# Courses

# Course Listing

## Computing with Python for Scientists and Engineers

**APMTH 10**

2021 Fall

**Efthimios Kaxiras, Logan McCarty, Georgios Neofotistos**

Tuesday, Thursday

10:30am to 11:45am

This course is a systematic introduction to computing (with Python and Jupyter notebooks) for science and engineering applications. Examples of applications are drawn from a broad range of disciplines, including physical, financial, and biological-epedemiological problems. The course consists of two Modules: 1. Basics: essential elements of computing, including types of variables, lists, arrays, basic recursive operations (for, while loops, if statement), definition of functions, file handling and simple plots, numerical differentiation, fitting of curves and error analysis, plotting and visualization tools in higher dimensions. 2. Advanced: root finding, series expansions, numerical integration, solving simple ordinary and partial differential equations, use of random numbers for sampling and simulations, such as Monte Carlo integration and random walks. Course work consists of attending lectures and labs, weekly homework assignments, a mid-term project and a final project; while work is developed collaboratively, coding assignments are submitted individually.

## Solving and Optimizing

**APMTH 22A**

2021 Fall

**Steven Gortler**

Monday, Wednesday, Friday

11:15am to 12:30pm

This course covers a combination of linear algebra and multivariate calculus with an eye towards solving systems of equations and optimization problems. Students will learn how to prove some key results, and will also implement these ideas with code.Linear algebra: matrices, vector spaces, bases and dimension, inner products, least squares problems, eigenvalues, eigenvectors, singular values, singular vectors.Multivariate calculus: partial differentiation, gradient and Hessian, critical points, Lagrange Multipliers.

## Integrating and Approximating

**APMTH 22B**

2022 Spring

**Dina Obeid**

Monday, Wednesday, Friday

3:00pm to 4:15pm

Multivariable and vector calculus, supplemented with numerical methods. Multivariate calculus: multiple integration, functions of two or three variables, approximating functions. Parameterized curves, line and surface integrals. Vector calculus: gradient, divergence and curl, Green’s, divergence theorems. Complex numbers. Select differential equations topics.

## Introduction to Applied Mathematics

**APMTH 50**

2022 Spring

**Cengiz Pehlevan**

Monday, Wednesday, Friday

12:00pm to 1:15pm

This course provides an introduction to the problems and issues of applied mathematics, focusing on areas where mathematical ideas have had a major impact on diverse fields of human inquiry. The course is organized around two-week topics drawn from a variety of fields, and involves reading classic mathematical papers in each topic. The course also provides an introduction to mathematical modeling and programming.

## Supervised Reading and Research

**APMTH 91R**

2021 Fall

**Margo Levine, Sarah Iams**

Supervised reading or research on topics not covered by regular courses. For AM concentrators, work may be supervised by faculty in other departments. For non-concentrators, work must be supervised by an AM faculty member. Students must receive the approval of an (Associate) Director of Undergraduate Studies and obtain their signature before submitting AM91r forms.

## Supervised Reading and Research

**APMTH 91R**

2022 Spring

**Margo Levine, Sarah Iams**

Supervised reading or research on topics not covered by regular courses. For AM concentrators, work may be supervised by faculty in other departments. For non-concentrators, work must be supervised by an AM faculty member. Students must receive the approval of an (Associate) Director of Undergraduate Studies and obtain their signature before submitting AM91r forms.

## Thesis Research

**APMTH 99R**

2021 Fall

**Margo Levine, Sarah Iams**

Provides an opportunity for students to engage in preparatory research and the writing of a senior thesis. Graded on a SAT/UNS basis as recommended by the thesis supervisor. The thesis is evaluated by the supervisor and by one additional reader.

## Thesis Research

**APMTH 99R**

2022 Spring

**Margo Levine, Sarah Iams**

Provides an opportunity for students to engage in preparatory research and the writing of a senior thesis. Graded on a SAT/UNS basis as recommended by the thesis supervisor. The thesis is evaluated by the supervisor and by one additional reader.

## Statistical Inference for Scientists and Engineers

**APMTH 101**

2021 Fall

**Jeffrey Paten**

Monday, Wednesday

12:45pm to 2:00pm

Introductory statistical methods for students in the applied sciences and engineering. Random variables and probability distributions; the concept of random sampling, including random samples, statistics, and sampling distributions; the Central Limit Theorem; parameter estimation; confidence intervals; hypothesis testing; simple linear regression; and multiple linear regression. Introduction to more advanced techniques as time permits.

## Complex and Fourier Analysis with Applications to Science and Engineering

**APMTH 104**

2021 Fall

**Ariel Amir**

Monday, Wednesday

4:30pm to 5:45pm

Complex analysis: complex numbers, functions, mappings, Laurent series, differentiation, integration, contour integration and residue theory, conformal mappings. Fourier Analysis: orthogonality, Fourier Series, Fourier transforms, Applications to Partial Differential Equations. Signal processing: Nyquist sampling theorem, Fast Fourier Transform.

## Ordinary and Partial Differential Equations

**APMTH 105**

2022 Spring

**Zhigang Suo**

Monday, Wednesday

9:00am to 10:15am

Ordinary differential equations: power series solutions; special functions; eigenfunction expansions. Elementary partial differential equations: separation of variables and series solutions; diffusion, wave and Laplace equations. Brief introduction to nonlinear dynamical systems and to numerical methods.

## Graph Theory and Combinatorics

**APMTH 107**

2022 Spring

**Leslie Valiant**

Tuesday, Thursday

9:00am to 10:15am

Topics in combinatorial mathematics that find frequent application in computer science, engineering, and general applied mathematics. Course focuses on graph theory on one hand, and enumeration on the other. Specific topics include graph matching and graph coloring, generating functions and recurrence relations, combinatorial algorithms, and discrete probability. Emphasis on problem solving and proofs.

## Nonlinear Dynamical Systems

**APMTH 108**

2022 Spring

**Sarah Iams**

Monday, Wednesday, Friday

1:30pm to 2:45pm

An introduction to nonlinear dynamical phenomena, focused on identifying the long term behavior of systems described by ordinary differential equations. The emphasis is on stability and parameter dependence (bifurcations). Other topics include: chaos; routes to chaos and universality; maps; strange attractors; fractals. Techniques for analyzing nonlinear systems are introduced with applications to physical, chemical, and biological systems such as forced oscillators, chaotic reactions, and population dynamics.

## Introduction to Scientific Computing

**APMTH 111**

2021 Fall

**Dina Obeid**

Monday, Wednesday

1:30pm to 2:45pm

Many science and engineering problems don’t have simple analytical solutions or even accurate analytical approximations. Scientific computing can address certain of these problems successfully, providing unique insight. This course introduces some of the widely used techniques in scientific computing through examples chosen from physics, chemistry, biology, computer science and other fields. The purpose of the course is to introduce methods that are useful in applications and research and to give the students hands-on experience with these methods. The main programming language will be Python.

## Mathematical Modeling

**APMTH 115**

2022 Spring

**Zhiming Kuang**

Tuesday, Thursday

12:00pm to 1:15pm

Abstracting the essential components and mechanisms from a natural system to produce a mathematical model, which can be analyzed with a variety of formal mathematical methods, is perhaps the most important, but least understood, task in applied mathematics. This course approaches a number of problems without the prejudice of trying to apply a particular method of solution. Topics drawn from biology, economics, engineering, physical and social sciences.

## Applied Linear Algebra and Big Data

**APMTH 120**

2022 Spring

**Eli Tziperman**

Tuesday, Thursday

1:30pm to 2:45pm

Topics in linear algebra which arise frequently in applications, especially in the analysis of large data sets: linear equations, eigenvalue problems, linear differential equations, principal component analysis, singular value decomposition, data mining methods including frequent pattern analysis, clustering, classification, and machine learning, including neural networks and random forests. Examples will be given from physical sciences, biology, climate, commerce, internet, image processing and more.

## Introduction to Optimization: Models and Methods

**APMTH 121**

2021 Fall

**Margo Levine**

Tuesday, Thursday

9:00am to 10:15am

Introduction to basic mathematical ideas and computational methods for solving deterministic optimization problems. Topics covered: linear programming, integer programming, branch-and-bound, branch-and-cut. Emphasis on modeling. Examples from business, society, engineering, sports, e-commerce. Exercises in AMPL, complemented by Mathematica or Matlab.

## Convex Optimization and Its Applications

**APMTH 122**

2022 Spring

**Yiling Chen**

Tuesday, Thursday

9:45am to 11:00am

This course focuses on recognizing, formulating, and solving convex optimization problems that arise in applications. We will introduce basic convex analysis, discuss convex optimization theory, introduce tools and methods for solving convex optimization problems, and touch on some advanced topics. We will explore all these in the context of applications. The objective is to give students the theoretical training to recognize and formulate convex optimization problems and provide students with the tools and methods to solve the problems in their own applications of interest.

## Physical Mathematics I

**APMTH 201**

2021 Fall

**Michael P. Brenner**

Monday, Wednesday, Friday

9:00am to 10:15am

Introduction to methods for developing accurate approximate solutions for problems in the sciences that cannot be solved exactly, and integration with numerical methods and solutions. Topics include: dimensional analysis, algebraic equations, complex analysis, perturbation theory, matched asymptotic expansions, approximate solution of integrals.

## Introduction to Disordered Systems and Stochastic Processes

**APMTH 203**

2021 Fall

**Ariel Amir**

Tuesday, Thursday

10:30am to 11:45am

The course will familiarize the students with various applications of probability theory, stochastic modeling and random processes, using examples from various disciplines, including physics, biology and economics.

## Advanced Scientific Computing: Numerical Methods

**APMTH 205**

2021 Fall

**Christopher Rycroft**

Monday, Wednesday

11:15am to 12:30pm

An examination of the mathematical foundations of a range of well-established numerical algorithms, exploring their use through practical examples drawn from a range of scientific and engineering disciplines. Emphasizes theory and numerical analysis to elucidate the concepts that underpin each algorithm. There will be a significant programming component. Students will be expected to implement a range of numerical methods through individual and group-based project work to get hands-on experience with modern scientific computing.

## Advanced Scientific Computing: Stochastic Methods for Data Analysis, Inference and Optimization

**APMTH 207**

2021 Fall

**Weiwei Pan**

Tuesday, Thursday

9:45am to 11:00am

Develops skills for computational research with focus on stochastic approaches, emphasizing implementation and examples. Stochastic methods make it feasible to tackle very diverse problems when the solution space is too large to explore systematically, or when microscopic rules are known, but not the macroscopic behavior of a complex system. Methods will be illustrated with examples from a wide variety of fields, like biology, finance, and physics. This class follows a "flipped-classroom" format; students are required to watch the lecture videos and study new materials prior to each class meeting (including the first class meeting).

## Advanced Scientific Computing: Stochastic Methods for Data Analysis, Inference and Optimization

**APMTH 207**

2021 Fall

**Weiwei Pan**

Tuesday, Thursday

2:15pm to 3:30pm

Develops skills for computational research with focus on stochastic approaches, emphasizing implementation and examples. Stochastic methods make it feasible to tackle very diverse problems when the solution space is too large to explore systematically, or when microscopic rules are known, but not the macroscopic behavior of a complex system. Methods will be illustrated with examples from a wide variety of fields, like biology, finance, and physics. This class follows a "flipped-classroom" format; students are required to watch the lecture videos and study new materials prior to each class meeting (including the first class meeting).

## Models, Algorithms and Data

**APMTH 211**

2021 Fall

**Petros Koumoutsakos**

Tuesday, Thursday

12:45pm to 2:00pm

The class presents fundamental computing concepts bridging models algorithms and data. The course will present a unifying approach to stochastic methods for modeling, search, optimization and data driven uncertainty quantification. Class projects will emphasize the steps necessary to transfer algorithms to software in multi- and many-core computer architectures.

## Inverse Problems in Science and Engineering

**APMTH 216**

2022 Spring

**Michael P. Brenner**

Monday, Wednesday, Friday

9:00am to 10:15am

Many problems in science and engineering are inverse problems. Any experiment that requires an explanation can be couched thus - given the data, what is the theory/model that provides it - this is an inverse problem. In engineering, a given function (in a product/software …. ) requires a design - again an inverse problem. This course will introduce a wide array of features of inverse problems from science and engineering - from oil prospecting and seismology to cognitive science, from particle physics to engineering design. We will then introduce deterministic and probabilistic algorithms for solving these problems. Much of the class will be spent studying how the recent revolution in deep neural networks can (and cannot) be used to solve such inverse problems. The class will have a substantial computational component -- part of every class session will contain instruction and computer implementation of the algorithms in question. Students will carry out final projects in their own area of interest. Programming will be taught and carried out in Python and Tensorflow.

## Neural Computation

**APMTH 226**

2021 Fall

**Cengiz Pehlevan**

Monday, Wednesday

3:00pm to 4:15pm

This course introduces advanced mathematical methods and models used in theoretical neuroscience and theory of neural networks. We will explore computations and functions performed by the brain, and how they are implemented by neurons and their networks. We will cover selected topics from deep learning theory; spiking neuron models; population codes; normative theories of sensory representations; models of synaptic plasticity; computing with dynamics in recurrent neural networks; attractor network models of memory and spatial maps; neural models of probabilistic inference in the brain and drift-diffusion models of decision making. Concrete examples of applications of these ideas to the brain will be discussed. Topics at the research frontier will be emphasized.

## Interplay between Control and Learning

**APMTH 233**

2022 Spring

**Na Li**

Monday, Wednesday

9:45am to 11:00am

This advanced graduate course will provide students with an introduction to current areas of research at the intersection of control and machine learning. The course will firstly focus on tailoring control tools to study algorithms in large-scale optimization and machine learning. Then students will study how to combine reinforcement learning and model-based control methods for control design problems. Examples of topics include: first-order and zeroth-order optimization; dissipation inequality; stability of dynamical systems and Lyapunov functions; LMI (Linear Matrix Inequality); robust control; model predictive control, adaptive control; MDP and reinforcement learning; control-oriented analysis tools for temporal difference learning and Q-learning; sample complexity; policy gradient and policy optimization; uncertainty quantification and safe learning; iterative learning control; regularization of model-free control via prior model-based design; and multiagent reinforcement learning.

## Special Topics in Applied Mathematics

**APMTH 299R**

2021 Fall

**Cengiz Pehlevan**

Supervision of experimental or theoretical research on acceptable problems in applied mathematics and supervision of reading on topics not covered by regular courses of instruction.

## Special Topics in Applied Mathematics

**APMTH 299R**

2022 Spring

**Yiling Chen**

Supervision of experimental or theoretical research on acceptable problems in applied mathematics and supervision of reading on topics not covered by regular courses of instruction.