AMS and ACGT Seminar, Jim Swift
AMS and ACGT Seminar
Applied Math Seminar (AMS)
Spring 2019
In talks on the Equivariant Branching Lemma, I talk about an example I used in my PhD thesis. Here is the start of
Chapter 2. Here is a mathematica notebook about invariant subspaces in the level 2 Sierpinski pre-gasket.
Fall 2018
Towards an O(h^2) 0-Neumann finite difference scheme for the Laplacian.
One-dimensional region: fppFiniteDifference.nb,
Two-dimensional region with one grid point outside region (Edge case) NeumannBC1pt.nb,
Two-dimensional region with two grid points outside region (corner case) NeumannBC2pt.nb.
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: L9R and R9L.
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
< s1, s2, s3 : e =
s12 = s22 = s32 =
(s1 s2)3 =
(s2 s3)3 =
(s3 s1)3 > = Ã2
in terms of Coxeter Generators
Tiling of elements of the Coxeter Groups I∞ and
< s1, s2, s3 : e =
s12 = s22 = s32 =
(s1 s2)4 =
(s2 s3)4 > = C2-tilde
in terms of Coxeter Generators
Tiling of elements of the Coxeter Group
< s1, s2, s3 : e =
s12 = s22 = s32 =
(s1 s2)4 =
(s2 s3)4 > = C2-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
