Historians have debated for centuries the magnitude, nature, and
impact of population movements from the borders of the Roman Empire
into its heart between the fourth and seventh centuries. In recent
years, geneticists have begun to attempt to...
In cryo-electron microscopy (cryo-EM), a microscope generates a
top view of a sample of randomly-oriented copies of a molecule. The
cryo-EM problem is to use the resulting set of noisy 2D projection
images taken at unknown directions to reconstruct...
In this talk we will present an overview of the hypermatrix
generalization of matrix algebra proposed by Mesner and
Bhattacharya in 1990. We will discuss a spectral theorem for
hypermatrices deduced from this algebra as well as connections
with...
This is intended to be a survey talk, accessible to a general
mathematical audience. The cdh topology was created by Voevodsky to
extend motivic cohomology from smooth varieties to singular
varieties, assuming resolution of singularities (for...
We use critical block sensitivity, a new complexity measure
introduced by Huynh and Nordstrom (STOC 2012) to study the
communication complexity of search problems. Our main result is a
simple proof that if S is a search problem with high
critical...
In this lecture, Quentin Skinner, Barber Beaumont Professor of
the Humanities at Queen Mary University of London, will discuss the
concept of individual freedom, arguing that the usual practice of
defining it in negative terms as “absence of...
In this talk, Jennifer Chayes, Distinguished
Scientist and Managing Director of Microsoft Research New England
and New York City, looks quite generally at some of the models we
are using to describe networks, processes we are studying on
the...
