Search for tag: "physics colloquium"

Rafael de la Llave - An introduction to KAM theory II: The twist theorem

The KAM (Kolmogorov Arnold and Moser) theory studies the persistence of quasi-periodic solutions under perturbations. It started from a basic set of theorems and it has grown into a systematic…

From  Kathryn Gentilello A month ago 2 views 0  

Yin Tat Lee - Solving Linear Programs in the Current Matrix Multiplication Time

We show how to solve linear programs with accuracy epsilon in time n^{omega+o(1)} log(1/epsilon) where omega~2.3728639 is the current matrix multiplication constant. This hits a natural barrier of…

From  Kathryn Gentilello A month ago 5 views 0  

Will Perkins - Abstract polymer models, the cluster expansion, and applications

I will give two lectures introducing abstract polymer models and the cluster expansion from statistical physics. I will describe some of the original applications of these tools in statistical…

From  Kathryn Gentilello A month ago 1 views 0  

Maureen Schmitter-Edgecome - Using Technologies to Support Memory Loss and Promote Functional Independence

The world’s population is aging, with the estimated number of older individuals living with memory impairment expected to rise significantly. To help individuals remain functionally independent…

From  Kathryn Gentilello A month ago 1 views 0  

Ola Svensson - Lecture 2: Different approaches for asymmetric TSP

The traveling salesman problem is one of the most fundamental optimization problems. Given n cities and pairwise distances, it is the problem of finding a tour of minimum distance that visits each…

From  Kathryn Gentilello 2 Months ago 6 views 0  

Ola Svensson - Lecture 3: A constant-factor approximation algorithm for asymmetric TSP

The traveling salesman problem is one of the most fundamental optimization problems. Given n cities and pairwise distances, it is the problem of finding a tour of minimum distance that visits each…

From  Kathryn Gentilello 2 Months ago 11 views 0  

John Preskill - Quantum Computing and the Entanglement Frontier

The quantum laws governing atoms and other tiny objects seem to defy common sense, and information encoded in quantum systems has weird properties that baffle our feeble human minds. John Preskill…

From  Kathryn Gentilello 2 Months ago 17 views 0  

Konstantin Batygin - Planet Nine From Outer Space

At the outskirts of the solar system, beyond the orbit of Neptune, lies an expansive field of icy debris known as the Kuiper belt. The orbits of the individual asteroid-like bodies within the Kuiper…

From  Kathryn Gentilello 3 Months ago 7 views 0  

John Baez - Mathematical Mysteries of the Periodic Table

Why do atoms behave the way they do? Why do electrons form “shells,” as seen in the periodic table? Why does the first shell hold 2 electrons, the second 8, and the third 18: twice the…

From  Kathryn Gentilello 3 Months ago 10 views 0  

Kunal Talwar - Amplification Theorems for Differentially Private Machine Learning

A rigorous foundational approach to private data analysis has emerged in theoretical computer science in the last decade, with differential privacy and its close variants playing a central role. We…

From  Kathryn Gentilello 3 Months ago 15 views 0  

Fergus I.M. Craik - Aging and Memory: Attentional Resources and Cognitive Control

This talk will examine the proposition that age-related memory problems are largely attributable to declines in attentional resources and executive control. It will illustrate the arguments with…

From  Kathryn Gentilello 3 Months ago 15 views 0  

Michael Lemonick - How a Failed Astrophysics Major Became a Successful Science Writer

I knew from the time I was a very young child that I wanted to be an astronomer. The dream lasted until I got to college, where I learned to my dismay that I actually had no passion for doing what an…

From  Kathryn Gentilello 3 Months ago 9 views 0  

Zeb Rocklin - The Science of Origami

What kinds of shapes can you make by folding a sheet of paper? How strong can you make them, or how flexible? Although we've been folding paper for centuries, we're still discovering…

From  Kathryn Gentilello 4 Months ago 17 views 0  

How the Universe Made the Elements in the Periodic Table - James Sowell

The creation of the elements in the universe took billions of years and required various processes.The first few minutes of the big bang produced only hydrogen (H) and helium (He). No new elements…

From  Kathryn Gentilello 5 Months ago 26 views 0  

Steven M. Boker - Theories, Methods, and Data: A Dance and a Conversation

Three dimensions of Cattell's persons by variables by time data box are discussed in the context of three types of researchers each wanting to answer their own categorically different question.…

From  Kathryn Gentilello 5 Months ago 4 views 0  

Kathleen C. Insel - Cognitive Aging and Self-Management: Opportunities for Technology

Self-management of chronic conditions increases among older adults at the same time capacity for self-management may diminish. Addressing limitations in prospective memory through strategies…

From  Kathryn Gentilello 5 Months ago 4 views 0