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Christian Bick

@bickmath.bsky.social
196 followers 134 following 46 posts

Dynamics, Networks, and Dynamics. Based at VU Amsterdam but also roaming around Exeter, Munich, and Oxford (family permitting). Personal webpage at www.math.vu.nl/~bick and more social media at linktr.ee/cbick.

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Christian Bick @bickmath.bsky.social · 05/01/2026
Fantastic, well deserved.
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Christian Bick @bickmath.bsky.social · 15/12/2025
Simply: The dynamics themselves do not go away, but making things more generic helps understand how they organize the dynamics more generally.
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Christian Bick @bickmath.bsky.social · 15/12/2025
Not the interactions themselves. Sometimes they are just too special and give rise to extra symmetries.
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Christian Bick @bickmath.bsky.social · 15/12/2025
Let's break some structures imposed by higher-order interactions! We compute how things deform and what remains when continuous symmetries are broken. For now freely available at www.aimsciences.org/article/doi/... (but also at arXiv:2408.02119).
aimsciences.org
Dynamics on invariant tori emerging through forced symmetry breaking in phase oscillator networks
We consider synchrony patterns in coupled phase oscillator networks that correspond to invariant tori. For specific nongeneric coupling, these tori are equilibria relative to a continuous symmetry act...
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Christian Bick @bickmath.bsky.social · 04/11/2025
A summary of the results are now also part of a @oxfordmathematics.bsky.social Research Case Study: www.maths.ox.ac.uk/node/74552
maths.ox.ac.uk
Reducing the dimensions of adaptive networks - a case study by Christian Bick | Mathematical Institute
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Christian Bick @bickmath.bsky.social · 03/11/2025
"Higher-order phase reduction for delay-coupled oscillators beyond the phase-shift approximation" now on the arXiv at arxiv.org/abs/2510.27524.
arxiv.org
Higher-order phase reduction for delay-coupled oscillators beyond the phase-shift approximation
Network interactions between dynamical units are often subject to time delay. We develop a phase reduction method for delay-coupled oscillator networks. The method is based on rewriting the delay-diff...
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Christian Bick @bickmath.bsky.social · 28/10/2025
The nice summary "Reducing the dimensions of adaptive networks" for a broader audience was published alongside the paper at doi.org/10.1063/10.0...
doi.org
Reducing the dimensions of adaptive networks
Framework for decreasing the dimensionality of complex systems facilitates analysis of complexity.
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Christian Bick @bickmath.bsky.social · 28/10/2025
This motivates new mathematical insights into the multiple time scale dynamics of adaptive networks. And opens up questions how constraints and adaptive dependency is realized in real world adaptive networks.
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Christian Bick @bickmath.bsky.social · 28/10/2025
We introduce constraints to the adaptive dynamics as a way to reduce dimensionality. These may be intrinsic, for example, if the adaptation rule is nondirectional. Or they may be forced by a homeostasis mechanism.
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Christian Bick @bickmath.bsky.social · 28/10/2025
Adaptivity is a crucial ingredient of many networked systems, but a key issue is their high-dimensionality. A dense network of N nodes has O(N^2) adaptive connections.
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Christian Bick @bickmath.bsky.social · 28/10/2025
New paper with @math-martens.bsky.social on "Multiple timescale dynamics of network adaptation with constraints" now available Open Access in Chaos: doi.org/10.1063/5.02...
doi.org
Multiple timescale dynamics of network adaptation with constraints
Adaptive network dynamical systems describe the co-evolution of dynamical quantities on the nodes and the dynamics of the network connections themselves. For de
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Reposted by Christian Bick
Dutch Institute for Emergent Phenomena @emergencediep.bsky.social · 19/09/2025
🥼Global South Fellowship! DIEP is co-hosting one fellowship for a researcher from the Global South to work on subjects related to the Research Priority Area: Emergent Phenomena in Society in Amsterdam! 🚨Deadline to apply: 15/11 midnight Please share! More info: www.uva.nl/en/about-the...
uva.nl
Global South Fellowship Scheme
The Global South Plan of the Faculty of Science (FNWI) at the University of Amsterdam (UvA) offers four fellowships to talented scientists from the Global South to visit our Faculty for a few months a...
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Alain Goriely @alaingoriely.bsky.social · 21/10/2025
We just advertised the Hooke Fellowships for exceptional researchers (typically after their first post-doc). You are completely free to set up your own research agenda for three years. RT please my.corehr.com/pls/uoxrecru...
my.corehr.com
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Christian Bick @bickmath.bsky.social · 08/10/2025
Lots of higher-order interactions at the joint @beyondtheedge.network and RUNES workshop at AMU in Marseille this week. Thanks to @alainbarrat.bsky.social and @lordgrilo.bsky.social!
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Christian Bick @bickmath.bsky.social · 30/09/2025
Happening soon with the fantastic @haharrington.bsky.social. Join us!
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Christian Bick @bickmath.bsky.social · 22/09/2025
Ever wondered how many points converge to a heteroclinic network in an aperiodic way? doi.org/10.1080/1468...
doi.org
How many points converge to a heteroclinic network in an aperiodic way?
Homoclinic and heteroclinic connections can form cycles and networks in phase space, which organize global phenomena in dynamical systems. On the one hand, stability notions for (omni)cycles give i...
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Reposted by Christian Bick
BeyondTheEdge @beyondtheedge.network · 08/09/2025
BeyondTheEdge at the School of Complexity on "Higher-order interactions: mechanisms, behaviors, and networks" by our own @lordgrilo.bsky.social and @gin-bianconi.bsky.social with @aliceschwarze.bsky.social, @danielemarinazzo.bsky.social. Great perspectives! www.beyondtheedge.network/articles/bey...
beyondtheedge.network
BeyondTheEdge goes to Sicily
BeyondTheEdge researchers participated in the School of Complexity on
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Christian Bick @bickmath.bsky.social · 28/08/2025
Fun collaborative project with Istvan Z. Kiss (London) and Peter Simon to understand how higher-order interactions affect the dynamics of contagion processes now out in J Math Bio: doi.org/10.1007/s002...
doi.org
Decoding how higher-order network interactions shape contagion dynamics - Journal of Mathematical Biology
Complex contagion models that involve contagion along higher-order structures, such as simplicial complexes and hypergraphs, yield new classes of mean-field models. Interestingly, the differential equ...
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Christian Bick @bickmath.bsky.social · 28/08/2025
I am extremely excited that my Istvan Z. Kiss number now is one with multiplicity 2!
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Christian Bick @bickmath.bsky.social · 12/08/2025
Going #BeyondTheEdge in Aachen! Great fun catching up with @beyondtheedge.network colleagues at the HOOC workshop organized by M Schaub: conf.netsci.rwth-aachen.de
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Christian Bick @bickmath.bsky.social · 14/07/2025
"Free yourself with constraints" is a good summary of the work.
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Christian Bick @bickmath.bsky.social · 14/07/2025
Adaptive network dynamics are too high dimensional? Constrain! Or maybe adaptation may be naturally constrained to low-dimensional dynamics? Joint work with @math-martens.bsky.social now on the arXiv at arxiv.org/abs/2507.06359.
arxiv.org
Multiple Timescale Dynamics of Network Adaptation with Constraints
Adaptive network dynamical systems describe the co-evolution of dynamical quantities on the nodes as well as dynamics of the network connections themselves. For dense networks of many nodes, the resul...
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Christian Bick @bickmath.bsky.social · 30/06/2025
Maybe I should use generative AI to plot any vector field in the style of ancient nails...
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Christian Bick @bickmath.bsky.social · 28/06/2025
Ancient vector fields excavated close to Dynamics Days Europe 2025 in Thessaloniki. It was a fun conference (just too short), see you in Lisbon next year!
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Christian Bick @bickmath.bsky.social · 23/06/2025
If you couple two systems with bistability between oscillations of distinct effective frequencies, you have to make them different for the distinct states to synchronize in frequency. Some theory and experiments now in Science Advances. doi.org/10.1126/scia...
doi.org
Frequency synchronization induced by frequency detuning
Analyses and experiments on multistable networks show that frequency detuning can promote synchronization.
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Christian Bick @bickmath.bsky.social · 09/06/2025
Indeed, great to see so many of you! And of course thanks to @andai.bsky.social and @piratepeel.bsky.social for making NetSci 2025 happen.
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BeyondTheEdge @beyondtheedge.network · 06/06/2025
Can a network be physically be a graph but effectively be a hypergraph? Tiago Pereira is speaking about emergent hypernetworks in the focus session “Network Dynamical Systems” at @netsciconf.bsky.social.
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Christian Bick @bickmath.bsky.social · 04/06/2025
Come to the Focus Session "Network Dynamical Systems" at @netsciconf.bsky.social Friday afternoon for a free copy of Bear Networks! www.beyondtheedge.network/resources/be... #NetSci2025
beyondtheedge.network
Bear Networks
BeyondTheEdge publication: Bear Networks, mathematics of networks introduced by soccer-loving bears
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Christian Bick @bickmath.bsky.social · 30/05/2025
Join us July 9-11 at the Amsterdam Center for Dynamics and Computation to celebrate dynamical systems theory and application as well as two 0 mod 10 birthdays! Register now at www.amsterdam-dynamics.nl/zero-mod-ten/
amsterdam-dynamics.nl
0 mod 10 workshop
We are excited to announce a Workshop on Dynamical Systems at the Amsterdam Center of Dynamics and Computation of the Vrije Universiteit Amsterdam. The workshop, organised by Chris Bick and Bob Rink, ...
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Oxford Mathematics @oxfordmathematics.bsky.social · 28/05/2025
You've got friends round for coffee and cake. There are seven of you. Trouble is, you've made a square cake. How do you make sure everyone receives an equal share? Dominic has his cake and they all eat it.
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Christian Bick @bickmath.bsky.social · 28/04/2025
About a week left to apply (through May 5) for a fully-funded PhD position on the collective dynamics on networks. Come to Amsterdam to join the Emergence at All Scales consortium led by @emergencediep.bsky.social. Please share!
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BeyondTheEdge @beyondtheedge.network · 23/04/2025
Bear Networks at the Dutch Mathematical Congress www.beyondtheedge.network/articles/bea...
beyondtheedge.network
Bear Networks at the Dutch Mathematical Congress
BeyondTheEdge researcher Raffaella Mulas spoke about outreach at the Dutch Mathematical Congress
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Christian Bick @bickmath.bsky.social · 19/04/2025
Great fun, say hi!
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Christian Bick @bickmath.bsky.social · 11/04/2025
With red light sabers?
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BeyondTheEdge @beyondtheedge.network · 09/04/2025
Fantastic to have our own @lordgrilo.bsky.social for a visit in the NL! Join his seminar if you can.
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Dutch Institute for Emergent Phenomena @emergencediep.bsky.social · 07/04/2025
👩‍👩‍👧‍👧 Open PhD position in collective dynamics on networks at @vuamsterdam.bsky.social ! ⏳ As part of the Emergence at All Scales consortium, positions are gradually opening. Please share and forward to potential candidates! Deadline to apply: 5/05 More info: www.d-iep.org/openeaasposi...
d-iep.org
DIEP | Dutch Institute for Emergent Phenomena
Open positions in the Emergence at All Scales consortium
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Christian Bick @bickmath.bsky.social · 01/04/2025
Come join the Amsterdam Center for Dynamics and Computation! Bob Rink and I are recruiting a PhD student to work on network dynamics as part of the consortium Emergence at All Scales (www.d-iep.org/eaas). Apply by May 5, 2025 through workingat.vu.nl/vacancies/ph...
workingat.vu.nl
Vacancy — PhD position in collective dynamics on networks
Do you have an inquisitive mind and a passion for mathematics or physics? Please apply for a PhD position at Vrije Universiteit Amsterdam.
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Christian Bick @bickmath.bsky.social · 01/04/2025
Maybe we should have a sponsorship package for this?
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Christian Bick @bickmath.bsky.social · 27/03/2025
About a week left to apply to join the Amsterdam Center for Dynamics and Computation as a postdoc!
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Christian Bick @bickmath.bsky.social · 23/03/2025
Join us for a workshop at the Amsterdam Center for Dynamics and Computation of the Vrije Universiteit Amsterdam on Jul 9-11, 2025 to celebrate progress in dynamical systems! More information at amsterdam-dynamics.nl/zero-mod-ten
amsterdam-dynamics.nl
0 mod 10 workshop
We are excited to announce a Workshop on Dynamical Systems at the Amsterdam Center of Dynamics and Computation of the Vrije Universiteit Amsterdam. The workshop, organised by Chris Bick and Bob Rink, ...
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Reposted by Christian Bick
BeyondTheEdge @beyondtheedge.network · 19/03/2025
Join us next Tuesday for the next BeyondTheEdge seminar with Prof. Renaud Lambiotte (University of Oxford) 🔬 Title: Consensus and Random Walks on Higher-Order Networks 📅 Date & Time: March 25th, 2-3pm (CET) Link: www.beyondtheedge.network/event/semina...
beyondtheedge.network
BeyondTheEdge Seminar: Renaud Lambiotte
Renaud Lambiotte (University of Oxford) speaks in the BeyondTheEdge Seminar
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Christian Bick @bickmath.bsky.social · 06/03/2025
The Amsterdam Center for Dynamics and Computation (www.amsterdam-dynamics.nl) at @vuamsterdam.bsky.social is recruiting a 2-year postdoc in dynamical systems. Applications are accepted through Fri April 4, 2025 at workingat.vu.nl/vacancies/po.... Please share!
workingat.vu.nl
Vacancy — Postdoc in Dynamical Systems
Do you have an inquisitive mind and a passion for dynamical systems? Please apply for a Postdoctoral position at Vrije Universiteit Amsterdam.
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Christian Bick @bickmath.bsky.social · 22/02/2025
Kuramoto oscillators + inertia + symmetry = global symmetric bifurcations organizing chimeras. Work with Pete Ashwin, available open access at doi.org/10.1007/s003....
doi.org
Global Bifurcations Organizing Weak Chimeras in Three Symmetrically Coupled Kuramoto Oscillators with Inertia - Journal of Nonlinear Science
Frequency desynchronized attractors cannot appear in identically coupled symmetric phase oscillators because “overtaking" of phases cannot occur. This restriction no longer applies for more general id...
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BeyondTheEdge @beyondtheedge.network · 04/02/2025
Join us TODAY for the first @beyondtheedge.bsky.social seminar! BeyondTheEdge PhD student Cyril Rommens will host Ginestra Bianconi at 15h CET, details at www.beyondtheedge.network/event/semina...
beyondtheedge.network
BeyondTheEdge Seminar: Ginestra Bianconi
Ginestra Bianconi (QMUL) speaks in the BeyondTheEdge Seminar
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BeyondTheEdge @beyondtheedge.network · 28/01/2025
Join us! The BeyondTheEdge Seminar Series kicks off: Ginestra Bianconi (QMUL) Tue, Feb 4, 2025 at 15h CET www.beyondtheedge.network/event/semina... Eddie Nijholt (USP São Carlos) Thur, Feb 27, 2025 at 15h CET www.beyondtheedge.network/event/semina...
beyondtheedge.network
BeyondTheEdge Seminar: Ginestra Bianconi
Ginestra Bianconi (QMUL) speaks in the BeyondTheEdge Seminar on Jan 16, 2025
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Alain Goriely @alaingoriely.bsky.social · 18/01/2025
Do we know the number of neurons in the human brain? A typical value cited in the literature is 86 billion. However, as I argue in this essay, the data does not justify this number and we do not have yet a satisfactory answer academic.oup.com/brain/advanc...
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BeyondTheEdge @beyondtheedge.network · 09/01/2025
Join us for the inaugural BeyondTheEdge Seminar by Ginestra Bianconi (QMUL) on Thur, Jan 16 at 15h CET! More information at www.beyondtheedge.network/event/semina...
beyondtheedge.network
BeyondTheEdge Seminar: Ginestra Bianconi
Ginestra Bianconi (QMUL) speaks in the BeyondTheEdge Seminar on Jan 16, 2025
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Christian Bick @bickmath.bsky.social · 24/12/2024
I am intrigued by the (approximate) symmetries. In that spirit, have enjoyable holidays and all the best for 2025!
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Christian Bick @bickmath.bsky.social · 16/12/2024
Tempted to ask generative AI to turn the torus into Mona Lisa.
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Christian Bick @bickmath.bsky.social · 16/12/2024
Clearly: The epsilon-neighborhoods of two points on the two-dimensional torus.
White board sketch
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