What if rearranging a triangle gave you extra area out of nowhere? In this short visual puzzle (youtube.com/shorts/k-i4V...), we break apart a triangle, shuffle the pieces… and a mysterious square appears. Is it magic? A trick?

The Scottish mathematician Peter Guthrie Tait loved to think about knottiness. His atlas of knots shows how hard it can be to tell knots apart. www.quantamagazine.org/a-simple-way...

🌟 Don't miss the latest updates 🌟 www.crm.cat/wigglyhedra-... crmatematica.wordpress.com/2025/09/19/l... @ub.edu

Quasineutral multistability in an epidemiological-like model for defective-helper betacoronavirus infection in cell cultures www.sciencedirect.com/science/arti...

🔭✨ El CRM participa a la Nit Europea de la Recerca amb xerrades a Vic, Barcelona i l’Hospitalet! 📍 Vine a descobrir com les matemàtiques connecten amb el món real: ciència, societat i curiositat en estat pur.

www.crm.cat/wigglyhedra-... @ub.edu

Combinatorics reveals hidden patterns in chance. youtube.com/shorts/eykft...

🌟 Don't miss the latest updates 🌟 www.crm.cat/crm-at-the-b... www.crm.cat/mathematics-... www.crm.cat/mathematics-... www.crm.cat/javier-gomez...

The stratification by automorphism groups of smooth plane sextic curves This work is significant both for algebraic geometry and for applied fields such as mathematical physics, where K3 surfaces play a fundamental role. link.springer.com/article/10.1...

✨ Algebra & Evolution: Reconstructing the Tree of Life ✨ 💡 A fascinating intersection of mathematics and biology, showing how pure theory can illuminate the story of life on Earth. 📹 Watch the full video: www.youtube.com/watch?v=0OX7...

My talk at the WWTNS is now online! In it, I explore how both random processes and Hebbian learning shape representational drift: www.youtube.com/watch?v=WH4P... In the end I raise the question: How can neuronal activities change while representational similarity is preserved? 🧠🧪

Si vols llegir el llibre "Matemáticas x matemáticas", el tens disponible a #ciènciaxllegirBCT. 🔗 bibcercador.uab.cat/permalink/34... #BCTrecomana #DonesiCiència #DonesMatemàtiques @crmatematica.bsky.social

✨ How do bird flocks form or diseases emerge? Join the brand-new EMBO | EMBL Symposium #EESCollectivity and explore how collective behaviours arise from fundamental principles across biological systems 🧬🦠🐒 💻 s.embl.org/ees26-01-bl ✒️ Submit your abstract by 18 Nov

Following up on my last post with some more detail: Our new opinion in CONEUR: Statistical learning and representational drift: A dynamic substrate for memories authors.elsevier.com/sd/article/S... Neural activity patterns drift over days. Yet, representational similarity remains stable. 🧠🧪 1/5

This is the first paper to come out from my postdoc at @crmatematica.bsky.social. Still in collaboration with my old friends Simon Rumpel and Matthias Kaschube, though. 🧠🤝 5/5

‘t Hooft bundles on the complete flag threefold and moduli spaces of instantons sciencedirect.com/science/arti...

👩‍🎤🧪Si tens una proposta que combina recerca, tecnologia i divulgació amb la creació musical, aquest és el teu escenari! 🗓️Data límit per enviar propostes: 15 de setembre. @uab.cat @pruab.cat @incuab.bsky.social @crmatematica.bsky.social @uabbiociencies.bsky.social @uabciencies.bsky.social

✨ Exploring Brain States: Models, Maps & Behavior ✨ 📹 Watch the full video: youtu.be/AtvieGCy-KQ

It’s not magic—it’s modular arithmetic. www.youtube.com/@CRMatematica

📚✨ Participate in our story! 📖 Read the 6th chapter of the saga on our blog. 🤝 Help the 3 protagonists continue their adventure. Leave your solution in the comments of this post! 💡👇 crmatematica.wordpress.com/2025/09/04/l...

🌟 Don't miss the latest updates 🌟 www.crm.cat/talent-jove-... www.crm.cat/barcelona-st... www.crm.cat/esgi-2025-ma... www.crm.cat/bamb-2025-a-...

The article "Regular ring properties degraded through inverse limits" www.sciencedirect.com/science/arti...

🧠 Mathematics and Neuroscience: A Fascinating Connection with David Terman 🔗 youtu.be/M40WuMmX2aE Don’t miss it!

L'1 d'abril de 1954 el matemàtic Julio Rey Pastor va ocupar el seient F de la Real Academia Española de la Lengua. Aquest arxiu digitalitzat ofereix documents rellevants per conèixer millor la seva trajectòria. @crmatematica.bsky.social @fxroque.bsky.social @craiubmatesinfo.bsky.social @pruab.cat

🌟 Don't miss the latest updates 🌟 www.crm.cat/the-way-dna-... www.crm.cat/from-real-pr... www.crm.cat/quatre-noves...

🌟 Don't miss the latest updates 🌟 www.crm.cat/luis-alamo-p... elgegantdelpi.blog/2025/07/03/e... www.crm.cat/niclas-riege... www.crm.cat/the-crm-host...

🧠✨ Diverse neuronal activity patterns contribute to the control of distraction in the prefrontal and parietal cortex 🔗https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3003008

📢 Don't miss the upcoming activities! 📢 MdM Focused Research Programme on Combinatorial Geometries & Geometric Combinatorics 🔗 www.crm.cat/irp-mdm-1120... 📅Registration deadline for the Research Schools: 14/09/2025 Registration deadline for the Closing Conference: 02/11/2025

🌟 Don't miss the latest updates 🌟 1. www.crm.cat/three-crm-re... 2. www.crm.cat/gissell-estr... 3. www.crm.cat/a-day-of-hig...

📄 Periodic solutions to integro-differential equations: variational formulation, symmetry, and regularity By Xavier Cabré (ICREA - @upc.edu - @crmatematica.bsky.social), Gyula Csató (@ub.edu - @crmatematica.bsky.social ) and Albert Mas (@upc.edu - @crmatematica.bsky.social)

We will have the pleasure of welcoming Tomás Alarcón as a guest lecturer at the @difensc-rsef.bsky.social school with the course: 🧬Cancer as an ecological process @crmatematica.bsky.social More info 👇 www.crm.cat/xiii-gefenol...

🎬 T’atreveixes amb una aventura matemàtica? 📖✨ Descobreix la saga de relats del nostre blog i deixa’t sorprendre per la màgia de les matemàtiques narrades. 👉 Llegeix-les a: elgegantdelpi.blog/category/mathematical-stories

📢 Don't miss the upcoming activities! 📢 Exploratory Workshop on Computational Mathematics 🔗https://www.crm.cat/exploratory-workshop-on-computational-mathematics/ 📅Registration deadline 04/09/2025 #crmatematicactivitats

📢 Don't miss the upcoming activities! 📢 www.crm.cat/seminar-van-...

🌟 Don't miss the latest updates 🌟 www.crm.cat/hong-wang-on... www.crm.cat/icmns-2025-t... www.crm.cat/jisd-2025-wh...

📚✨ Participate in our story! 📖 Read the 5th chapter of the saga on our blog. 🤝 Help the 3 protagonists continue their adventure. Leave your solution in the comments of this post! 💡👇 elgegantdelpi.blog/2025/07/09/m... #crmatematicblog

🎓 Hochschild Polytopes By Vincent Pilaud (Universitat de Barcelona & Centre de Recerca Matemàtica) and Daria Poliakova (Universität Hamburg) 🔗 link.springer.com/article/10.1...

We are very glad to have Léonie Canet as one of the invited lecturers of the GEFENOL-DIFENSC Summer School at @crmatematica.bsky.social ✏️ Functional renormalisation group for nonequilibrium systems Course details in www.crm.cat/xiii-gefenol...

📢 Get ready for a double dose of complexity this summer! Two top-tier summer schools are coming to the CRM, and the abstract submission deadline is July 13, 2025. 🧵👇 #ComplexSystems #PhDlife #StatisticalPhysics #PhysicsEvents

🔍 Discover how mathematics meets real-world challenges at the European Study Group with Industry (ESGI)! 👉 More info: www.crm.cat/european-stu...

🌟 Don't miss the latest updates 🌟 www.crm.cat/guillem-blan... www.crm.cat/hypatia-2025... www.crm.cat/a-journey-th...

Having fun today at @crmatematica.bsky.social talking about complexity quantifiers and photonic neurons. Fun day with @josepsardanyes.bsky.social and collaborators in exciting project. Science and fun. Sharing my experiments at @whitmancollege.bsky.social

By G. Csató (@ub.edu and @crmatematica.bsky.social) and A. Mas (@upc.edu and @crmatematica.bsky.social) 🔗 www.sciencedirect.com/science/arti...

📢 Don't miss the upcoming activities! 📢 www.crm.cat/5th-barcelon... Registration deadline 06/07/2025 #crmatematicactivitats

📚✨ Participate in our story! 📖 Read the 4th chapter of the saga on our blog. 🤝 Help the 3 protagonists continue their adventure. Leave your solution in the comments of this post! 💡👇 elgegantdelpi.blog/2025/06/26/e...

🌟 Don't miss the latest updates 🌟 www.crm.cat/the-irp-on-m... www.crm.cat/javier-gomez... www.crm.cat/closing-sess... www.crm.cat/what-is-open...

#PDI, fes lloc al 'Peer review' a la teva agenda! #formació #peereview @pruab.cat @clarivateag.bsky.social @icta-uab.bsky.social @crmatematica.bsky.social @creaf.cat @incuab.bsky.social @ibb-uab.bsky.social

🌟 Don't miss the latest updates 🌟 www.crm.cat/nuria-fagell... www.crm.cat/el-crm-acull... www.crm.cat/welcoming-el...

📚✨ Participa en la nostra història! 📖 Llegeix el 3r capítol de la saga al nostre blog. 🤝 Ajuda als 3 protagonistes a poder seguir l’aventura. Deixa la teva solució als comentaris d'aquest post! 💡👇

Boundary behaviour of universal covering map www.sciencedirect.com/science/arti... In their recent work, G.R. Ferreira (CRM), and A.Jové, @ub.edu investigate the boundary behaviour of universal covering maps π:D→Ω.