This section is primarily designed for my current students, but if you are not one of my students and somehow found your way here, feel free to poke around. Unless stated otherwise, content on this site that is authored by Dana C. Ernst is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

My current office hours for Fall 2021 are MW 2:00-3:00, T 10:00-12:00, Th 10:00-11:00 (or by appointment). My office is located in room 176 of the Adel Mathematics Building (Building 26).

Here are the courses that I am currently teaching (Fall 2021) at Northern Arizona University.

- MAT 320: Foundations of Mathematics, Fall 2021
- MAT 431: Introduction to Analysis, Fall 2021
- MAT 511: Abstract Algebra I, Fall 2021

This is a (partial) list of courses that I have taught over the past several semesters. **Note:** Some of the links on the pages below may be outdated.

- MAT 431: Introduction to Analysis, Spring 2021
- MAT 526: Topics in Combinatorics, Spring 2021
- MAT 136: Calculus I, Fall 2020
- MAT 232: Introduction to Mathematical Reasoning, Fall 2020
- MAT 411: Introduction to Abstract Algebra, Fall 2020
- MAT 320: Foundations of Mathematics, Spring 2020
- MAT 431: Introduction to Analysis, Spring 2020
- MAT 232: Introduction to Mathematical Reasoning, Fall 2019
- MAT 411: Introduction to Abstract Algebra, Fall 2019
- MAT 441: Introduction to Topology, Spring 2019
- MAT 526: Topics in Combinatorics, Spring 2019
- MAT 220: Introduction to Mathematical Reasoning, Fall 2018
- MAT 411: Introduction to Abstract Algebra, Fall 2018
- MAT 220: Introduction to Mathematical Reasoning, Spring 2018
- MAT 411: Introduction to Abstract Algebra, Spring 2018
- MAT 220: Introduction to Mathematical Reasoning, Fall 2017
- MAT 411: Introduction to Abstract Algebra, Fall 2017
- MAT 220: Introduction to Mathematical Reasoning, Spring 2017
- MAT 320: Foundations of Mathematics, Spring 2017
- MAT 411: Introduction to Abstract Algebra, Fall 2016
- MAT 526: Topics in Combinatorics, Fall 2016
- MAT 411: Introduction to Abstract Algebra, Spring 2016
- MAT 612: Abstract Algebra II, Spring 2016
- MAT 136: Calculus I, Fall 2015
- MAT 511: Abstract Algebra I, Fall 2015
- MAT 220: Introduction to Mathematical Reasoning, Spring 2015
- MAT 690: Reflection Groups and Coxeter Groups, Spring 2015
- MAT 136: Calculus I, Fall 2014
- MAT 411: Introduction to Abstract Algebra, Fall 2014
- MAT 136: Calculus I, Spring 2014
- MAT 136: Calculus I, Fall 2013
- MAT 411: Introduction to Abstract Algebra, Fall 2013
- MAT 136: Calculus I, Spring 2013
- MAT 320: Foundations of Mathematics, Spring 2013
- MAT 136: Calculus I, Fall 2012

- MA2560: Calculus II, Spring 2012
- MA3110: Logic, Proof, & Axiomatic Systems, Spring 2012
- MA2560: Linear Algebra, Spring 2012
- MA2560: Calculus III, Spring 2012
- MA2000: Introduction to Formal Mathematics, Fall 2011
- MA2550: Calculus I, Fall 2011
- MA4140: Abstract Algebra, Fall 2011
- MA2560: Calculus II, Spring 2011
- MA3110: Logic, Proof, & Axiomatic Systems, Spring 2011
- MA4220: Number Theory, Spring 2011
- MA2000: Introduction to Formal Mathematics, Fall 2010
- MA2550: Calculus I, Fall 2010
- MA4510: Introduction to Analysis, Fall 2010
- MA2560: Calculus II, Spring 2010
- MA4140: Algebraic Structures, Spring 2010
- MA2550: Calculus I, Fall 2009
- MA2560: Calculus II, Fall 2009
- MA3110: Logic, Proof, and Axiomatic Systems, Fall 2009
- MG 5860: Visual Group Theory, Summer 2009
- MA2550: Calculus I, Spring 2009
- MA2560: Calculus II, Spring 2009
- MA3110: Logic, Proof, and Axiomatic Systems, Spring 2009
- MA2550: Calculus I, Fall 2008
- MA3110: Logic, Proof, and Axiomatic Systems, Fall 2008

Mathematics & Teaching

Northern Arizona University

Flagstaff, AZ

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928.523.6852

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MAT 320: Foundations of Math

MAT 431: Intro to Analysis

MAT 511: Abstract Algebra I

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Unless stated otherwise, content on this site is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

The views expressed on this site are my own and are not necessarily shared by my employer Northern Arizona University.

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Flagstaff and NAU sit at the base of the San Francisco Peaks, on homelands sacred to Native Americans throughout the region. The Peaks, which includes Humphreys Peak (12,633 feet), the highest point in Arizona, have religious significance to several Native American tribes. In particular, the Peaks form the Diné (Navajo) sacred mountain of the west, called Dook'o'oosłííd, which means "the summit that never melts". The Hopi name for the Peaks is Nuva'tukya'ovi, which translates to "place-of-snow-on-the-very-top". The land in the the area surrounding Flagstaff is the ancestral homeland of the Hopi, Ndee/Nnēē (Western Apache), Yavapai, A:shiwi (Zuni Pueblo), and Diné (Navajo). We honor their past, present, and future generations, who have lived here for millennia and will forever call this place home.