AMS and ACGT Seminar, Jim Swift
#
AMS and ACGT Seminar

##
Applied Math Seminar (AMS)

### Fall 2016

Coupled Oscillators
### Spring 2014

Ridders' Method. Here are a few Mathematica notebooks;
rootfindingwithbracketing.nb and rootfindingwithbracketingfigures.nb.
### Fall 2013

Finding periodic orbits in the Lorenz Attractor. Here is a cdf of the banner image at the math department site.
This shows two periodic orbits: L^{9}R and R^{9}L.
Here is the Mathematica notebook that produced that image.
##
Algebra, Combinatorics, Geometry and Topology (ACGT) seminar series at NAU

The logo for ACGT is a picture of the biology building at Rice University, at which location the letters stand for
Adenine, Cytosine, Guanine, and Thymine, the four nucleic acid bases that make up DNA.
### Fall 2014

I did this example of the Petrie of the Tetrahedron as a "homework" for of Steve Wilson's
series entitled "Operators on Maniplexes, whatever *they* are".
###
Spring 2013:

Figure inspired by Mike Falk's talk on Jan. 22.
Mathematica demonstration 4 ODEs used in Jim Swift's AMS 2013-02-28.

### Fall 2012

Dana Ernst gave several talks about Coxeter groups. I made several drawings scanned here:

Tiling of elements of the Coxeter Group
< s_{1}, s_{2}, s_{3} : e =
s_{1}^{2} = s_{2}^{2} = s_{3}^{2} =
(s_{1} s_{2})^{3} =
(s_{2} s_{3})^{3} =
(s_{3} s_{1})^{3} > = Ã_{2}
in terms of Coxeter Generators

Tiling of elements of the Coxeter Groups I_{∞} and
< s_{1}, s_{2}, s_{3} : e =
s_{1}^{2} = s_{2}^{2} = s_{3}^{2} =
(s_{1} s_{2})^{4} =
(s_{2} s_{3})^{4} > = C_{2}-tilde
in terms of Coxeter Generators

Tiling of elements of the Coxeter Group
< s_{1}, s_{2}, s_{3} : e =
s_{1}^{2} = s_{2}^{2} = s_{3}^{2} =
(s_{1} s_{2})^{4} =
(s_{2} s_{3})^{4} > = C_{2}-tilde
in terms of heaps
### Spring 2012

February 2, 9, 16: Jim Swift talked on three subjects:
TOOT and OTTO. A "simple strategy game for ages 4-8".
Here is a proposal for game notation.

Efforts to make a really big image of the
Logistic Map Bifurcation Diagram (6957 KB).
This one is 6800 x 2300 pixels, which is 34 in x 11.5 in at 200 dpi.
Physics has a color printer that can print 34 inches by any length. My goal to
to make a huge bifurcation diagram with 20000 x 6800 pixels, which is 100 in x 34 in
at 200 dpi,
for the halls of the Math building.

Here is a small copy of the Mural that should be at the Lumberjack Mathematics Center.
The bit-mapped part in the upper right corner (which didn't get printed at the LMC) is 29,754 x 9,000 pixels in the full-sized original.

Symmetric Embeddings of Graphs. Here is an example for the Petersen Graph

#
Neuberger-Swift Seminar

### Fall 2014

Mathematica notebook with an example of the polynomial f trick for the GNGA.

Blank page.
Jim Swift's home page
Department of Mathematics
NAU Home Page

e-mail: Jim.Swift@nau.edu