| Aug 23: Organizational Meeting
|
| Aug 30: Jamie Radcliffe,
Extremal Independent Sets (abstract)
|
| Sep 6: Katie Johnson,
The Technique of "Focusing'' in Ramsey Theory (abstract)
|
| Sep 13: Derek Boeckner,
Ramsey Theory Continued (abstract)
|
| Sep 20: Jeonghan Ko, UNL Engineering,
An Application of Mixed Integer Programming in Industrial Engineering: Module-Centric Approach to Integrated Adaptation of Assembly Products and Supply Chains (abstract)
|
| Sep 27: Jason Smith, Iowa State University,
Induced Saturation Number (abstract)
|
| Oct 4: Zach Roth,
Channel Polarization (abstract)
|
| Oct 11: No Seminar - moved to Thursday. (Sectional meeting this weekend)
|
| Oct 13: Special Seminar - Thursday, Oldfather 205, 2:30-3:30pm, Neal Bushaw, University of Memphis,
Turán numbers of Multiple Paths and Equibipartite Trees (abstract)
|
| Oct 18: No Seminar. (Fall break)
|
| Oct 25: Sarah Behrens,
Compressions and Isoperimetric Inequalities (abstract)
|
| Nov 1: Lauren Keough,
Maximizing Matchings in Threshold Graphs (abstract)
|
| Nov 8: Derrick Stolee,
Even More Generalizations of van der Waerden (abstract)
|
| Nov 15: James Carraher,
Mr. Paint and Mrs. Correct a Marker/Remover Game (abstract)
|
| Nov 22: No Seminar. (Thanksgiving break)
|
| Nov 29: Stephen Hartke, An entropy compression approach to nonrepetitive sequences (abstract)
|
| Dec 6: Marcelo Firer, Universidade Estadual de Campinas (UNICAMP),
Coding in the presence of semantic value of information (abstract)
|
| Jan 11: No Seminar.
|
| Jan 18: Tyler Seacrest,
Degree Sequences, Bisections, and Edge-Disjoint 1-factors (abstract)
|
| Jan 25: No Seminar (special talk on Thursday instead).
|
| Jan 27: (Note: this is a Thursday and the talk will be in Oldfather 207 from 2-2:50pm) Fan Chung, University of California, San Diego,
Flipping edges and vertices in graphs (abstract)
|
| Feb 1: Adam Azzam, Game Theory and School Choice (abstract)
|
| Feb 8: Mike Ferrara, University of Colorado, Denver,
Saturation numbers for Families of Ramsey-Minimal Graphs (abstract)
|
| Feb 15: Jamie Radcliffe,
Enumeration problems for homomorphisms (abstract)
|
| Feb 22: Katie Johnson,
The Linear Algebra Method (abstract)
|
| Mar 1: No Seminar.
|
| Mar 8: Brendon Stanton, Iowa State University,
Vertex Identifying Codes (abstract)
|
| Mar 15: Derek Boeckner,
Limits of Dense Graph Sequences (abstract)
|
| Mar 22: No Seminar (Spring Break)
|
| Mar 29: Stephen Hartke,
Brooks' Theorem from the Alon--Tarsi Theorem (abstract)
|
| Apr 5: Katie Johnson,
The Magic of Universal Cycles (abstract)
|
| Apr 12: (Special Place: Avery 347) Andrew Ray,
Extremal Trees and Reconstruction (abstract) |
| Apr 19: (Special Place: Avery 347) Tyler Seacrest,
Packings and Realizations of Degree Sequences with Specified Substructures (abstract) |
| Apr 26: Jay Cummings,
Invariants of Replacement Product Graphs (abstract) |
| Aug 24: No Seminar.
|
| Aug 31: Ryan Martin, Iowa State,
Recent results on the edit distance of graphs. (abstract)
|
| Sept 7: Derrick Stolee, The Lovasz
Cathedral Theorem and Applications (abstract)
|
| Sept 14: Tyler Seacrest, A
circuitous proof of the Erdos-Gallai Theorem (abstract)
|
| Sept 21: Zach Roth, Public-key
cryptography using error-correcting codes,
(abstract)
|
| Sept 28: No Seminar.
|
| Oct 5: Kenneth Monks, Colorado State University, The
Odd Partition Poset and Moebius Numbers.(abstract)
|
| Oct 12: Andrew Ray, Reconstructing
Trees from their Wiener Matrix or Subtree Matrix.(abstract)
|
| Oct 19: No Seminar, Fall Break. |
| Oct 26: Josh Laison, Willamette
University, Obstacle Numbers of Graphs (abstract).
|
| Nov 2: James
Sellers, Penn. State University,
Enumeration of the degree sequences of non-separable graphs and connected
graphs. (abstract)
|
| Nov 9: No Seminar (Math Day)
|
| Nov 16: Rebecca Swanson, Nebraska Wesleyan University,
Coloring Complexes (abstract).
|
| Nov 23:
Derrick Stolee, The Lovasz Two Ear Theorem and the Enumeration of
1-Extendable Graphs (abstract)
|
| Nov 30: (NOTE: Room 19, Avery Hall)
Joerg
Kliewer, New Mexico State University, Coding Strategies for the
Wiretap Channel and for Secure Network Coding (abstract).
|
| Dec 7: Adam
Azzam, TBA. |
| Jan 12: No Seminar
|
| Jan 19: Oliver Collins, University of Notre Dame,
Continuous waveforms from binary signals
|
| Jan 26: No Seminar
|
| Feb 2:
Christine Kelley , Coding for the wiretap channel
|
| Feb 9:
Tyler Seacrest , More on coding for the wiretap channel
|
| Feb 16:
Derrick Stolee , Topics in Graph Automorphisms (abstract)
|
| Feb 23:
Andrew Ray , Computing the Characteristic Polynomial of Graphs (abstract)
|
| Mar 2:
Kathryn Haymaker , Perfect codes in the Lee metric (abstract)
|
| Mar 9: Michael Barrus, Black Hills State University,
South Dakota, Substitution closures of the split graphs and matrogenic
graphs (abstract)
|
| Friday Mar 12: Derrick Stolee ,
Proposal Defense, Symmetric Optimization ,
(abstract) , 10:30-11:10 am, Avery 347 (Note special day and
time)
|
| Mar 16: No Seminar (Spring Break)
|
| Monday Mar 22: Deanna Dreher , PhD
defense. Pseudocodewords on Graph Covers and Computation Trees ,
3:00 pm, Avery 351 (Note special day and time)
|
| Mar 30:
Nathan Axvig and
Katie Morrison . Two short talks: "The Generalized Omura Decoder" by
Nathan Axvig and "Towards a Duality Theory of Subspace Codes for Network
Coding" by Katie Morrison
|
| Monday Apr 5, 2:35 pm, Avery 351: Jeremy
Martin, University of Kansas, Graph Varieties (abstract)
(Note special time and day)
|
| Apr 13: Cancelled so that people can attend Anthony
DeLegge's dissertation defense. 1:30-3pm in 304 Oldfather Hall,
"Mathematical Modeling of Optimal Seasonal Reproduction Strategies of
Plant Populations and a Comparison of Long-Term Viabilities of Annuals
and Perennials"
|
| Apr 20: John
Orr , The PageRank Algorithm and Web Search Engines (abstract)
|
| Apr 27: Vinod
Variyam , Green's Theorem and Isolation in Planar Graphs (abstract)
|
| Aug 25:
Christine Kelley, Organizational meeting/ a graph-theoretic approach
to designing hash functions (abstract)
|
| Sept 1:
Tyler Seacrest, A packing problem and a potential packing problem
(abstract)
|
| Sept 8:
Stephen Hartke, Packings of degree sequences
(abstract)
|
| Sept 15:
Katie Johnson, Counting Lower Hessenberg Matrices
(abstract)
|
| Sept 22: Andrew
Ray, Festoon Trees (abstract)
|
| Sept 29:
Katie Morrison, Error-correction coding for an operator channel:
Combinatorial bounds on the trade-off between the size of these codes and
their minimum distance (abstract)
|
| Oct 6:
Katie Morrison, Error-correction coding for an operator channel
(Part II):
Combinatorial bounds on the trade-off between the size of these codes and
their minimum distance (abstract)
|
| Oct 13:
Jamie Radcliffe, Extremal graphs for the number of k-colourings (abstract)
|
| Oct 20: Fall break, no seminar.
|
| Oct 27: No seminar.
|
| Nov 3:
Carina Curto, Geometry of stable cliques in neural networks (abstract)
|
| Nov 10:
Stephen Hartke, The Gallai-Edmonds theorem
(abstract)
|
| Nov 17:
Judy Walker, Codes on Graphs: Shannon's Challenge and Beyond (abstract).
|
| Nov 24: No seminar.
|
| Dec 1:
Jamie Radcliffe
|
| Dec 8: Pascal
Vontobel, Hewlett-Packard, Connections
between the edge zeta function of a graph, counting in graph
covers, and message-passing iterative decoding (abstract).
|
| Jan 13: Stephen Hartke, Fisher's proof for tournaments of Seymour's 2nd neighborhood conjecture (abstract)
|
| Jan 20: Jamie Radcliffe, Threshold graphs and the Grone-Merris conjecture (abstract)
|
| Jan 27: Derrick Stolee, Log-space algorithm for reachability problem in planar DAGs
with few sources (abstract)
|
| Feb 3: Derrick Stolee, part 2
|
| Feb 10: Andrew Ray, an introduction to algebraic graph theory (abstract)
|
| Feb 17: Stephen Hartke, interlacing of eigenvalues for subgraphs
|
| Feb 24: Christine Kelley, the spectral gap and expander graphs
|
| Mar 3: Brenda Mammenga, Disjunctive and Selectivity Rado Numbers (abstract)
|
| Fri Mar 13 at 2:30pm in 109 Avery: John Konvalina, Boolean Networks, Combinatorics, and the Fractal Nature of Life (abstract)
|
| Mar 17: No seminar, spring break.
|
| Mar 24: Travis Johnston, sorting signed permutations with cut-and-paste operations (abstract)
|
| Mar 31: Jamie Radcliffe, the sign of a permutation of a multiset
|
| Apr 7: Justin DeVries, the chromatic polynomial via homology (abstract)
|
| Apr 14: Nate Axvig, an introduction to matroids
|
| Apr 21: Cancelled so people may attend Duane Einfeld's thesis defense
|
| Apr 28: Nate Axvig, an introduction to matroids, part 2: greedy algorithm and the matroid intersection theorem
|
| Aug 26: Organization; Stephen Hartke, Two short beautiful proofs: the number of degree sequences of forests on n vertices and extending perfect matchings in the hypercube to hamiltonian cycles.
|
| Sept 2: Christine Kelley, the Hirsch conjecture and 0/1 polytopes (abstract)
|
| Sept 9: Stephen Hartke, the second short beautiful proof: extending perfect matchings in the hypercube to hamiltonian cycles.
|
| Sept 16: Brian Kell, partial cubes
|
| Sept 23: Brian Kell, partial cubes, continued.
|
| Sept 30: Nate Axvig, Some Aspects of Cycle Codes. (abstract)
|
| Fri Oct 3: Mike Ferrara will be speaking in the colloquium about Some Problems on Graph Subdivisions. (abstract)
|
| Oct 7: Nate Axvig, cycle codes, continued.
|
| Oct 14: Katie Morrison, an introduction to network coding. (abstract)
|
| Oct 21: Fall break, no seminar.
|
| Oct 28: Katie Morrison, network coding, continued.
|
| Nov 4: Jamie Radcliffe, Entropy methods for estimating the number of perfect matchings in graphs. (abstract)
|
| Nov 11: Stephen Hartke, counting perfect matchings in planar graphs.
|
| Nov 18: Derek Boeckner, higher correlation inequalities. (abstract)
|
| Nov 25: Abby Brackins, derivation of the uncertainty function. (abstract)
|
| Dec 2: Katie Haymaker, On optimal instantaneous codes: A look at Huffman coding. (abstract)
|
| Fri Dec 5: Christine Kelley will be speaking in the colloquium about algebraic constructions of codes using voltage graphs. (abstract)
|
| Dec 9: Cancelled.
|