Tomorrow starts the biennial migration to the SIAM "Snowbird" conference on applied dynamical systems. This is my favorite conference series! #SIAMDS25

The published version of our paper: math.ucla.edu/~mason/papers/… "Competition Between Group Interactions and Nonlinearity in Voter Dynamics on Hypergraphs" by Jihye Kim, Deok-Sun Lee, Byungjoon Min, Mason A. Porter, Maxi San Miguel, and Kwang-Il Goh

Our paper is out: nature.com/articles/s4146… "Perceived community alignment increases information sharing" by Elisa C. Baek, Ryan Hyon, Karina López, Mason A. Porter, & Carolyn Parkinson Note: Whether or not you choose to share this post is related to the topic of our paper! :P

The UCLA mathematics department is doing pretty well here (at least according to ChatGPT).

There are many ways to describe Top Dog (which is a Berkeley institution), but "causal sausage joint" is a new one! Meanwhile, you can perhaps find some "casual inference" in their statistics department. :P

Here is our new paper on microbiome dynamics: arxiv.org/abs/2507.11958 "Interacting Hosts with Microbiome Exchange: An Extension of Metacommunity Theory for Discrete Interactions" by Michael Johnson and Mason A. Porter

My Mathematics Genealogy Project (MGP) page is up to date again, showing all 32 of my graduated PhD students (and 3 completed grandstudents). I don't have anybody slated to finish in 2026, so my direct descendants will be up to date for a while. mathgenealogy.org/id.php?id=7547…

Here is my schedule for WorldCon 2025! #Worldcon2025 #SciFi #Fantasy

Our new article for teens and preteens is now online! arxiv.org/abs/2508.05919

The published version of our paper is now out: math.ucla.edu/~mason/papers/… Title: "Oscillatory and excitable dynamics in an opinion model with group opinions" Authors: Corbit R. Sampson, Juan G. Restrepo, & MAP I am particularly proud of a couple sentences in the introduction. :P

Here is my Mathematics Department version of today's XKCD (xkcd.com/3140/).

The 'talk' is technically a discussion period.

We have a new paper on arXiv: arxiv.org/abs/2509.20216 The idea is to take a well-known type of model (Ising dynamics) to explore the effect of heterogeneous network structures in multilayer networks on the dynamics on those networks.

I was walking around the old part of Dresden and I saw some street signs for sale outside a souvenir shop. I had to buy this one.

US Dynamics Days 2026: ddays.org/2026/ The 44th Dynamics Days US, a single-track meeting on nonlinear dynamics and applications, will take place January 9-11, 2026 in Tucson, Arizona. More info at ddays.org/2026. Dynamics Days is one of my favorite conferences!

I saw a paper that used the term "nudging", and that inspired me to create this instance of the GTM meme.

A satellite image of the East Wing just leaked. :P (Here is my version of the meme.)

The published version of our paper "Bounded-Confidence Models of Opinion Dynamics with Neighborhood Effects" math.ucla.edu/~mason/papers/…

New paper on arXiv: "Local Geometric and Transport Properties of Networks that are Generated from Hyperuniform Point Patterns" Hyperlink: arxiv.org/abs/2511.21082