| September 2011 | Megan Kerr | Nonnegatively curved homogeneous spaces: how is algebra controlling geometry? |
| October 2011 | Moon Duchin | Counting Problems |
| October 2011 | Andrew Schultz | A $q$-analog of Fleck's congruence |
| October 2011 | Alex Diesl | Strongly Clean Matrices |
| November 2011 | Karen Lange | Searching for simple integer parts |
| November 2011 | Caroline Klivans | The Space of Phylogenetic Trees |
| September 2010 | Andrew Schultz | Algebraic $K$-theory and Quadratic Reciprocity |
| October 2010 | David Mazur | Error-correcting codes: what Hamming wrought | November 2010 | Jonathan Tannenhauser | Entropy, Strings and Partitions of Integers |
| November 2010 | Charles Bu | Math Education in China |
| November 2010 | Ismar Volic | The fundamental theorem of finite type knot invariants |
| November 2010 | Catherine Roberts | An Equation Runs Through It: River Rafting in the Grand Canyon |
| March 2011 | Allison Pacelli | Algebraic Number Theory: An Ideal Subject |
| March 2011 | Thomas Fleming | Milnor Numbers and Clasper Surgery: How Mathematicians Study Stretchy Strings |
| September 21, 2009 | Steven Miller | Pythagoras at the Bat: an Introduction to Statistics and Mathematical Modelling |
| October 20, 2009 | Chelsea Walton | Noncommutative Geometry?! |
| November 4, 2009 | Jillian Mcleod | Partition Regular Matrices from a Linear Algebraic Perspective |
| November 13, 2009 | Francis Su | Voting in Agreeable Societies |
| September 23, 2008 | Karen Parshall | Internationalization of Mathematics |
| October 21, 2008 | Kathryn Leonard | The Terminator's eyeballs |
| November 4, 2008 | Sol Friedberg | Euler products and twisted Euler products |
| November 13, 2008 | Dev Sinha | Fixed points, from fractals to your coffee |
| December 2, 2008 | John McCleary | The square-peg problem |
| March 10, 2009 | Pascal Lambrechts | The Poincaré conjecture and the shape of the universe |
| March 16, 2009 | Mark Kayll | Integrals and graph theory |
| April 14, 2009 | Joseph Mileti | Rainbow problem |
| October 2, 2007 | Jill Pipher, Brown Univrersity | Public key cryptography, lattices and NTRU |
| November 5, 2007 | Ben Brubaker, MIT | Rethinking Riemann's zeta function |
| February 12, 2008 | Bob Devaney, Boston University | The Mandelbrot set and Fibonacci sequence |
| April 1, 2008 | Brian Munson, Harvard University | Two things about the linking number |
| April 22, 2008 | Seth Sullivant, Harvard University | How secure is your data? |
| September 12 | Prof. Oscar Fernandez | Hamiltonizing Nonholonomic Mechanical Systems |
| September 19 | Melinda Lanius | Universal cycles for unordered combinatorial objects |
| September 26 | Cornelia Mihaila | Multidimensional continued fractions |
| October 17 | Divya Gopinath | Combinatorics and the generalized Fibonacci numbers |
| October 24 | Naomi Takaki | The Special Theory of Relativity |
| October 31 | Prof. Karen Lange | Finding Paths through Trees |
| November 7 | Kristen Chun | A derivation of the Michaelis-Menten equation |
| November 14 | Various Students | Panel on summer math programs |
| November 28 | Mimi Moncada | The Peano Curve |
| December 5 | Kristin Liska | Game theory and the Nash equilibrium |
| January 31 | Jonathan Tannenhauser | Computing $\pi$ with Colliding Balls |
| February 7 | Various students | Solutions to the 2010 Putnam Exam |
| February 14 | Alex Gendreau | Exploring the Needleman-Wunsch Algorithm and the Polytope Propagation Algorithm |
| February 22 | Various students | Solutions to the 2010 Putnam Exam, Part II |
| February 28 | Andrew Schultz | Math Origami Workshop |
| March 7 | Liz Ferme | Disrupting Terrorist Networks |
| March 14 | No seminar! | |
| March 28 | Katelin Snow | Group Theory and Chemistry: Molecular Symmetry and its applications |
| April 4 | Kelly Walters | Restricted Partition Functions of Integers |
| April 11 | Josh Jordan | Math for fun and profit at athenahealth |
| April 19 | Gabriela Perez Villalobos | Eulerian numbers |
| April 25 | Amanda Curtis and Jane Rieck | Visualizing Arithmetic |
| September 13 | Andrew Schultz, faculty | An irrational quest |
| September 20 | Amanda Curtis '11 | Minimal surfaces and planar harmonic mappings |
| September 27 | Melinda Lanius '12 | Explorations in Tessellations |
| October 4 | Brian Munson, faculty | Minimizing distances using flux |
| October 12 | Various students | Panel on summer math programs |
| October 18 | Cornelia Mihaila '12 | Existence of Solutions to the Modified Sylvester Equation |
| October 25 | Maddy Prenner '11 | Cryptanalysis of STR-KAP |
| November 1 | Nora Evans '11 | Google Page Rank Algorithm |
| November 8 | Anthea Cheung '12 | Euler Characteristic and the Platonic Solids |
| November 15 | Tanen Clark '11 and Rebecca Graber '11 |
To Infinity and Beyond: Constructing the Real Projective Plane |
| November 29 | Jane Rieck '11 | Computability Theory |
| February 5 | Megan Kerr, faculty | Straightedge and compass constructions |
| February 19 | Lisa Abraham '10 and Geraldine Ng '10 | Mathematics and Finance |
| March 12 | Margarita Miranda '10 | The Poincare Conjecture |
| March 19 | Caitlin Danis '10 and Cecilia Flatley '10 | Mathematics and Juggling |
| April 13 | Zoe Xiao '10 | Continued Fractions |
| April 16 | Lisa Yang '10 | TBD |
| April 23 | Kate Donahue '12 | TBD |
| April 30 | Amanda Curtis '11 | TBD |
| September 21 | Jizhou Wang '10 | Markov chains |
| October 5 | Alex Gendreau '12 | Directed strongly regular graphs |
| October 19 | Professor Alex Diesl | Perfect numbers |
| October 26 | Amanda Curtis '11 | Quotients of polynomial rings |
| November 2 | Margaret Ma '10 | Sphere packing |
| November 9 | Kelly Pendergast and Vanessa Zhang | Fractals |
| November 16 | Anna Loparev | Automata theory |
| November 23 | cancelled | cancelled |
| November 30 | Soumya Srinagesh '10 | TBD |
| December 7 | Katie Poon '10 and Sue He '10 | TBD |
| February 9 | Stanley Chang, Professor | Markov chains |
| February 23 | Caitlin Leverson '10 | Delta Sets of Numerical Monoids |
| March 2 | Bridget Tenner | Combinatorics and tilings |
| March 9 | Erika Kahn '09 | Topics in Cantorian Set Theory |
| March 16 | Steph Xiang '09 and Katie Sang '09 | The Golden Ratio |
| March 30 | Swini Garimella '09 | The Busy Beaver Function |
| April 6 | Subin Park '11 | The Square Pyramid Puzzle |
| April 13 | Hae Jin Chang '10 | Magic Squares |
| April 21 | Sha Lu '10 | Network Optimization |
| April 27 | Amanda Curtis '11 | Bernoulli Numbers |
| May 4 | Jaree Pinthong '09 & Lin Xu '09 | Shortest Path Algorithms |
| September 8 | Ismar Volic, Professor | Some convergence of series proofs |
| September 15 | Stanley Chang, Professor | Famous unsolved problems in mathematics |
| September 22 | Ashley Hartman '09 | Applications of game theory |
| September 29 | Voula Collins '09 | The Euler characteristic |
| October 6 | Natalya Kopyra '09 | The Josephus problem |
| October 20 | Ghassan Sarkis (Pomona) | p-adics: a primer |
| October 27 | Bianca Thompson '09 | The axiom of choice |
| November 3 | Amanda Curtis '11 | Hyperbolic space |
| November 10 | Jen Pawson '09 | Fibonacci numbers: an unexpected result |
| November 17 | Andrea Johnston '09 | Integer programming and chemistry |
| December 1 | Kate Sorenson '09 & Kristin Jochems '09 | RSA cryptosystems |
| February 4 | Ismar Volic, Professor | An introduction to knots, Part I |
| Februrary 11 | Ismar Volic, Professor | An introduction to knots, Part II |
| February 25 | Katie Kinnaird '08 | Random walks and tissue engineering |
| March 3 | Stanley Chang, Professor | Classification of closed surfaces |
| March 10 | Sarah LaFrance '08 | Conway's game of life |
| March 17 | Amanda Curtis '11 | Linear algebra, disease spread and DNA |
| March 31 | Caitlin Leverson '10 & Fran Zeller '10 | Pseudorandomness in primes |
| April 7 | Caitlin Leverson '10 & Fran Zeller '10 | Primes in arithmetic progression |
| April 22 | Caitlin Vaccaro '08 | On lambda-permutations of infinite series |
| April 28 | Voula Collins '09 | An order to the Baumslag-Solitar groups |
| May 5 | Rebecca Rothkopf '09 | Mathematics of computer vision |