Dr. Djordje Milićević, Bryn Mawr College

Friday, September 27, 2013

Mendel Hall, Room 154, 2:45pm (refreshments at 2:30pm)

**Title: Sub_Weyl subconvexity and short p-adic exponential sums**

L-functions are central objects of modern number theory, which guide phenomena ranging from distribution of prime numbers to elliptic curves. One of the principal questions about L-functions is the size of their critical values. Of particular interest are their so-called subconvex estimates, which are deeply arithmetic both in what is required for their proof and in their often spectacular consequences.

In this talk, we will present our recent subconvexity bound for the central value of a Dirichlet L-function of a character to a prime power modulus, which breaks a long-standing barrier known as the Weyl exponent. The results are obtained by developing a new general method to estimate short exponential sums involving p-adically analytic fluctuations. This new theory can be naturally seen as a p-adic analogue of the method of exponent pairs, an essential tool in a wide range of problems in classical analytic number theory. We will present the main results of our method and the key points in its development, and discuss the structural relationship between the p-adic analysis and the so-called depth aspect. This will be a self-contained colloquium talk; no prior familiarity with L-functions or p-adics will be assumed.

**Dr. Elizabeth Beazley, Haverford College**

Friday, September 13, 2013

Mendel Hall, Room 154, 3:15 pm

**Title: The Rim Hook Rule: Enumerative Geometry via Combinatorics**

The theory of quantum cohomology was initially developed in the early 1990s by physicists working in the field of superstring theory. Mathematicians then discovered applications to enumerative algebraic geometry, counting the number of rational curves of a given degree satisfying certain incidence conditions, but the impact now extends into many other aspects of alegebraic geometry, combinatorics, representation theory, number theory, and even back to physics. In this talk, we will explain a "rim hook rule" which provides an efficient way to compute products in the quantum cohomology of the Grassmannian of k planes in complex n-space. This talk will be very concrete and completely self-contained, assuming only a background in basic linear algebra.

Friday, April 12, 2013

**Title: Inverse Problems: Determining the Equation from the Solution**

Mendel Hall, Room 115, 2:30pm

Dr. Shari Moskow, Drexel University

Friday, February 1, 2013

**Title: Modeling and Interpretation of Vaccine Cross-over Clinical Trials Data**

Mendel Hall, Room 115; 2:30 pm

Scott Patterson, Ph.D Senior Director of Statistical Science | Pfizer Vaccine Clinical Research

Friday, September 28, 2012

**Title: The Turn of the Screw: The History and Optimal Design of an Archimedes Screw**

Mendel Hall, Room 154; 2:30 pm

Chris Rorres, University of Pennsylvania and Drexel University

Friday, November 9, 2012

**Title: Stories of Probabilities** **- some (perhaps) non-intuitive results in probability and geometry**

Mendel Hall, Room 154; 2:30 pm

Dr. Charles Grinstead, Swarthmore College

Friday, November 16, 2012

**Title: Unirational Parameterizations of Cubic Surfaces**

Mendel Hall, Room 154; 2:30 pm

Professor Amanda Knecht, Villanova University

Friday, November 30, 2012

**Title: Search Algorithms. **

Tom Corwin, class of '69, founder and CEO of Metron Inc.

Friday, February 11, 2012

**Title: A Two-Parameter Pareto Model for Income Distributions**

Mendel Hall, Room 115 2:30pm

Dr. Klaus Volpert, Villanova University

Friday, April 13, 2012

**Title: Mathematical modeling, transmission dynamics and control of antibiotic-resistant infections
**Mendel Hall, Room 154 2:35

Dr. Mo Yahdi, Ursinus University

Friday, February 3, 2012

**Title: Are you sure that's an ellipse? Poncelet ellipses, Blaschke products, and other mathematical short stories
**Mendel Hall, Room 154 2:35

Dr. Pam Gorkin, Bucknell University

Friday, December 9, 2011

**Title: Complexity and Chaos In Medieval Cartography**

Mendel Hall, Room 154, 2:30 pm

John Hessler, Geography & Map Division, Library of Congress

Friday, November 11, 2011

Title: Divergence of infinite series on Hecke groups of large width (with a side of Fibonacci)

Mendel Hall, Room 154, 2:30 pm

Dr. Paul Pasles, Villanova University

Friday, October 28, 2011

**Title: Rational Points on Logical Varieties over Sensible Fields
**Mendel Hall, Room 154, 2:30 pm

Dr. Amanda Knecht, Villanova UniversityFall 2010 - Spring 2011

Tuesday, April 26, 2011

**Title: Pi Mu Epsilon Talk**

Mendel Hall, Room 154, 2:30pm

Dr. Tony Rothman, Princeton University

Friday, April 15, 2011

**Title: A invitation to MAGMA**

Mendel Hall, Room 115, 2:30 - 3:30pm

Jennifer Paulus $ Amanda Knecht, Villanova University

Friday, April 1, 2011

**Title: Scaled Average Bioequivalence**

Mendel Hall, Room 115, 2:30 - 3:30pm

Scott Patterson, Pfizer University

Friday, March 25, 2011

**Title: A Tale of Two Theorems: Calibrating Mathematical Complexity**

Mendel Hall, Room 115, 2:30 - 3:30pm

Joseph Mileti, Grinnell College

Friday, March 18, 2011

**Title: TBA**

Mendel Hall, Room 115, 2:30 - 3:30pm

Matt Devos, Simon Fraser University

Friday, February 11, 2011

**A Two-Parameter Pareto Model for Income Distributions**

Mendel Hall, Room 115, 2:30 - 3:30pm

Klaus Volpert, Ph.D Villanova University

Tuesday, December 7, 2010

**ll-posed Evolution Problems**

Mendel Hall, Room 154, 2:30 - 3:30pm

Matthew Fury, Ph. Penn State University

Tuesday, November 9, 2010

**The Mathematics of Knots and Tangles
**Mendel Hall, Room 154, 2:30 - 3:30pm

Philipp Yasskin, Ph.D.

Friday, October 22, 2010

**Mathematics In Service Of Puzzle-Solving
**Mendel Hall, Room 101, 2:30 - 3:30pm

Andrew Woldar, Ph.D. Villanvoa University

Friday, September 24, 2010

**How Math Made Modern Music Mad Irrational
**Bartley Hall, Room 1001, 9:30 am

David Kung, Ph.D.

Friday, March 26, 2010

**Water, water, everywhere, but is it safe to drink?
**Mendel Hall, Room 154, 2:35pm- 4:00pm

Ben Galluzzo, Ph.D.

Friday, January 29, 2010

**A Thorough QTc Testing in Bio-Pharmaceutical Development
**Mendel Hall, Room 154, 2:35pm- 4:00pm

Scott Patterson, Ph.D.

Tuesday, December 8, 2009

**A Class of Partially Replicated Two-Level Fractional Factorial Designs
**Mendel Hall, Room 154, 2:30pm- 4:00pm

Paul Lupinacci, Ph.D.

Friday, November 13, 2009

**The Possibility of Detailed Medical Imaging of Soft tissue with Long Wavelength Radiation, Diagnosis and Therapy Concepts.
**Mendel Hall, Room 154, 2:30pm-3:30pm

David Cohoon, Ph.D.

Thursday, October 22, 2009

**Self-organization and power-law clustering in seafloor animals: the spatial ecology of mussel beds in Maine
**Mendel Hall, Room 101, 5:00pm

John Commito, Ph.D.

Tuesday, Sept 22, 2009

**The existence of elliptic periodic orbits in the smoothed Bunimovich Stadium
**Mendel Hall, Room G86, 4:00pm- 5:00pm

Sherry Teti, Ph.D.

Friday, May 1, 2009

**Diophantine geometry of Appollomian packings**

Mendel Hall, Room 154 2:30pm- 3:30pm

Peter Sarnak, Ph.D.

Friday, April 28, 2009

**Complex Functions with Cantor or connected Julia Sets**

Mendel Hall, Room 154 2:30pm- 3:30pm

Lorelei Koss, Ph.D.

Friday, April 24, 2009

**Non-Unique Factorization **

Mendel Hall, Room 154 2:30pm- 3:30

Patrick Cesarz '09

Friday, February 27th, 2009

**Making Valid Inferences in Observational Studies using Propensity Score Analysis**

Mendel Hall, Room 154 2:30pm- 3:30pm

Michael Posner, Ph.D.

Friday, February 13th, 2009

**Starlike Univalent Functions**

Mendel Hall, Room 154 2:30pm- 3:30pm

Frederick Hartmann, Ph.D.

Friday, February 6th, 2009

**Quality, Time, And Cost Relationships in Project Scheduling**

Mendel Hall, Room 154 2:30pm- 3:30pm

Bruce Pollack-Johnson, Ph.D

Friday, January 30th, 2009

**Geometric and Graph Issues in Wireless Networks**

Mendel Hall, Room 154 2:30pm- 3:30pm

Mirela Damian, Ph.D.

Tuesday, December 9th, 2008

**Letting the Cat out of the bag**

Mendel Hall, Room 154 2:35pm- 3:30pm

Timothy Feeman, Ph.D

Friday, October 31st, 2008

**New Nonparametric Tests for Equivalence**

Mendel Hall, Room 154 2:35pm- 3:30pm

Jesse Frey, Ph.D

Friday, April 4th, 2008

**Generalizing Polyhedra: Beyond Convexity**

Mendel Hall, Room G92 2:35pm- 3:30pm

Gordon Williams, Ph.D.

Friday, March 14, 2008

**Fundamentals of Magnetic Resonance Imaging**

Mendel Hall, Room 102 2:30pm-3:30pm

Joseph McGowan, Ph.D.

Friday, February 8, 2008

**What Caused the Permian Extinction**

Mendel Hall, Room G92 2:35pm-3:30pm

__Steve C. Wang__, Ph.D.

Tuesday, December 11, 2007

**Benjamin Franklin's Numbers**

Mendel Hall, Room 154 3:35pm - 4:30pm

Paul Pasles, Ph.D.

Friday, November 30, 2007

**Pricing Methods for Financial Derivatives**

Mendel Hall, Room G92 2:30 PM

Klaus Volpert, Ph.D.

Friday, November 16, 2007

TBA

Friday, October 26, 2007

**Natural Generalizations of Bernoulli Numbers**

2:30 PM

Abdul Hassen, Rowan University

Monday, October 1, 2007

**DNA Nano Structures**

Mendel Hall, Room G86, 3:00 PM

Jo Ellis-Monaghan, St. Michael's College

Friday, December 9, 2011

**Title: Complexity and Chaos In Medieval Cartography**

Mendel Hall, Room 154, 2:30 pm

John Hessler, Geography & Map Division, Library of Congress

Friday, November 11, 2011

**Title: Divergence of infinite series on Hecke groups of large width (with a side of Fibonacci**)

Mendel Hall, Room 154, 2:30 pm

Dr. PauL Pasles, Villanova University

Friday, October 28, 2011

**Title: Rational Points on Logical Varieties over Sensible Fields
**Mendel Hall, Room 154, 2:30 pm

Dr. Amanda Knecht, Villanova University

Tuesday, April 26, 2011

**Title: Pi Mu Epsilon Talk**

Mendel Hall, Room 154, 2:30pm

Dr. Tony Rothman, Princeton University

Friday, April 15, 2011

**Title: A invitation to MAGMA**

Mendel Hall, Room 115, 2:30 - 3:30pm

Jennifer Paulus $ Amanda Knecht, Villanova University

Friday, April 1, 2011

**Title: Scaled Average Bioequivalence**

Mendel Hall, Room 115, 2:30 - 3:30pm

Scott Patterson, Pfizer University

Friday, March 25, 2011

**Title: A Tale of Two Theorems: Calibrating Mathematical Complexity**

Mendel Hall, Room 115, 2:30 - 3:30pm

Joseph Mileti, Grinnell College

Friday, March 18, 2011

**Title: TBA**

Mendel Hall, Room 115, 2:30 - 3:30pm

Matt Devos, Simon Fraser University

Friday, February 11, 2011

**A Two-Parameter Pareto Model for Income Distributions**

Mendel Hall, Room 115, 2:30 - 3:30pm

Klaus Volpert, Ph.D Villanova University

Tuesday, December 7, 2010

**ll-posed Evolution Problems**

Mendel Hall, Room 154, 2:30 - 3:30pm

Matthew Fury, Ph. Penn State University

Tuesday, November 9, 2010

**The Mathematics of Knots and Tangles
**Mendel Hall, Room 154, 2:30 - 3:30pm

Philipp Yasskin, Ph.D.

Friday, October 22, 2010

**Mathematics In Service Of Puzzle-Solving
**Mendel Hall, Room 101, 2:30 - 3:30pm

Andrew Woldar, Ph.D. Villanvoa University

Friday, September 24, 2010

**How Math Made Modern Music Mad Irrational
**Bartley Hall, Room 1001, 9:30 am

David Kung, Ph.D.

Friday, March 26, 2010

**Water, water, everywhere, but is it safe to drink?
**Mendel Hall, Room 154, 2:35pm- 4:00pm

Ben Galluzzo, Ph.D.

Friday, January 29, 2010

**A Thorough QTc Testing in Bio-Pharmaceutical Development
**Mendel Hall, Room 154, 2:35pm- 4:00pm

Scott Patterson, Ph.D.

Tuesday, December 8, 2009

**A Class of Partially Replicated Two-Level Fractional Factorial Designs
**Mendel Hall, Room 154, 2:30pm- 4:00pm

Paul Lupinacci, Ph.D.

Friday, November 13, 2009

**The Possibility of Detailed Medical Imaging of Soft tissue with Long Wavelength Radiation, Diagnosis and Therapy Concepts.
**Mendel Hall, Room 154, 2:30pm-3:30pm

David Cohoon, Ph.D.

Thursday, October 22, 2009

**Self-organization and power-law clustering in seafloor animals: the spatial ecology of mussel beds in Maine
**Mendel Hall, Room 101, 5:00pm

John Commito, Ph.D.

Tuesday, Sept 22, 2009

**The existence of elliptic periodic orbits in the smoothed Bunimovich Stadium
**Mendel Hall, Room G86, 4:00pm- 5:00pm

Sherry Teti, Ph.D.

Friday, May 1, 2009

**Diophantine geometry of Appollomian packings**

Mendel Hall, Room 154 2:30pm- 3:30pm

Peter Sarnak, Ph.D.

Friday, April 28, 2009

**Complex Functions with Cantor or connected Julia Sets**

Mendel Hall, Room 154 2:30pm- 3:30pm

Lorelei Koss, Ph.D.

Friday, April 24, 2009

**Non-Unique Factorization **

Mendel Hall, Room 154 2:30pm- 3:30

Patrick Cesarz '09

Friday, February 27th, 2009

**Making Valid Inferences in Observational Studies using Propensity Score Analysis**

Mendel Hall, Room 154 2:30pm- 3:30pm

Michael Posner, Ph.D.

Friday, February 13th, 2009

**Starlike Univalent Functions**

Mendel Hall, Room 154 2:30pm- 3:30pm

Frederick Hartmann, Ph.D.

Friday, February 6th, 2009

**Quality, Time, And Cost Relationships in Project Scheduling**

Mendel Hall, Room 154 2:30pm- 3:30pm

Bruce Pollack-Johnson, Ph.D

Friday, January 30th, 2009

**Geometric and Graph Issues in Wireless Networks**

Mendel Hall, Room 154 2:30pm- 3:30pm

Mirela Damian, Ph.D.

Tuesday, December 9th, 2008

**Letting the Cat out of the bag**

Mendel Hall, Room 154 2:35pm- 3:30pm

Timothy Feeman, Ph.D

Friday, October 31st, 2008

**New Nonparametric Tests for Equivalence**

Mendel Hall, Room 154 2:35pm- 3:30pm

Jesse Frey, Ph.D

Friday, April 4th, 2008

**Generalizing Polyhedra: Beyond Convexity**

Mendel Hall, Room G92 2:35pm- 3:30pm

Gordon Williams, Ph.D.

Friday, March 14, 2008

**Fundamentals of Magnetic Resonance Imaging**

Mendel Hall, Room 102 2:30pm-3:30pm

Joseph McGowan, Ph.D.

Friday, February 8, 2008

**What Caused the Permian Extinction**

Mendel Hall, Room G92 2:35pm-3:30pm

__Steve C. Wang__, Ph.D.

Tuesday, December 11, 2007

**Benjamin Franklin's Numbers**

Mendel Hall, Room 154 3:35pm - 4:30pm

Paul Pasles, Ph.D.

Friday, November 30, 2007

**Pricing Methods for Financial Derivatives**

Mendel Hall, Room G92 2:30 PM

Klaus Volpert, Ph.D.

Friday, November 16, 2007

TBA

Friday, October 26, 2007

**Natural Generalizations of Bernoulli Numbers**

2:30 PM

Abdul Hassen, Rowan University

Monday, October 1, 2007

**DNA Nano Structures**

Mendel Hall, Room G86, 3:00 PM

Jo Ellis-Monaghan, St. Michael's College