Heather Harrington
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haharrington.bsky.social
Heather Harrington
@haharrington.bsky.social
Mathematician interested in data & biology. Max Planck Institute & TU Dresden. Oxford Maths Institute & St John’s College, Oxford. Previously Imperial College London & Umass Amherst.
Deadline for applied topology postdoc in Dresden closes in a week. Please share with early career researchers!
The new @mpi-cbg.de research group leader Daniela Egas Santander is looking for a Postdoctoral Researcher (m/f/d) in Applied Topology for Biology. Apply until November 16th here: careers.mpi-cbg.de/jobs/6002777...
November 9, 2025 at 3:05 PM
Greeted this morning with the blackboard of math discussion— looks like algebra, topology and data— during tea yesterday @csbdresden.bsky.social @mpi-cbg.de
November 5, 2025 at 6:11 AM
Reposted by Heather Harrington
The new @mpi-cbg.de research group leader Daniela Egas Santander is looking for a Postdoctoral Researcher (m/f/d) in Applied Topology for Biology. Apply until November 16th here: careers.mpi-cbg.de/jobs/6002777...
October 24, 2025 at 8:28 AM
Our call for ELBE Visiting Faculty at the Center for Systems Biology Dresden is live with deadline 30 November: www.csbdresden.de/join-us/as-a... Please visit us during your sabbatical!
@mpi-cbg.de @math-mpicbg.bsky.social @csbdresden.bsky.social
As a Visiting Faculty
© 2025 CSBD
www.csbdresden.de
October 31, 2025 at 1:42 PM
Reposted by Heather Harrington
Very grateful to work w/ @yutian.bsky.social @hirokisayama.bsky.social Renaud Lambiotte for this foundational work! It made us rethink what constitutes a "unit" of interaction, leading to the idea that grouped coherent edges can form a single interaction (matrices). Hope this brings a new angle 🙂.
June 13, 2025 at 7:44 PM
October 1, 2025 at 8:47 AM
Reposted by Heather Harrington
Come fly with us, let's fly, let's fly away.

Full details: www.maths.ox.ac.uk/node/74169
September 26, 2025 at 3:58 PM
Reposted by Heather Harrington
arxiv.org/abs/2509.09886
/The 3D index and Dehn filling/
Daniele Celoria, Craig D. Hodgson, J. Hyam Rubinstein
The 3D index and Dehn filling
We provide a rigorous proof of the Gang-Yonekura formula describing the transformation of the 3D index under Dehn filling a cusp in an orientable 3-manifold. The 3D index, originally introduced by Dim...
arxiv.org
September 15, 2025 at 2:06 AM
Cool paper out by mathematicians studying population dynamics with algebraic geometry @georgysch.bsky.social @mpi-cbg.de @csbdresden.bsky.social @math-mpicbg.bsky.social
New preprint: We study Lotka-Volterra ecological dynamics through computational algebraic geometry. By encoding feasibility & stability on the real Grassmannian, we prove certain ecological networks are mathematically impossible 🧮🌿 arxiv.org/abs/2509.00165
September 3, 2025 at 6:27 PM
Enjoying learning about membrane transport, structural biology and lipids from our Thursday seminar speaker Rich Hite @hitelabmskcc.bsky.social @mpi-cbg.de
August 28, 2025 at 11:11 AM
Reposted by Heather Harrington
Silviana Amethyst from our ASB group is teaching the Computational Algebraic Geometry course at the Gene Golub #SIAM summer school in Montréal (August 4-15th: www.siam.org/programs-ini...). Topics: foundations of, software of, & advances & open problems in computational algebraic geometry 😊. Enjoy!
August 1, 2025 at 12:56 PM
Reposted by Heather Harrington
New pre-print: Probabilistic algorithm for computing all local minimizers of Morse functions on a compact domain - Archive ouverte HAL

📄 Preprint: hal.science/hal-05160251v1

💻 Julia: github.com/gescholt/Glo...

#Optimization #JuliaLang #ScientificComputing #ComputerAlgebra
July 25, 2025 at 12:14 PM
We’re looking for a mathematical research and collaboration manager to join our new initiative of mathematics in a biology institute in Dresden, Germany! @csbdresden.bsky.social @mpi-cbg.de @math-mpicbg.bsky.social

Please share widely: careers.mpi-cbg.de/jobs/5734151...
Mathematical Research & Collaborations Manager (m/f/d) – Max Planck Institut für Molekulare Zellbiologie und Genetik
We are looking for: Mathematical Research & Collaborations Manager (m/f/d), Full Time, Dresden
careers.mpi-cbg.de
July 1, 2025 at 11:18 AM
We are searching for an AI researcher in lab automation, statistical ML and (theoretical) physics AI for bio/med. Expression of interest and nominations welcome!!!
June 26, 2025 at 9:10 PM
Reposted by Heather Harrington
Thanks to @aidadoesmath.bsky.social and Max Wiesmann for organising this Dresden-Leipzig meetup! And for the MTO at @mpi-cbg.de for this beautiful picture of all the attendees.
June 6, 2025 at 2:17 PM
Reposted by Heather Harrington
New interdisciplinary math+bio paper! Mouse liver assembloids model periportal architecture and biliary fibrosis. In vitro assembloids modelling the mouse liver periportal region were built to study processes causing scarring (cholestatic injury/biliary fibrosis) and the shape change this causes.
June 4, 2025 at 12:59 PM
Reposted by Heather Harrington
Awesome new paper in @nature.com from PhD student Benjamin Yang @benjaminojr.bsky.social from the Algebraic Systems Biology Group!
June 4, 2025 at 1:08 PM
Reposted by Heather Harrington
The group of Meritxell Huch @merihuchlab.bsky.social together with the Heather Harrington group @math-mpicbg.bsky.social & @oxfordmathematics.bsky.social develop next-generation organoid model that reconstructs liver architecture to better understand liver disease. www.mpi-cbg.de/news-outreac...
May 29, 2025 at 3:29 PM
Reposted by Heather Harrington
I posted about this paper this a while ago on another website, but figured I'd post it here now that I have a few followers. (Joint with @haharrington.bsky.social, Jacob Leygonie, @uzulim.bsky.social, and Louis Theran).

arxiv.org/abs/2411.08201

1/10
May 27, 2025 at 4:42 PM
Reposted by Heather Harrington
New paper on arXiv! 'Topology across scales on heterogeneous cell data', From Maria Torras Perez, @torrasperez.bsky.social, Heather Harrington @haharrington.bsky.social, et al: arxiv.org/abs/2505.02717
Topology across Scales on Heterogeneous Cell Data
Multiplexed imaging allows multiple cell types to be simultaneously visualised in a single tissue sample, generating unprecedented amounts of spatially-resolved, biological data. In topological data a...
arxiv.org
May 23, 2025 at 12:09 PM
Reposted by Heather Harrington
Outstanding success: 🎉 #TUDresden shines with 5 Clusters of Excellence. @dfg.de & @wissenschaftsrat.de announced that decision today. TUD has impressively proven its claim to be a top university for the 21st century.
ℹ️ tu-dresden.de/tu-dresden/n...
May 22, 2025 at 4:54 PM
Great to meet so many new members of the maths for AI hub. @oxfordmathematics.bsky.social Looking forward to the next conference in June!!!
It’s been a busy first year for the Erlangen AI Hub building our team of talented postdocs! At our Year 2 Kick Off at Oxford Mathematics this week, it was great to bring the hub team together, exchange knowledge and ideas, and share some of the group’s research at the intersection of #maths and #AI
May 21, 2025 at 5:57 PM
Reposted by Heather Harrington
Erlangen AI Hub, unlike the name suggests, is located in England. Join us for a cool conference at the intersection of math and ML.
⏳ Only 10 days to go before registrations close for the Erlangen AI Hub conference on 9-11 June at Queen Mary University of London. Don't miss out! Find out more and register now: erlangenhub.ox.ac.uk/conference-2...
May 13, 2025 at 3:07 PM
First math data project for Vincenzo @mpi-cbg.de @csbdresden.bsky.social
Very excited that my paper "Discrete signature tensors for persistence landscapes" with @haharrington.bsky.social and Daniel Tolosa is now on arXiv! We use discrete signature tensors to vectorise barcodes, and we showcase such approach on a knotted protein dataset.

arxiv.org/abs/2505.02800
Discrete signature tensors for persistence landscapes
Signature tensors of paths are a versatile tool for data analysis and machine learning. Recently, they have been applied to persistent homology, by embedding barcodes into spaces of paths. Among the d...
arxiv.org
May 11, 2025 at 2:14 PM
Very excited that our Oxford members and postdocs on the collaboration grant @mpi-cbg.de @csbdresden.bsky.social @oxfordmathematics.bsky.social joined our research retreat!
Highlights to come from Brunów, Poland, but here we all are! All current and upcoming members. A wonderful couple of days getting to know more about each others’ work. All three groups together: @haharrington.bsky.social, Türkü Özlüm Çelik, and @aidadoesmath.bsky.social 🩵🩵🩵
May 9, 2025 at 8:14 PM