# Academic

## Monday, September 18, 2017

### Fall 2017 Architecture Sustainability Colloquium

Colloquium | August 25
–
December 1,
2017 *every day* |
112 Wurster Hall

College of Environmental Design

FRIDAYS - AUG 25 through DEC 1. CHECK THE SCHEDULE FOR SPEAKERS. Bay Area Leaders discuss topics in sustainability.

### Combinatorics Seminar: The geometry of gaussoids

Seminar | September 18 | 12-1 p.m. | 939 Evans Hall

Bernd Sturmfels, University of California, Berkeley

Gaussoids offer a new link between combinatorics, statistics and algebraic geometry. Introduced by Lnenicka and Matus in 2007, their axioms describe conditional independence for Gaussian random variables. This lecture introduces gaussoids to an audience familiar with matroids. The role of the Grassmannian for matroids is now played by a projection of the Lagrangian Grassmannian. We discuss the... More >

### String-Math Seminar: Koszul duality patterns in quantum field theory.

Seminar | September 18 | 2-3 p.m. | 402 LeConte Hall

Tudor Dimofte, UC Davis

"Koszul duality" is a fundamental idea spanning several branches of mathematics, with origins in representation theory and rational homotopy theory. In its simplest incarnation, it relates pairs of algebras (such as symmetric and exterior algebras) that have equivalent categories of representations. Koszul duality also turns out to play a fundamental role in physics, governing the structure of... More >

### Probability Student Seminar: MCMC and Mixing of Markov Chains

Seminar | September 18 | 2-3 p.m. | 891 Evans Hall

Nick Bhattacharya, UC Berkeley

We will first discuss the problem of sampling from a given distribution on a graph. We then discuss a more problem - given a set of configurations on the vertices of a graph (for example colorings), how do we sample from that? These problems are addressed by the so-called Glauber Dynamics and the Metropolis Algorithm.

Second, we will give some basic results relating mixing times, total variation... More >

### Creating Psychological Profiles from People’s Digital Footprints: Michal Kosinski, Assistant Professor, Organizational Behavior, Graduate School of Business, Stanford University

Presentation | September 18 | 2-3:30 p.m. | 820 Barrows Hall

Michal Kosinski, Assistant Professor, Organizational Behavior, Graduate School of Business, Stanford University

Social Science Matrix, Center on Economy and Morality, a Matrix Affiliate

Dr. Michal Kosinski is a psychologist and data scientist. In his talk, he will discuss his research showing that digital records of behavior, such as samples of text, Tweets, Facebook Likes, or web-browsing logs, can be used to accurately measure a wide range of traits, including personality, intelligence, and political views.

### Seminar 211, Economic History: Railroads and the Rural to Urban Transition: Evidence from 19th Century Argentina

Seminar | September 18 | 2-4 p.m. | 597 Evans Hall

### Seminar 231, Public Finance: No Seminar

Seminar | September 18 | 2-3:30 p.m. | 648 Evans Hall | Canceled

### Probabilistic Operator Algebra seminar: Twisted canonical anti-commutation relations and twisted independence

Seminar | September 18 | 3-5 p.m. | 736 Evans Hall

Naofumi Muraki, Iwate Prefectural University

We will construct a one-parameter deformation of tensor product ( = twisted product) for non-commutative probability spaces, and show the existence of the associated universal calculation rule ( = twisted independence) for mixed moments of non-commutative random variables. The construction was inspired from the twisted canonical anti-commutation relations of W. Pusz.

### Arithmetic Geometry and Number Theory RTG Seminar: “The cuspidal subgroup, bigly”

Seminar | September 18 | 3:10-5 p.m. | 891 Evans Hall

Kenneth A. Ribet, University of California, Berkeley

Let $X$ be the modular curve $X_0(N)$, where $N$ is a positive integer. The $cusps$ on $X$ are the points of $X$ “at infinity.'' According to the theorem of Manin–Drinfeld, the group of degree-0 cuspidal divisors on $X$ maps to a finite subgroup of the Jacobian of $X$. This group is the $cuspidal$ $subgroup$ $C$ of the Jacobian.

There is a general feeling that $C$ ought to be big in various... More >

### Matteo Basei - The coordination of centralised and distributed generation

Seminar | September 18 | 3:30-5 p.m. | 3108 Etcheverry Hall

Matteo Basei, UC Berkeley

Industrial Engineering & Operations Research

Abstract. This paper analyses the interaction between centralised carbon-emissive technologies and distributed intermittent non-emissive technologies. In our model, there is a representative consumer who can satisfy her electricity demand by investing in distributed generation (solar panels) and by buying power from a centralised firm at a price the firm sets. Distributed generation is... More >

### Seminar 208, Microeconomic theory

Seminar | September 18 | 4-5:30 p.m. | 639 Evans Hall

Laura Doval, Caltech

### Design Field Notes: Thomas Maiorana

Seminar | September 18 | 4-5 p.m. | 220 Jacobs Hall

Jacobs Institute for Design Innovation

Designer, artist, and UC Davis assistant professor Thomas Maiorana will speak as part of Design Field Notes, a pop-up series that brings a design practitioner to a Jacobs Hall teaching studio to share ideas, projects, and practices.

### Student Algebraic Geometry Seminar: Equivariant localization for periodic cyclic homology

Seminar | September 18 | 4-5 p.m. | 748 Evans Hall

Harrison Chen, UC Berkeley

This talk will be mostly introductory. We will define the cyclic homology of perfect sheaves on a stack from a categorical and geometric standpoint via circle actions on categories and derived loop spaces. We will review equivariant localization in broad strokes, state it for periodic cyclic homology of smooth toric quotient stacks and give an idea of the proof. Time permitting, I will discuss... More >

### Seminar 271, Development: "Teacher Wages and the Recruitment of Talent in Rural Peru"

Seminar | September 18 | 4-5:30 p.m. | 648 Evans Hall

Gianmarco Leon, Pompeu Fabra

### Diversified Scholars in Diversified Farming: Broadening Perspectives in the Field

Panel Discussion | September 18 | 4-5:15 p.m. | Morgan Hall, Morgan Lounge

Center for Diversified Farming Systems

We are kicking off the 2017/18 DFS Seminar Series with a panel discussion that aims to broaden what we think of when we say "diversification" in farming systems. The frame and practice of diversity builds ecological and economic resilience at the field, farm, and landscape scales. This panel will explore the role, challenges, and opportunities for a diversity of perspectives and approaches in DFS... More >

### Pushkinian Anomalies in Lolita, Pnin, and Pale Fire: Toward an Ethics of Creativity

Colloquium | September 18 | 4-6 p.m. | B-4 Dwinelle Hall

Stephen Blackwell, Professor, Russian Program, The University of Tennessee, Knoxville

Institute of Slavic, East European, and Eurasian Studies (ISEEES), Department of Slavic Languages and Literatures

The third lecture in the Slavic Graduate Colloquium Fall 2017 series.

### Fake News and Information Leaks: Constructing Documentary Authority in Late Imperial China

Colloquium | September 18 | 4-6 p.m. | 180 Doe Library

Nicolas Tackett, History, UC Berkeley

Emily Mokros, CCS Postdoctoral Fellow, 2017-2018

Center for Chinese Studies (CCS)

In seventeenth-century China, the Qing dynasty inherited a troubled information order. Within the bureaucracy, lengthy procedural correspondence buried urgent messages and covert networks troubled official hierarchies. Beyond the reach of the state, gossip and rumor endangered the stability of the new dynasty. This paper analyzes the negotiation of information scandals in the first century of... More >

### Analysis and PDE Seminar: Resolvent estimates and wave asymptotics for manifolds with cylindrical ends

Seminar | September 18 | 4:10-5 p.m. | 740 Evans Hall

Kiril Datchev, Purdue University

Wave oscillation and decay rates on a manifold \(M\) are well known to be related to the geometry of \(M\) and to dynamical properties of its geodesic flow. When \(M\) is a closed system, such as a bounded Euclidean domain or a compact manifold, there is no decay and the connection is made via the eigenvalues of the Laplacian. When \(M\) is an open system, such as the complement of a bounded... More >

### The Creative Arts in Bangladesh: An Evening with Anisul Hoque

Reading - Nonfiction | September 18 | 5-7 p.m. | Stephens Hall, 10 (ISAS Conf. Room)

Anisul Hoque, Writer, poet, playwright, and columnist

Sanchita B. Saxena, Director, Subir and Malini Chowdhury Center for Bangladesh Studies; Executive Director, Institute for South Asia Studies

The Subir and Malini Chowdhury Center for Bangladesh Studies, Institute for South Asia Studies

An evening with writer, poet, playwright, and columnist from Bangladesh, Anisul Hoque.

### SLAM: Publishing in Top Journals: Secrets of the Insiders

Seminar | September 18 | 5:30-6:30 p.m. | 106 Stanley Hall

Dr. Marcia McNutt, President of the National Academy of Sciences

QB3 - California Institute for Quantitative Biosciences

Marcia McNutt (B.A. in physics, Colorado College; Ph.D. in earth sciences, Scripps Institution of Oceanography) is a geophysicist and the 22nd president of the National Academy of Sciences. From 2013 to 2016, she was editor-in-chief of Science journals. McNutt was director of the U.S. Geological Survey from 2009 to 2013, during which time USGS responded to a number of major disasters, including... More >