GOTHAM lab
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gotham-lab.bsky.social
GOTHAM lab
@gotham-lab.bsky.social
Group of Theoretical and Applied Modeling at @www.unizar.es

Website: https://gotham.bifi.es/
6/6 Thanks to all the collaborators in this project:

Hugo Pérez, @santiagolaot.bsky.social @federicomalizia.bsky.social, Luis Mario Floria, @gomezgardenes.bsky.social & @sorianopanos.bsky.social

More info at: www.nature.com/articles/s42...
January 10, 2026 at 3:01 PM
5/6 But the microscopic organization is also important.

Hyperedge overlap promotes polarization, as it reduces exposure to different opinions and reinforces local consensus 🤝
January 10, 2026 at 3:01 PM
4/6 This effect is structural.

As higher-order interactions become denser, agents increasingly participate in heterogeneous groups, which suppress polarization and promote moderation.

We also show this analytically!
January 10, 2026 at 3:01 PM
3/6 The key result is that sparse higher-order interactions promote polarization.

When group interactions are sparse, agents are often embedded in homogeneous groups, limiting exposure to dissent and reinforcing extreme views.
January 10, 2026 at 3:01 PM
2/6 Most opinion-dynamics models rely on pairwise interactions 👭+👬+👫+....

However, opinion formation often happens in groups:
👥👥👥👥👥👥+👥👥👥👥👥👥+👥👥👥👥+... where discussions can reinforce or moderate views.

This demands a higher-order framework to explicitly capture group interactions and homophily.
January 10, 2026 at 3:01 PM
1/6 And another article out in @commsphys.nature.com

Sparse group interactions polarize…but dense group interactions moderate!!

Polarization emerges as a structural effect of how groups are organized: www.nature.com/articles/s42...
January 10, 2026 at 3:01 PM
7/7 Thanks to all the collaborators in this project:

@santiagolaot.bsky.social , Octavian Rotita, Alex Arenas, @sorianopanos.bsky.social & @gomezgardenes.bsky.social

More info at:
www.nature.com/articles/s42...

and... stay tuned, more to come 😉 !!!
January 8, 2026 at 1:12 PM
6/7 Strikingly, the model partially reconstructs empirical epidemic trajectories, recovering the temporal ordering of strain emergence observed in genomic surveillance.

Overall, epidemic dynamics 📈 depend crucially on the topology of genotype networks, beyond low-dimensional antigenic descriptions.
January 8, 2026 at 1:12 PM
5/7 We then apply the model to Influenza A (H3N2). Its modular genotype network naturally produces:

☑️ lineage turnover
☑️ competition between multiple strains
January 8, 2026 at 1:12 PM
4/7 The key result is that network topology alone controls the endemic behavior:

▶️ Homogeneous networks → stable equilibria.
▶️ Modular networks with mutant swarms → recurrent oscillations.

No seasonal forcing is required to produce these oscillations!!!
January 8, 2026 at 1:12 PM
3/7 To study this, we introduce an eco-evolutionary epidemic model coupling:

✔ Contagion
✔ Immune memory & cross-immunity
✔ Mutation as diffusion on genotype networks

All within a minimal, analytically tractable framework.
January 8, 2026 at 1:12 PM
2/7 Classical eco-evolutionary models describe antigenic drift in low-dimensional antigenic spaces.

However, genomic data tell a different story: real viruses evolve on heterogeneous, modular genotype networks, with mutant swarms capturing different viral lineages.
January 8, 2026 at 1:12 PM
1/7 🚨 New article out in @commsphys.nature.com

We show that viral 🦠 evolution is best captured through complex genotype networks, whose topology alone can drive oscillatory endemic dynamics and epidemic variability:

www.nature.com/articles/s42...
January 8, 2026 at 1:12 PM
🚨 Last hours!!! 👇
⏳ Last days to submit your work to COMPLENET 2026!

Don’t miss the opportunity to present your most interesting and recent research.

📄 Submission details:
👉 complenet.weeblysite.com/call-for-con...

🌐 More info:
👉 complenet.weeblysite.com

We look forward to seeing you in Zaragoza next May!
November 15, 2025 at 8:55 AM
Our two youngest members, @frandilisante.bsky.social and Hernán Gracia, were awarded yesterday as the best Master’s and Bachelor’s students at the San Alberto Magno festivity in our Faculty of Science at @unizar.es

Congratulations, and keep enjoying the research journey!! 🚀
November 14, 2025 at 11:11 PM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 9/12. Thrilled to have Jordi Soriano as a keynote speaker in Complenet’26! Join us to learn more about #neurons and #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 27, 2025 at 9:37 PM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 10/12. Thrilled to have Lisette Espín-Noboa @lespin.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #socialinequality and #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 31, 2025 at 4:27 PM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 12/12. Thrilled to have Virginia Domínguez-García @domgarvir.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #ecology and #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
November 13, 2025 at 9:22 AM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 11/12. Thrilled to have Vito Latora as a keynote speaker in Complenet’26! Join us to learn more about #dynamics and #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
November 7, 2025 at 10:29 AM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 4/12. Thrilled to have Anna Levina as a keynote speaker in Complenet’26! Join us to learn more about #networks, #neurons and #criticality!

🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
September 29, 2025 at 1:46 PM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 5/12. Thrilled to have Laurent Hébert-Dufresne @lhd.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #networks and #dynamics!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 1, 2025 at 4:55 PM
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📢 Keynotes unlocked: 6/12. Thrilled to have Sylvia Cremer as a keynote speaker in Complenet’26! Join us to learn more about #networks, #socialimmunity and #ants!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 6, 2025 at 1:15 PM
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📢 Keynotes unlocked: 7/12. Thrilled to have Sandro Meloni @smelons.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #dynamics on #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 10, 2025 at 4:21 PM
Reposted by GOTHAM lab
📢 Keynotes unlocked: 8/12. Thrilled to have Andrea Migliano as a keynote speaker in Complenet’26! Join us to learn more about #anthropology and #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 17, 2025 at 3:12 PM
Reposted by GOTHAM lab
🎉 So excited to host the next CompleNet conference 🎉

Don’t miss it 👇 See you next May in Zaragoza!!!
📢 Excited to announce CompleNet 2026! Join us to share your network science research in a highly interdisciplinary conference!

🗓️ 4–8 May 2026 | 📍 Zaragoza, Spain 🇪🇸
🚨 Call for contributions open – submit by Nov 15, 2025!
🌐 Info & registration: complenet.weeblysite.com
September 15, 2025 at 8:02 PM