, Coordinator/Lead Instructor)

College Algebra (4 Day)

SU 2014 Trigonometry (Maymester)

Jazan University Visit: LaTeX & Mathematica Instructor

S 2014 Trigonometry (3 sections, Lead Instructor)

F 2013 Trigonometry (3 sections, Lead Instructor)

SU 2013 Intro Concepts of Mathematics

Trigonometry

Jazan University Visit: LaTeX Instructor

WVU National Research Experience for Undergraduates (NREUP)

S 2013 Quantitative Skills Reasoning

Trigonometry (2 sections, Lead Instructor)

Introduction to Mathematical Concepts (Proof Structures)

Graduate Professional Tools Seminar (LaTeX)

F 2012 Trigonometry (2 sections, Lead Instructor)

SU 2012 Trigonometry (2 sections, Lead Instructor)

S 2012 Trigonometry (2 sections, Lead Instructor)

Introduction to Mathematical Concepts (Proof Structures)

Graduate Professional Tools Seminar (Mathematica)

F 2011 Trigonometry (2 sections, Lead Instructor)

Introduction to Mathematical Concepts (Proof Structures)

SU 2011 Trigonometry (1 section, Lead Instructor)

College Algebra (4 Day)

S 2011 Trigonometry (2 sections, Lead Instructor)

Discrete Mathematics II (Combinatorics)

Graduate Professional Tools Seminar (LaTeX)

F 2010 College Algebra (4 Day)

Trigonometry (Lead Instructor)

Calculus 1 (2 sections)

SU 2010 Trigonometry (1 section, Lead Instructor)

S 2010 Trigonometry (2 sections, Lead Instructor)

Calculus 1

F 2009 Trigonometry (2 sections, Lead Instructor)

Calculus 1

SU 2009 Trigonometry (2 sections, Lead Instructor)

S 2009 Trigonometry (3 sections, Lead Instructor)

F 2008 Trigonometry (Lead Instructor)

Calculus 1 (2 sections)

S 2008 Calculus 1

F 2007 Calculus 1 (Engineering)

S 2007 Engineering Calculus (Recitation)

F 2006 College Algebra (5 day)

Education

Publications

Ryan Hansen, Matt Leonard , and Ron Taylor

Unknotting and Colorability of Knots and Links

Georgia Journal of Science (2006) 64(1): 41. (Abstract)

Ryan Hansen and Ron Taylor

Finding Relative Extreme Values of Cubic Functions Using Algebraic Methods

Proceedings: Third Annual Harriet J. Walton Symposium on Undergraduate Mathematics Research, 2005.

Ryan Hansen, Matt Leonard and Ron Taylor

The Algebraic Case of a Conjecture of Nakanishi

Proceedings: Third Annual Harriet J. Walton Symposium on Undergraduate Mathematics Research, 2005.

Ryan Hansen and Ron Taylor

Optimization of Cubic Polynomial Functions without Calculus

Mathematics Teacher, v101 n 6 p408-11 (Feb 2008)

Cover Article

Ryan Hansen, Matt Leonard and Ron Taylor

The Algebraic Case of a Conjecture of Nakanishi

Missouri Journal of Mathematical Sciences, v21 n 2 p127-35 (2009)

John Goldwasser and Ryan Hansen

The exact Turán number of F(3,3) and all extremal configurations

David Miller, Jessica M. Deshler and Ryan Hansen

Bunny hops: using multiplicities of zeroes in calculus for graphing

International Journal of Mathematical Education in Science and Technology, 2015, 47:5, 803-813

Maria Axenovich, John Goldwasser, Ryan Hansen, Bernard Lidický, Ryan R. Martin, David Offner, John Talbot, Michael Young

Polychromatic colorings of complete graphs with respect to 1-, 2-factors, and Hamiltonian cycles

John Goldwasser and Ryan Hansen

Polychromatic colorings of 1-regular and 2-regular subgraphs of complete graphs

John Goldwasser and Ryan Hansen

Maximum density of vertex-induced perfect cycles and paths in the hypercube

In Progress

Published

John Goldwasser and Ryan Hansen

Inducibility in the hypercube

Jessica Deshler, Ryan Hansen and David Miller

A formative assessment study in college trigonometry resulting in significant student performance benefits

Ryan Hansen

Active learning activitites with manipulatives in undergraduate courses

Presentations

Polychromatic colorings of certain subgraphs of complete graphs and maximum densities of substructures of a hypercube

March 2022, West Virginia University

On maximum densities of vertex induced partial subcubes in a hypercube and polychromatic colorings of complete graphs with respect to 1-regular subgraphs

December 2021, West Virginia University

Turán 4-graphs and isomorphic vertex induced copies of a particular subgraph in the 4-cube

May 2014, 27th Cumberland Conference

A Turán 4-graph connection to the maximum copies of a particular subgraph in the 4-cube

April 2014

Maximum copies of an induced subgraph in the n-cube

April 2014

The exact Turán number of a particular 3-graph (II)

October 2012

The exact Turán number of a particular 3-graph (I)

October 2012

November 2009, WVU Math Symposium

March 2008, West Virginia University

An Unknotting Operation for Algebraic Knots

Poster: Mathematical Association of America

Southeastern Section, 85th annual Meeting

The Algebraic Case of a Conjecture of Nakanishi

Third Annual Harriett J. Walton Symposium

Optimization without Calculus

Third Annual Harriet J. Walton Symposium

Go find out! Developing undergraduate research

Plenary Talk, Berry College Symposium on Student Scholarship, 2005

Grants

Memberships

Awards/Positions

WVU National Research Experience for Undergraduates (NREUP), SU 2013

Mathematical Association of America (NSA Grant H98230-13-1-0270),

NSF Grant DMS-1156582

WVU Department of Mathematics,

WVU Eberly College of Arts and Sciences

Curriculum Development Grant, SU 2012

WVU Eberly College of Arts and Sciences

Curriculum Development Grant (Trigonometry), SU 2010

WVU Department of Mathematics

Curriculum Development Grant (Calculus 1), SU 2010

WVU Department of Mathematics

American Radio Relay League, 2016 – present

American Mathematical Society, F 2005 – present

Mathematical Association of America, F 2006 – present

Pi Mu Epsilon Mathematics Honors Society, F 2006 – present

Phi Mu Alpha Sinfonia Men's Music Fraternity, F 2001 – present

Teaching Assistant Professor, Statistics, WVU F 2022 – present

Instructor of Mathematics, WVU, F 2008 – 2022

Graduate Assistantship, S 2006 – S 2008

West Virginia University Mathematics

Tuition Waiver, F 2005

West Virginia University Mathematics

Best Organized Presentation, S 2005

Berry College Symposium for Student Scholarship

Most Original Research, S 2005

Berry College Symposium for Student Scholarship

ΦMA Alumni Secretary, F 2005 – S 2007

ΦMA President, F 2004 – S 2005

ΦMA Fraternity Education Officer, F 2002 – S 2004