tenure

This is an edited review of my scholarship, as of Spring 2014.

I started working at Drake University in August 2009. Coming out of my postdoctoral position at Iowa State University in May 2009, I was active in the combinatorial matrix theory community. With the UTMOST grant award in 2010, a $525,000 4-year NSF grant to promote open-source software and open-source textbooks, I have shifted a lot my attention recently to open-source mathematics and scientific software, such as Sage.

Here is my Curriculum Vitæ. I also have a MathSciNet publication list and an arxiv.org preprint list that cover most of my publications.

In reverse chronological order, here are my papers in combinatorial matrix theory. As a general rule, I prefer to submit to open-access journals.

Citation | |
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Steve Butler, Jason Grout, and Tracy Hall, Using variants of zero forcing to bound the inertia set of a graph, 12 pages. Submitted. | Preprint Arxiv |

Luz M. DeAlba, Jason Grout, In-Jae Kim, Steve Kirkland, Judith J. McDonald, and Amy Yielding, Minimum rank of powers of trees, Electron. J. Linear Algebra 23 (2012), 151–163 | Paper Journal |

Steve Butler and Jason Grout, A construction of cospectral graphs for the normalized Laplacian, Electron. J. Combin. 18 (2011), no. 1, Research Paper 231, 20 | Paper Journal |

Jason Grout, The minimum rank problem over finite fields, Electron. J. Linear Algebra 20 (2010), 691–716 | Paper Journal |

Laura DeLoss, Jason Grout, Leslie Hogben, Tracy McKay, Jason Smith, and Geoff Tims, Techniques for determining the minimum rank of a small graph, Linear Algebra Appl. 432 (2010), no. 11, 2995–3001 | Preprint |

IMA-ISU research group on minimum rank, Minimum rank of skew-symmetric matrices described by a graph, IMA-ISU research group members: Mary Allison, Elizabeth Bodine, Luz Maria DeAlba, Joyati Debnath, Laura DeLoss, Colin Garnett, Jason Grout, Leslie Hogben, Bokhee Im, Hana Kim, Reshmi Nair, Olga Pryporova, Kendrick Savage, Bryan Shader and Amy Wangsness Wehe, Linear Algebra Appl. 432 (2010), no. 10, 2457–2472. | Preprint |

Started working at Drake in August 2009; the following three papers were published before starting at Drake | |

Luz M. DeAlba, Jason Grout, Leslie Hogben, Rana Mikkelson, and Kaela Rasmussen, Universally optimal matrices and field independence of the minimum rank of a graph, Electron. J. Linear Algebra 18 (2009), 403–419 | Paper Journal |

Wayne Barrett, Jason Grout, and Raphael Loewy, The minimum rank problem over the finite field of order 2: minimum rank 3, Linear Algebra Appl. 430 (2009), no. 4, 890–923 | Preprint Arxiv |

D. Cvetkovic and J. Grout, Graphs with extremal energy should have a small number of distinct eigenvalues, Bull. Cl. Sci. Math. Nat. Sci. Math. 32 (2007), 43–57 | Preprint Arxiv |

Citation | Available |
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Robert Beezer, Robert Bradshaw, Jason Grout, and William Stein, Sage, Handbook of linear algebra, Second edition (Leslie Hogben, ed.), Discrete Mathematics and its Applications (Boca Raton), Chapman & Hall/CRC, Boca Raton, FL, (2013), 26 pages. | Chapter, html version |

Jason Grout, The Sage Mathematical Software System, International Linear Algebra Society Bulletin: IMAGE (Fall 2013), pp. 31–33. | Article (Full bulletin) |

Citation | Available |
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David Holcomb, Eric D. Manley, Jason Grout, and Alex Hoyer, On the Integral Coding Advantage in Unit Combination Networks, 13 pages. In preparation. | Preprint |

Many of the links below lead to Github, an online repository for open-source software. My username on Github is jasongrout, which might be helpful if you are clicking on a link below and see lots of usernames.

I have been a very active participant in the open-source mathematical software world, particularly with Sage, for over 7 years. Since I started at Drake (August 2009), I have contributed to code reviews and contributions 2,837 times on 834 separate “issues” across 43 areas of Sage, including graph theory, linear algebra, graphics, online interfaces, scientific computing packages, and many more. I also have contributed 160 peer-reviewed code contributions myself (involving adding/deleting/changing over 55,000 lines of code and documentation). This puts me in the top 15 contributors to Sage over the last 5 years out of around 700 total contributors.

In addition to working on the core Sage library, I have also worked on the following peer-reviewed projects over the last 5 years:

**Sage Notebook**, an online interface to Sage: 216 code contributions adding/deleting/changing 297,931 lines. I was the lead developer for much of the last 5 years.

* **Sage Cell Server**, another online interface to Sage allowing anyone to easily embed live Sage computations into any webpage: 1201 code contributions adding/deleting/changing 137,441 lines. I am the lead developer and mentored 6 undergraduate Drake students who wrote and reviewed code. I also maintain the public sage cell server at https://sagecell.sagemath.org, which serves around 2,000 computations each day requested from all over the world. The cell server is used in a number of online resources, including textbooks, notes, online homework systems, and more. (Edit: As of May 2014, Andrey Novoseltsev maintains and leads development for the Sage Cell Server)

**IPython**, a very popular and easy-to-use interface to Python: 59 code contributions adding/deleting/changing 3906 lines. I helped with major enhancements like their new interactive widget framework and also contributed bugfixes and smaller enhancements.

* **Minimum Rank Library**, a library for calculating the minimum rank, zero forcing numbers, and other related parameters on graphs: 58 code contributions adding/deleting/changing 4715 lines. I was the lead developer and also mentored several graduate students from Iowa State University who developed part of the library. This library is used by active researchers in exploring minimum rank problems.

Additionally, I contributed some peer-reviewed bugfixes and enhancements to the three.js 3d web graphics project and the online homework system Webwork.

- PyThreeJS, a wrapper around three.js to provide interactive 3d graphics for the online IPython notebook: 102 code contributions adding/deleting/changing 9452 lines. I am the lead developer and mentored 3 Drake students in this project. We have just completed the initial version, and will start promoting it for wider use as a way to do 3d graphics in the IPython notebook.

* Multi-mechanize, a suite of programs to test scalability of websites: 30 commits involving adding/deleting/changing 1191 lines.

- Rob Beezer, Jason Grout, Marja-Liisa Hassi, Tom Judson, Kiran Kedlaya, and William Stein,
*UTMOST: Undergraduate Teaching in Mathematics with Open Software and Textbooks*, $525,000, National Science Foundation, 2010-2014. Original Proposal, Supplement. NSF Department of Undergraduate Education CCLI type 2 grant for integrating and promoting Sage and open textbooks in undergraduate mathematics curriculum. My responsibilities include implementing improvements to Sage, directing work by students, training faculty and supervising test sites, helping organize workshops, and contributing curricular materials. See also the UTMOST website. - Rob Beezer, Karl-Dieter Crisman, and Jason Grout,
*Sage: Using Open-Source Mathematics Software with Undergraduates*, \$10,400, Mathematical Association of America Professional Enhancement Program, 2010. Proposal for 2010 (Supplement), Report for 2010. We introduced several dozen faculty members to using Sage in the classroom and helped them prepare curricular materials through an online workshop spanning several days throughout the summer and follow-up during the semester. - Karl-Dieter Crisman and Jason Grout,
*Sage: Using Open-Source Mathematics Software with Undergraduates*, \$8,500, Mathematical Association of America Professional Enhancement Program, 2011. Proposal for 2011, Report for 2011. We introduced several dozen faculty members to using Sage in the classroom and helped them prepare curricular materials through an online workshop spanning several days in the summer and follow-up during the semester. - Jason Grout,
*Scalable Internet Interface for Sage*, \$2,340, Drake University, 2011. Proposal. This grant funded two Drake student assistants to help design and write a scalable public Internet interface to the Sage, allowing Sage to embed in any webpage.

- Rob Beezer, Jason Grout, Tom Judson, Kiran Kedlaya, Susan Lynds, Kent Morrison, and William Stein,
*UTMOST: Undergraduate Teaching in Mathematics with Open Software and Textbooks*, $2,352,968, National Science Foundation, 2014-2019. Proposal. NSF Department of Undergraduate Education IUSE grant for integrating and promoting Sage and open textbooks in undergraduate mathematics curriculum. My responsibilities would include implementing improvements to Sage, leading development of the Sage Cell Server, directing work by students, training faculty, and helping organize workshops.

I was awarded the 2012 Spies Prize, an annual cash award to recognize “major and inspiring contributions to the development of the Sage Mathematical Software System.”

I've labeled presentations with one of the following areas:

- research: pure math research, such as combinatorial matrix theory
- teaching: improving teaching, such as explaining ideas or helping teachers know how to use electronic resources like Sage
- technical: explaining technical infrastructure, such as how the backend of a Sage service works or the technical details of how we implemented the Sage Cell Server

I have also listed when I was a funded participant of a workshop, i.e., the workshop paid for my travel and/or local expenses.

- 2009
- Contributed teaching talk: “Online Interactive Worksheets with Sage”, MAA Mathfest, Portland, Aug 2009
- Invited teaching talk and funded participant: “Sage and Multivariable Calculus”, Sage Education Day 1, Clay Mathematics Institute, Boston, Dec 2009
- Invited research talk and funded participant: “Computing bounds for minimum rank with Sage”, Banff International Research Center, Banff, Canada, Jan 2010
- Invited teaching talk: “SageTeX”, BYU faculty teaching seminar, Mar 2010
- Invited research talk: “Computation of Minimum Rank”, AMS Central Section Meeting, April 2010
- Contributed teaching talk: “SageTeX”, MAA Iowa Section Meeting, Oct 2010

* 2011

- Contributed teaching talk: “Eigenvalues first? Teaching linear algebra with computation, then application, then theory”, and poster for UTMOST grant in CCLI grant poster session, AMS/MAA Joint Meetings, New Orleans, LA, Jan 2011
- Invited research talk and funded participant: “Single-cell Notebook Server”, Sage Days 31, Seattle, WA, June 2011
- Invited teaching talk and funded participant: “Numerical Analysis in Sage”, Sage Education Days 3, Seattle, WA, June 2011
- Organizer for Sage exhibit booth; contributed teaching talk: “Sage: free open-source math software”, MAA Mathfest, Lexington, KY, August 2011. I also gave several presentations from the Sage booth on using Sage in different classes.
- Contributed teaching talk: “Free Online Homework with Webwork”, MAA Iowa Sectional Meeting, Pella, IA, October 2011

* 2012

- Invited research talk: “Computing inertia sets of graphs using variations of zero forcing”, AMS/MAA Joint Meetings, Boston, MA, Jan 2012. I also helped present a poster on UTMOST at the NSF poster session.
- Co-organizer and funded participant: Sage Days 35.5, Wenham, MA, Jan 2012
- Invited teaching talk: “Free open-source software and textbooks for mathematics”, Drake DUSCI Colloquium Series, April 2012
- Invited technical talk and funded participant: “State of the Notebook”, Sage Days 41, Seattle, WA, June 2012
- Invited teaching talk and funded participant: “Sage Single Cell Server”, Sage Education Days 4, Seattle, WA, June 2012
- Co-organizer, Contributed teaching workshop: “An introduction to Sage” (with Theron Hitchman), MAA Iowa Section Meeting, Indianola, IA, Oct 2012
- Contributed teaching talk: “Lights Out!”, Drake Math Club talk, Oct 2012

* 2013

- Invited teaching talk: “The Sage Cell Server: embedding live computations in web pages”, AMS/MAA Joint Meetings, San Diego, CA, Jan 2013. I also helped present a poster on UTMOST at the NSF poster session.
- Invited research talk: “Bounds on maximum nullity”, AMS Central Section, Ames, IA, April 2013
- Invited teaching talk, “The Sage Cell server and other technology in teaching”, International Linear Algebra Society, Providence, RI, June 2013
- Invited technical talk and funded participant, “State of the Sage Cell Server”, Sage Days 48, Seattle, WA, June 2013
- Co-organizer, invited teaching talks, and funded participant: “Sage Cell Server” and “Introduction to Interacts”, Sage Education Days 5, Seattle, WA, June 2013

* 2014

- Invited teaching talk, “Sage mathematics software in the classroom”, AMS/MAA Joint Math Meetings, Baltimore, MD, Jan 2014

* Other conferences/workshops I participated in:

- Participant: NSF day, U of Iowa, Oct 2009
- Participant: AMS/MAA Joint Meetings, San Francisco, Jan 2010
- Invited funded participant: Sage Bug Days 2, Seattle, Jan 2010
- Participant: AMS/MAA Joint Meetings, San Francisco, Jan 2010
- Invited funded participant: Sage Days 19, Seattle, Jan 2010
- Invited funded participant: Math in the City workshop, Dec 2010
- Invited funded participant: CCR workshop, San Diego, CA, Feb 2011
- Invited funded participant: Sage Days 27, Seattle, WA, Jan 2011
- Invited funded participant: Sage Days 29, Seattle, WA, Mar 2011
- Invited funded participant, Sage Days 46, Hawaii, Feb 2013

**Multivariable Calculus**: Ben Woodruff and I have been working on a semester-long set of problems to explore multivariable calculus, and both of us have used versions of these notes for many years. A PDF version is gradually being superseded by an online version. These problems are based on an older lecture-style set of notes by Ben and myself. Ben wrote the initial versions of both the lecture-style notes and the problem set, and then I extensively modified and edited them.**Numerical Linear Algebra**: I developed a set of problems to guide an undergraduate student through a semester course using Trefethen and Bau's Numerical Linear Algebra textbook. We used these notes in a problem-oriented course.

In June 2014, I went on academic leave of absence and worked with the quantitative finance research group at Bloomberg L.P. in New York to build software useful in quantitative finance. At the conclusion of the 2014-2015 academic year, I left Drake University to continue working at Bloomberg.

Here is a very incomplete list of articles and other things since 2014.

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International