# Academic

## Monday, April 1, 2019

### An eye for detail: Attention and eye movements at the foveal scale

Seminar | April 1 | 11:10 a.m.-12:30 p.m. | 489 Minor Hall

Dr. Martina Poletti

### Spectral Representation and Approximation of Solenoidal Fields: Fluids Seminar

Seminar | April 1 | 12-1 p.m. | 3110 Etcheverry Hall

Siavash Ameli, Ph.D. Candidate, Department of Mechanical Engineering, University of California, Berkeley

Department of Mechanical Engineering (ME)

Abstract: Wide range of fluid flow applications are incompressible. Noise in flow measurements is the main source that violates the divergence free condition for such flows. Variety of approaches has been proposed to filter noise and reconstruct data. Proper Orthogonal Decomposition, Dynamics Mode Decomposition, radial basis functions and smoothing kernels, spectral filtering by Fourier... More >

### The Role of Early School Experiences in the Development of Executive Function

Colloquium | April 1 | 12:10-1:30 p.m. | 1102 Berkeley Way West

Jennie Grammer, UCLA, Department of Education and Information Studies

Children’s Executive Function (EF) skills develop rapidly during early elementary school and play an important role in student success during the school transition period. Although these associations have been well documented, questions remain regarding the ways in which school shapes EF development, as well as the mechanisms underlying the associations between EF and academic performance. In... More >

### Combinatorics Seminar: Cluster algebras and factorization

Seminar | April 1 | 12:10-1 p.m. | 939 Evans Hall

Ana Garcia Elsener, University of Graz

Cluster algebras were introduced and studied in a series of articles by Fomin and Zelevinsky in [FZ02,FZ03,FZ07] and by Berenstein–Fomin–Zelevinsky in [BFZ05]. They admit connections to several branches of mathematics such as representation theory, geometry, and combinatorics. These algebras are defined by generators obtained recursively form an initial data (a quiver or a matrix). During... More >

### PERL Seminar: “Appointed public officials and local favoritism: Evidence from the German States”

Seminar | April 1 | 12:30-1:30 p.m. | 223 Moses Hall

Mariana Lopes, Max Planck Institute- Visiting Researcher Haas BPP

Political Economy Research Lunch:PERL is an opportunity for PhD students to present work in progress and receive valuable feedback from faculty and peers.

### String-Math Seminar: Quantum Toroidal Algebras, Screenings and 3D Theories

Seminar | April 1 | 2-3 p.m. | 402 LeConte Hall

Yegor Zenkevich, University of Milano-Bicocca

Based on the representation theory of quantum toroidal algebras we propose a generalization of the refined topological vertex formalism incorporating additional "Higgsed" vertices and lines apparently corresponding to refined Lagrangian branes. We find rich algebraic structure associated to brane diagrams incorporating the new vertices and lines. In particular, we build the screening charges... More >

### Seminar 231, Public Finance:

Seminar | April 1 | 2-4 p.m. | 597 Evans Hall

Youssef Benzarti; Alisa Tazhitdinova

Robert D. Burch Center for Tax Policy and Public Finance

Youssef Benzarti - "Do Payroll Taxes Turn Workers Into Machines?"

Alisa Tazhitdinova - "Increasing Hours Worked: Moonlighting Responses to a Large Tax Reform"

### Northern California Symplectic Geometry Seminar: Symplectic structures in derived algebraic geometry

Seminar | April 1 | 2:30-3:30 p.m. | 740 Evans Hall

Gabriele Vezzosi, University of Florence

After sketching the basics of derived algebraic geometry, I will explain how to define symplectic and lagrangian structures in this setting. A derived symplectic structure has a “shift” (or degree) that is zero for usual symplectic structures. This degree allows us a greater freedom, e.g. it leads to the fact that the derived intersection of two usual lagrangians is symplectic with a $-1$... More >

### Arithmetic Geometry and Number Theory RTG Seminar: Dwork Crystals and Related Congruences

Seminar | April 1 | 3-5 p.m. | 891 Evans Hall | Note change in location

Masha Vlasenko, IMPAN Warsaw

I will show a new, simple construction of crystals associated with toric hypersurfaces and exploit it to prove p-adic congruences for expansion coefficients of rational functions. This is joint work with Frits Beukers.

The exposition will be self-contained, but I shall explain that our ideas evolve from those of Bernard Dwork. Since he constructed an explicit Frobenius operator which does point... More >

### Differential Geometry Seminar: Collapsed Manifolds With Ricci Curvature and Local Rewinding Volume Bounded Below

Seminar | April 1 | 3:10-4 p.m. | 939 Evans Hall

Xiaochun Rong, Rutgers University

We will give a brief review of the study of collapsed Riemannian manifolds with sectional curvature bounds, and we will report some recent progress on collapsed manifolds with Ricci curvature and local rewinding volume bounded below.

### Zeyu Zheng - Non-stationary Markov processes: Approximations, simulation, and decision-making

Seminar | April 1 | 3:30-4:30 p.m. | 1174 Etcheverry Hall

Zeyu Zheng, University of California, Berkeley

Industrial Engineering & Operations Research

In many Markov modeling contexts, the system under consideration exhibits strong time-of-day effects, day-of-week effects, or seasonality effects. In fact, most real-world systems that are modeled as Markov processes exhibit such non-stationarities. Nevertheless, the great majority of the academic literature focuses on modeling and theory for Markov processes with stationary transition... More >

### Population Diversity in Aging and Metabolic Stress: Using Systems Biology to Connect Molecular Networks and Phenotypic Outcomes: Dr. Evan Williams, Institute of Molecular Systems Biology, ETH Zurich

Seminar | April 1 | 4-5 p.m. | 114 Morgan Hall

Center for Computational Biology, Nutritional Sciences and Toxicology

Abstract:

Interactions between individuals' genetic backgrounds and their environments over a lifetime drive variation in the incidence and severity of metabolic disorders and age-related co-morbidities. We have followed a highly diverse set... More >

### Northern California Symplectic Geometry Seminar: Subleading asymptotics of ECH capacities

Seminar | April 1 | 4-5 p.m. | 740 Evans Hall

Dan Cristofaro-Gardiner, UC Santa Cruz

In previous work, Hutchings, Ramos and I studied the embedded contact homology (ECH) spectrum for any closed three-manifold with a contact form, and proved a “volume identity” showing that the leading order asymptotics recover the contact volume. I will explain recent joint work that sharpens this asymptotic formula by estimating the subleading term. The main technical point needed in our... More >

### Targeted Antisense Therapeutics for Modulation of Splicing or NMD

Seminar | April 1 | 4-5 p.m. | 106 Stanley Hall

Adrian Krainer, Cold Spring Harbor Laboratory

### Pressure Cooker: Why Home Cooking Won't Solve Our Problems and What We Can Do About It.: A Talk By Sarah Bowen and Sinikka Elliott

Panel Discussion | April 1 | 4-6 p.m. | Women's Faculty Club, The Lucy Ward Stebbins Lounge

Sarah Bowen and Sinikka Elliot will discuss their new book, *Pressure Cooker*. Organized around the stories of nine families and based on extensive ethnographic research, *Pressure Cooker* takes on 7 foodie myths, showing how encouraging people to "get back into the kitchen" does not address the deeper problems in our food system.

### Seminar 291, Departmental Seminar: “Countering the Winner’s Curse: Optimal Auction Design in a Common Value Model”

Seminar | April 1 | 4-5:30 p.m. | 648 Evans Hall

Dirk Bergemann, Yale University

Co-authored with Benjamin Brooks and Stephen Morris. Joint with Economic Theory seminar.

### Learning Spaces for Experiential Learning

Colloquium | April 1 | 4-5:30 p.m. | Berkeley Way West, Room 1215, Berkeley Way West (2121 Berkeley Way, Berkeley, CA 94720)

Dr. David Ernesto Salinas Navarro, Tecnológico de Monterrey (Mexico City Region), Organizational Systems and Industrial Engineering Department

Dr. Salinas Navarro expands the conceptualization of learning spaces for higher education by integrating Experiential Learning (EL) and Challenge Based Learning (CbL). He offers a framework for shifting attention to domains of interaction in which students actively develop their specific learning outcomes. In these learning spaces, students learn-by-doing in real-world types of situations.

### Analysis and PDE Seminar: The pointwise convergence problem for the free Schrödinger equation

Seminar | April 1 | 4:10-5 p.m. | 748 Evans Hall

Ruixiang Zhang, University of Wisconsin-Madison

Carleson proposed a problem on a.e. convergence for free Schrödinger solutions as time goes to zero. Recently it got a sharp answer (up to the endpoint) in all dimensions. We will talk about the new result in dimensions $n+1$ for all $n >2$ and ideas behind it (joint work with Xiumin Du).

### Seminar 208, Microeconomic Theory (Departmental Seminar): Countering the Winner’s Curse: Optimal Auction Design in a Common Value Model

Seminar | April 1 | 4:10-5:30 p.m. | 648 Evans Hall

Dirk Bergemann, Yale