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Eduardo G. Altmann

@eduardoaltmann.bsky.social
230 followers 112 following 24 posts

Dynamics and Complex Systems. Professor at The University of Sydney, School of Maths and Stats. www.maths.usyd.edu.au/u/ega

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Eduardo G. Altmann @eduardoaltmann.bsky.social · 02/09/2026
I'm on strike today to defend the teaching- research connection, reasonable use of AI, and better pay at our university. Sydney uni staff can join the union and the strike via nsw.nteu.au/sydney/onstr...
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Clément Canonne @ccanonne.github.io · 01/09/2026
7am, picket line ready to go! nsw.nteu.au/sydney/onstr...
A picket line set up
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MATRIX @matrix-inst.bsky.social · 29/07/2026
MATRIX is delighted to welcome the organisers and participants of the "Mathematical Billiards, Geometric Optics, and Dynamical Systems" research program to Creswick. www.matrix-inst.org.au/events/mathe...
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 14/08/2026
Our paper on fractals in r-tipping has been published today as Chaos 36, 083122 (2026) doi.org/10.1063/5.03... Many improvements over the pre-print, thanks to the very helpful comments by the editor and reviewers from Chaos @aip-publishing.bsky.social
doi.org
Fractals in rate-induced tipping
When parameters of a dynamical system change sufficiently fast, critical transitions can take place even in the absence of bifurcations. This phenomenon is know
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 02/07/2026
Physicists and AI model Claude 'collaborate' to prove a 10-year-old jamming conjecture phys.org/news/2026-06...
phys.org
Physicists and AI model Claude 'collaborate' to prove a 10-year-old jamming conjecture
A mathematical problem that had remained unsolved for more than 10 years in the physics of complex systems has finally been resolved through an unusual collaboration: one involving two theoretical phy...
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 26/06/2026
"Code evolution for link prediction in complex networks", pre-print w/ Alexey Vlaskin We use an AlphaEvolve-like approach to test whether LLMs can discover better link-prediction methods. They can, even without showing great creativity. Repo: github.com/avlaskin/ant...
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 05/06/2026
I support the Leiden Declaration on Artificial Intelligence and Mathematics. Read and sign the declaration: leidendeclaration.ai
leidendeclaration.ai
Leiden Declaration on Artificial Intelligence and Mathematics
This declaration calls for action to address the challenges posed by the use of artificial intelligence within mathematics research.
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Clément Canonne @ccanonne.github.io · 25/05/2026
New preprint up, led by Joy (Qiping) Yang and Yash Pote, with Jonathan Scarlett: we consider a relaxation of the standard (distribution) closeness testing task, where the algo now only needs to distinguish between p=q (equal) and |H(p)-H(q)|=Ω(1) (their entropies differ). 📝 arxiv.org/abs/2605.23225
arxiv.org
Entropy Equivalence Testing
We introduce the problem of \emph{entropy equivalence testing} for probability distributions, a relaxation of the well-studied closeness testing problem, where the distribution testing algorithm is no...
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Taha Yasseri @tahayasseri.bsky.social · 19/12/2025
Thrilled to announce the Handbook of Computational Social Science is officially out! 956 pages, 118 authors, and truly global, interdisciplinary perspectives. Deep thanks to the contributors and anonymous reviewers who shaped this over 4 years. Buy your copy now! @elgarpublishing.bsky.social
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 26/01/2026
"Fractals in rate-induced tipping", new pre-print with Jason Qianchuan Wang and Yi Zheng. We show how fractal saddles in the phase space of non-linear dynamical systems lead to fractals in the parameter space controlling rate-induced tipping points. arxiv.org/abs/2601.16373
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 14/01/2026
"Meso-scale structures in signed networks", new preprint with Wei Zhang (weizhang1995.bsky.social) , Olga Boichak (@ol, Tristram J Alexander, and Tiago P. Peixoto (@tiago.skewed.de) arxiv.org/abs/2512.11281
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Diego Rybski @diegorybski.bsky.social · 03/11/2025
Please consider submitting an abstract to DPG Spring Meeting of the Condensed Matter Section (SKM); 8 - 13 March 2026; Dresden: dresden26.dpg-tagungen.de Physics of Socio-Economic Systems Division: www.dpg-physik.de/vereinigunge...
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Dr Selena Wisnom @lswisnom.bsky.social · 03/11/2025
Academics in Assyria in the 7th c BC complain that admin is preventing them from doing research and teaching
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Clément Canonne @ccanonne.github.io · 06/10/2025
Some extra info: (1) Priority areas are listed, but those working in *any* area relevant to the School of CS are welcome to apply; (2) the due time of the application (Dec 1) is 🇦🇺 Sydney time (keep in mind!); (3) we welcome applications at *all* levels. usyd.wd105.myworkdayjobs.com/en-GB/USYD_E...
usyd.wd105.myworkdayjobs.com
Multiple Continuing (Tenure-Track) Academic Positions, School of Computer Science, Faculty of Engineering, The University of Sydney
Join a thriving Faculty of Engineering at a University ranked amongst the world’s best teaching and research institutions Located in the heart of Sydney’s bustling inner west quarter, close to beaches...
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Australian Academy of Science @science.org.au · 10/09/2025
This is an important first step. Association with Horizon Europe would scale & diversify Australia international scientific collaborations We’ve long advocated for Association to Horizon Europe, recognising it would mitigate geopolitical risks & deliver economic & scientific benefits to Australia.
This chart shows the growth of Australia’s international science collaborations (measured by the number of co-authored publications) with various countries and regions from 2005 to 2024.
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 04/09/2025
"Inference of epidemic networks: the effect of different data types" , new pre-print with Oscar Fajardo and Carl Suster. We introduce a model+MCMC to sample transmission trees based on different types of data on sampled hosts. Paper: arxiv.org/abs/2509.01871 Code: github.com/oscarcapote/...
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Taha Yasseri @tahayasseri.bsky.social · 22/07/2025
If you're attending #ic2s2 and are interested in this postdoc position, please reach out to me and let's have a chat. Application deadline: 1st August.
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 22/07/2025
For NSW residents, consider signing the e-petition "Extend Transport Concessions to Students in NSW" www.parliament.nsw.gov.au/la/Pages/ePe...
parliament.nsw.gov.au
LEGISLATIVE ASSEMBLY - Signing ePetition - Extend Transport Concessions to All International and Part-Time Students in NSW
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Sydney Mathematical Research Institute (SMRI) @sydmathinst.bsky.social · 03/07/2025
Applications are now open for our International Visitor Program, open to #mathematicians to visit Aus 🐨 between July '26-'June 27, or March '26-June -27 (Aus/NZ citizens) 📅 Apply by Aug 1, info: mathematical-research-institute.sydney.edu.au/internationa... Please share with your networks 🔁 #MathSky
mathematical-research-institute.sydney.edu.au
International Visitor Program - Sydney Mathematical Research Institute
IVP August 2023 applications are due 8 August 2023, for July 2024–June 2025 visits (general applicants) & March 2024–June 2025 for Australian citizens/PR & NZ citizens.
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 26/06/2025
Continuing position on Mathematical Optimization in our School here in Sydney. usyd.wd105.myworkdayjobs.com/en-GB/USYD_E...
usyd.wd105.myworkdayjobs.com
Senior Lecturer / Associate Professor in Optimisation Theory
Full Time, continuing academic opportunity, located on the Camperdown Campus at the School of Mathematics and Statistics Join a world-class community of mathematicians and statisticians Offering Base ...
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Diego Rybski @diegorybski.bsky.social · 19/06/2025
Compendium of Urban Complexity - just published: link.springer.com/book/10.1007...
link.springer.com
Compendium of Urban Complexity
This book looks at the behavior of cities as complex systems, drawing on novel methods and insights at the intersection of physics, economics and geography
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Max Planck Institute for the Physics of Complex Systems @mpipks.bsky.social · 17/06/2025
Interaction networks and stability of coexistence in ecological communities: work by @yumeng0806.bsky.social, @szhorvat.bsky.social, @lepuslapis.bsky.social, Carl Modes @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social #published @cp-cellsystems.bsky.social: doi.org/10.1016/j.cels.2025.101297
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Wikimedia Foundation @wikimediafoundation.org · 28/05/2025
Who studies Wikipedia and other Wikimedia projects? 🔬 The Wikimedia Foundation’s Research team does, motivated by the same principles of openness and transparency that powers the free knowledge movement as a whole. 🧵⬇️ (1/5)
Meet the Research team. This expert group of scientists, researchers, engineers, and community specialists design and test new technologies, produce empirical insights to support new products and programs, and publish research informing the strategy of the Wikimedia Foundation and the Wikimedia movement.
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philuponscience.bsky.social @philuponscience.bsky.social · 25/05/2025
#SYDNEY it's your turn for Physics in the Pub to - Quantum or not! Call for presenters now open, until 6 June. More info here:https://www.linkedin.com/events/physicsinthepub7309452389646835712/ Audience registration here: events.humanitix.com/physics-in-t... sponsored by @ausphysics.bsky.social
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Ben Fulcher @bendfulcher.bsky.social · 09/05/2025
Funded PhD position available in my group: international applications welcome! Looking for a student interested in complex systems, dynamics and applications to complex neural systems to join our group in the School of Physics at Sydney University. Details here: www.sydney.edu.au/scholarships...
sydney.edu.au
ARC Postgraduate Research Scholarship
A $40,109 per annum stipend scholarship for research students within the Faculty of Science.
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 12/05/2025
Nice visualisation on data of Australian elections.
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 10/04/2025
"Sampling Triangulations of Manifolds Using Monte Carlo Methods", my paper with Jonathan Spreer has now been published in "Experimental Mathematics". www.tandfonline.com/doi/citedby/...
tandfonline.com
Citations: Sampling Triangulations of Manifolds Using Monte Carlo Methods
Subscribe to citation updates from Sampling Triangulations of Manifolds Using Monte Carlo Methods
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Tiago Peixoto @tiago.skewed.de · 21/03/2025
Happy that this just came out on PRX: “Network Reconstruction via the Minimum Description Length Principle” journals.aps.org/prx/abstract... 1/3
journals.aps.org
Network Reconstruction via the Minimum Description Length Principle
A new information-theoretic approach to analyzing complex systems uncovers hidden networks by minimizing data complexity, a method that improves accuracy and efficiency.
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Márton Karsai @martonkarsai.bsky.social · 19/03/2025
Open postdoc position at @ceu-dnds.bsky.social in Vienna in the Computational Human Dynamics Lab of @martonkarsai.bsky.social on inequalities in 15-minutes cities in collaboration with www.dut-coline.org. Check it out: careers.ceu.edu/job/Vienna-P... @ic2s2.bsky.social @netscisociety.bsky.social
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Stephen Bartlett @bartlettquantum.bsky.social · 12/03/2025
At PRX Quantum, we are very excited to launch a collection of papers celebrating the International Year of Quantum Science and Technology! Have a look… and for those at the APS Global Physics Summit 2025 please come to our session on Tuesday to hear more! prxquantumcollection.org
prxquantumcollection.org
IYQ Collection – Impacting the Next DecadeIYQ Collection – Impacting the Next Decade
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Tiago Peixoto @tiago.skewed.de · 12/03/2025
Like a rookie, I forgot to put the link in the very first post: arxiv.org/abs/2503.07736
arxiv.org
Scalable network reconstruction in subquadratic time
Network reconstruction consists in determining the unobserved pairwise couplings between $N$ nodes given only observational data on the resulting behavior that is conditioned on those couplings -- typ...
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Sydney Mathematical Research Institute (SMRI) @sydmathinst.bsky.social · 11/03/2025
Come and explore elements of #symmetry in music with this combined lecture-recital: part of #MathsAtTheMuseum. Artem Puletov and Denis Collins (UQ) will discuss symmetry in music, with an accompanying performance by Ensemble Offspring Reservations essential: bit.ly/4k8jVtP #CCWMxSMRI #mathsky #IDM
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Roberta Sinatra @robysinatra.bsky.social · 04/03/2025
🌍 Join us in Copenhagen - fantastic city for work-life balance and awesome science. I am hiring PhD students & Postdocs in my group at SODAS Univ of Copenhagen to explore AI, network science & the science of science. 📍 Start: flex summer 2025 📌 Info&Apply: www.robertasinatra.com/2025/03/02/p...
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Tara Murphy @taramurphy.bsky.social · 05/03/2025
We're advertising a continuing position in the School of Physics at Sydney! Lecturer / Senior Lecturer in Theoretical Optics & Photonics Deadline April 3rd usyd.wd3.myworkdayjobs.com/USYD_EXTERNA... Base Salary Level B/C, $122,830 - $173,492 p.a + 17% superannuation #Physics #AcademicSky
usyd.wd3.myworkdayjobs.com
Lecturer / Senior Lecturer in Theoretical Optics & Photonics
Full time, continuing position. Located on the Camperdown Campus at the School of Physics Exciting opportunity to join the leading physics department in the country, with outstanding staff and student...
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Alec Kirkley @captainkirk1041.bsky.social · 18/02/2025
Deadline for the SINM workshop at NetSci 2025 is approaching. Only 2 more days to submit! Please feel free to reach out with any questions and see sinm.network for details.
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Max-Planck-Gesellschaft @maxplanck.de · 18/02/2025
‼️Save the date‼️The new Max Planck #Postdoc Program kicks off its first call for applications from April 1, 2025; applications can be submitted until May 13, 2025. mpg.de/en/max-planc... #ScienceCareer
The new Max Planck Postdoc Program adresses young scientists.
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Clément Canonne @ccanonne.github.io · 15/02/2025
Meanwhile, Australia still leaves in limbo many incoming students (holding PhD offers and funding!) for months on end, esp. from Iran. Waiting a year, two, with no updates — unnecessary and cruel. www.timeshighereducation.com/news/phd-vis... via John Ross (Times Higher Ed). @davidpocock.bsky.social
timeshighereducation.com
PhD visa applicants trapped in ‘indefinite waiting period’
‘Endless stress’ confronts Iranian doctoral candidates who worked for a year just to cover the application fee
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 10/02/2025
"A generative model for community types in directed networks", paper with Cathy X. Liu and Tristram J. Alexander, now published in the Journal of Complex Networks. It shows how different relationships between two groups of nodes (users) can appear in (social) networks. doi.org/10.1093/comn...
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Fabiano L. Ribeiro @fribeiro.bsky.social · 06/02/2025
🚀 Our new preprint on the scaling of one-dimensional cities is out! 📄🌆 Excited to share this work with @diegorybski.bsky.social & @renabridged. Check it out: 🔗 arxiv.org/html/2501.12... #UrbanScaling #ComplexSystems #Cities #scalinglaws #TheLine #NEOM
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Carl T. Bergstrom @carlbergstrom.com · 04/02/2025
Modern-Day Oracles or Bullshit Machines? Jevin West (@jevinwest.bsky.social) and I have spent the last eight months developing the course on large language models (LLMs) that we think every college freshman needs to take. thebullshitmachines.com
thebullshitmachines.com
INTRODUCTION
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Sydney Mathematical Research Institute (SMRI) @sydmathinst.bsky.social · 04/02/2025
Just over two weeks left to apply to our program for visits in 2026 (Applications: bit.ly/3XqOxxK, due 18 February)! To get a feel for research at SMRI, interviews with visiting mathematicians are on this playlist: www.youtube.com/playlist?lis...
youtube.com
SMRI Interviews - YouTube
Research profile videos and interviews with domestic and international visitors to the Sydney Mathematical Research Institute. Read all visitor profiles: htt...
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 02/02/2025
"Synthetic graphs for link prediction benchmarking", new paper with Alexey Vlaskin published in the Journal of Physics: Complexity @ioppublishing.bsky.social doi.org/10.1088/2632...
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Manlio De Domenico @manlius.bsky.social · 08/01/2025
If you feel that BlueSky is “different“ from X, the data supports you :) Using a network of 15M users (56% of the platform) we find that the probability that the log-normal law is wrong wrt to the power-law is just ~7% Why that matters? Pop 🧵 follows! 1/ #scaling #NetSky #ComplexSystems 🧪
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janoskertesz.bsky.social @janoskertesz.bsky.social · 08/01/2025
STAPHYS29: Abstract sumbission deadline postponed to January 20! statphys29.org/abstract/
statphys29.org
Abstracts – StatPhys29 – 2025 Florence, Italy
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Tiago Peixoto @tiago.skewed.de · 08/01/2025
Bumping this once more. One of the benefits of IT:U is the very generous in-house base funding, consisting of recurrent positions for post-docs and PhDs, not just as a part of a startup package. Get in touch if you want to know more details.
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Elisa Omodei @elisaomodei.bsky.social · 07/01/2025
📣 We are hiring! CEU Department of Network and Data Science is looking for a new assistant professor. We seek applications from candidates with a background in Computational Social Science. The review of applications will begin on January 15. 🔗 careers.ceu.edu/job/Vienna-A...
careers.ceu.edu
Assistant Professor (f/m/d)
Assistant Professor (f/m/d)
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Eduardo G. Altmann @eduardoaltmann.bsky.social · 18/12/2024
"Statistical Laws in Complex Systems: Combining Mechanistic Models and Data Analysis", my 150p monograph written at @SydneyMaths and @mpi_pks is now published by @SpringerNature: Electronic/print: link.springer.com/book/10.1007... (ask me for e-copies or check arxiv.org/abs/2407.19874) A thread:
link.springer.com
Statistical Laws in Complex Systems
This book provides a unifying approach to the study of statistical laws, evaluating their role in the theoretical understanding of complex systems
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Max Planck Institute for the Physics of Complex Systems @mpipks.bsky.social · 17/12/2024
The Max Planck Institute for the Physics of Complex Systems in Dresden has moved its social media presence to BlueSky. Follow us for updates on our research on the Physics of Complex Systems!
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Sydney Mathematical Research Institute (SMRI) @sydmathinst.bsky.social · 16/12/2024
Applications for round 1 of our International Visitor Program are open! Are you a mathematician looking to visit Australia & spend time doing research? Apply by Feb 18: bit.ly/3XqOxxK. Please share with interested parties 🔁 #mathsky #statsky #IVP #SMRI
bit.ly
International Visitor Program - Sydney Mathematical Research Institute
IVP August 2023 applications are due 8 August 2023, for July 2024–June 2025 visits (general applicants) & March 2024–June 2025 for Australian citizens/PR & NZ citizens.
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Stephen Bartlett @bartlettquantum.bsky.social · 10/12/2024
Cosmos Mag has my take on today’s Google QEC result in @natureportfolio.bsky.social Awesome result everyone! #quantum cosmosmagazine.com/science/phys...
cosmosmagazine.com
Google’s quantum computer takes major leap forward
Google Quantum AI has managed a new milestone in quantum computing, with chips that can correct errors below a “critical threshold”.
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