## Programs & Events

##### Illustrating Dynamics and Probability

Nov 11 - 15, 2019

This workshop will focus on the theoretical insights developed via illustration, visualization, and computational experiment in dynamical systems and probability theory. Some topics from complex dynamics include: dynamical moduli spaces and their dynamically-defined subvarieties, degenerations of dynamical systems as one moves toward the boundary of moduli space, and the structure of algebraic data coming from a family of dynamical systems. In classical dynamical systems, some topics include: flows on hyperbolic spaces and Lorentz attractors, simple physical systems like billiards in two and three dimensional domains, and flows on moduli spaces. In probability theory, the workshop features: random walks and continuous time random processes like Brownian motion, SLE, and scaling limits of discrete systems.

This workshop is partially funded by the Alfred P. Sloan Foundation award G-2019-11406 and supported by a Simons Foundation Targeted Grant to Institutes.

##### Organizing Committee

- Jayadev Athreya
- Alexander Holroyd
- Sarah Koch

##### Math + Art Panel

Nov 11, 2019

This panel discussion will explore the different ways in which artists and mathematicians approach mathematical concepts. We expect a dynamic conversation that will spark continued dialogue and future collaborations.

##### Organizing Committee

- Jayadev Athreya
- Allison Paschke
- Masha Ryskin
- Richard Schwartz

##### Algorithms in Complex Dynamics and Mapping Class Groups

Nov 2 - 3, 2019

Thurston maps are orientation-preserving branched covering maps of the two-sphere to itself for which the forward orbits of the branch points form a finite set. They arise in the classification of complex dynamical systems.

Recent work has shown close connections between the combinatorial, topological, and algebraic theory of Thurston maps and that of mapping class groups. The algorithmic and computational theories of mapping class groups are highly advanced and have reached the point of effective implementation via computer programs. However, such implementations for Thurston maps are significantly less advanced. The aim of the proposed Hot Topic workshop is to bring together researchers in the computational theory of mapping class groups and those in the combinatorial theory of Thurston maps in order to make headway on fundamental problems.

##### Organizing Committee

- Dan Margalit
- Kevin Pilgrim
- Rebecca Winarski

##### An ICERM Public Lecture: The nth Perspective

Oct 30, 2019

##### THIS TALK HAS BEEN CANCELED DUE TO UNFORESEEN CIRCUMSTANCES.

**We will still host the planned reception starting at 6:00pm at Brown University's Granoff Center. Please come enjoy the food and the opportunity to interact with the artists-in-residence featured in the "Math+Art" exhibit now on display in the Atrium Gallery. No tickets required.**

In mathematics, as in art, progress and innovation often come from looking at the world in a new way. These shifts in viewpoint sometimes come from a clear process of deduction, while other times they seem to arise mysteriously. In either case, they are often accompanied by a strong â€œAha!â€ feeling of insight. When first revisiting previous ideas in such a new light, a sense that one finally has â€œit all really rightâ€ emerges. Yet as experience with a new point of view develops, its own shortcomings tend to surface, setting the stage for another shift in perspective.

Through interactive demonstrations and... (more)

##### Math + Art Panel

Oct 21, 2019

This panel discussion will explore the different ways in which artists and mathematicians approach mathematical concepts. We expect a dynamic conversation that will spark continued dialogue and future collaborations.

##### Organizing Committee

- Jayadev Athreya
- Allison Paschke
- Masha Ryskin
- Richard Schwartz

##### Illustrating Number Theory and Algebra

Oct 21 - 25, 2019

The symbiotic relationship between the illustration of mathematics and mathematical research is now flowering in algebra and number theory. This workshop aims to both showcase and develop these connections, including the development of new visualization tools for algebra and number theory. Topics are wide-ranging, and include Apollonian circle packings and the illustration of the arithmetic of hyperbolic manifolds more generally, the visual exploration of the statistics of integer sequences, and the illustrative geometry of such objects as Gaussian periods and Fourier coefficients of modular forms. Other topics may include expander graphs, abelian sandpiles, and Diophantine approximation on varieties. We will also focus on diagrammatic algebras and categories such as Khovanov-Lauda-Rouquier algebras, Soergel bimodule categories, spider categories, and foam categories. The ability to visualize complicated relations diagrammatically has led to important advances in representation theory... (more)

##### Organizing Committee

- Ellen Eischen
- Joel Kamnitzer
- Alex Kontorovich
- Katherine Stange

##### Math + Art Panel

Oct 7, 2019

This panel discussion will explore the different ways in which artists and mathematicians approach mathematical concepts. We expect a dynamic conversation that will spark continued dialogue and future collaborations.

*Light refreshments will be served following the panel at 5 PM.*

##### Organizing Committee

- Jayadev Athreya
- Allison Paschke
- Masha Ryskin
- Richard Schwartz

##### Computational Textiles Working Group

Sep 23 - 27, 2019

The aim of this working group is to bring together theorists and practitioners of computational fiber arts and will have three related themes.

First, we would like to prove theorems about the geometry and topology of knitting. Second, we would like to explore the idea that knitting and textiles can be a physical embodiment of ideas in computational geometry. Third, we will use knitting and other textile arts as a way of visually communicating mathematical ideas to a broader audience.

The working group will take place the week following the Illustrating Geometry and Topology workshop.

##### Organizing Committee

- Sabetta Matsumoto
- Saul Schleimer
- Henry Segerman
- Laura Taalman

##### Math + Art Panel

Sep 16, 2019

##### Organizing Committee

- Jayadev Athreya
- Allison Paschke
- Masha Ryskin
- Richard Schwartz

##### Illustrating Geometry and Topology

Sep 16 - 20, 2019

**Applications closed. Workshop is at capacity.**

This workshop will focus on the interaction between visualization, computer experiment, and theoretical advances in all areas of research in geometry and topology. Fruitful interactions of this type have a long history in the field, with physical models and computer images and animations providing both illustration of existing work and inspiration for new developments. Emerging visualization technologies, such as virtual reality, are poised to further increase the tools available for mathematical illustration and experimentation. By bringing together expert practitioners of mathematical visualization techniques and researchers interested in incorporating such tools into their research, the workshop will give participants a clear picture of the state of the art in this fast-moving field while also fostering new collaborations and innovations in illustrating geometry and topology.

This workshop is partially funded by the... (more)

##### Organizing Committee

- Keenan Crane
- David Dumas

##### Math + Art Panel

Sep 6, 2019

##### Organizing Committee

- Jayadev Athreya
- Allison Paschke
- Masha Ryskin
- Richard Schwartz

##### Program Opener: Meet, Make and Design

Sep 5 - 6, 2019

Participants will be introduced to projects, equipment, and one another. Activities will include:

- participant lightning talk show and tell
- project introductions
- start of the micro courses
- tour of equipment
- short course planning session

There will be ample time for discussions with potential semester collaborators.

##### Organizing Committee

- David Bachman
- Kelly Delp
- Richard Schwartz