Colloquium Schedule

Fall 2013 - Spring 2014

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. 

Fall 2012-Spring 2013

 

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.

Fall 2011-Spring 2012

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

Fall 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.

Fall 2008 - Spring 2009

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

Fall 2007 - Spring 2008

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

Fall 2011 - Spring 2012

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

Fall 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.

Fall 2008 - Spring 2009

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

Fall 2007 - Spring 2008

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

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