# REGS in Combinatorics - Univ. of Illinois

"REGS" means "Research Experiences for Graduate Students". The Combinatorics
REGS program began in 2004 as a lively collaborative research group where many
problems are proposed and students work in groups on the problems that interest
them. Presented by faculty, visitors, and students, the problems come from
conferences, web pages, journal articles, etc. The program provides an early
exposure to research and exposition, thereby increasing mathematical maturity
and easing the transition from coursework to research. The usual schedule has
been MWF 10:30-12 and 2-5 (more intensively during the first week). Many joint
papers have emerged; projects may or may not lead to thesis research.
Further information appear in the
yearly reports:
2012;
2011;
2010;
2009;
2007;
2006;
2005;
2004.
**
The grant that funded the REGS program for 2010-2013 has now ended.
No further funding is anticipated, and hence this REGS program is not
continuing in a formal way. Other similar programs may be started
at other institutions.
**

**Note on MathJax:**
Pages since mid-Summer 2011 use MathJax. Notation is typed in equation mode of
TeX, between dollar signs or double dollar signs. Page-loading is slightly
delayed while Mathjax computes the display. To customize display, right-click
on notation and explore the menus; changes persist. Mathjax does not recognize
TeX font commands for text or layout; html is still needed to italicize words,
make tables, etc. Since html swallows input after "<", use "\lt" for "less
than" and "\gt" for "greater than" in notation. All html character codes start
with "&" and end with ";". Characters copied from MathSciNet references may be
garbled. Pages should be tested in a browser before submission and should use
the same style as pages already posted.

For basic terminology not given on problem pages, see the
Glossary.

## Problems presented in Summer 2013

The **2013 RESULTS PAGE** lists
results obtained in REGS toward or related to the problems proposed. This
year only results sent in by the students are being posted.
## Problems presented in Summer 2012

The **2012 RESULTS PAGE** lists
results obtained in REGS toward or related to the problems proposed.
## Problems presented in Summer 2011

The **2011 RESULTS PAGE** lists
results obtained in REGS toward or related to the problems proposed.
## Problems presented in Summer 2010

The **2010 RESULTS PAGE** lists some
of the results obtained in REGS toward or related to the problems proposed.
The Louisville group prepared pdf writeups of 16
problems in a single file. A few of these problems also appear above.
## Problems presented in Summer 2009

The Louisville group has prepared pdfs of their problems:
Summary 1,
Summary 2
## Problems presented in Summer 2008

The Louisville group has prepared pdfs of their problems:
Summary 1,
Summary 2,
Summary 3
## Selected problems presented in Summer 2007

There were almost 40 problems presented in Summer 2007; some appear here.