PoliMi SIAM Student Chapter

https://sinews.siam.org/Details-Page/living-matter-and-active-cells

Living Matter and Active Cells By Michael Shelley Living things assemble themselves to a remarkable degree in a coordinated and hierarchical manner. A driving question in biology seeks to explore the factors that underlie and guide this astonishing capacity for self-assembly and self-organization, which is also the animating forc...

Data Assimilation and Uncertainty Quantification Techniques Improve Hemodynamic Models By Lina Sorg Accurate models can further researchers’ overall knowledge of cerebrovascular diseases like stroke and extracranial aneurysm, which arise due to issues with blood vessels in the brain (see Figure 1). The Circle of Willis (CoW), which is located at the brain’s base, is the main vesse...

implementations can be highly unstable — small perturbations to their input can cause substantial changes in their output. In SIAM News, Vegard Antun, Nina M. Gottschling, Anders C. Hansen, and Ben Adcock consider this issue in the context of inverse problems in imaging. Check it out: https://sinews.siam.org/Details-Page/deep-learning-in-scientific-computing-understanding-the-instability-mystery

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We recall that PoliMi is going to host the SIAM Conference on Mathematical and Computational Issues in the Geosciences 2021 (GS21), in June 2021!

Higher-order Network Analysis Takes Off, Fueled by Old Ideas and New Data By Austin R. Benson, David F. Gleich, and Desmond J. Higham In 2004, the theme of Mathematics Awareness Month was “the mathematics of networks.” A corresponding SIAM News article dubbed 2004 “The Year of the Network” and predicted that graphs would soon be everywhere. Now, networks and graph...

COVID-19: Models, Mathematics, and Myths By Padmanabhan Seshaiyer, Anuj Mubayi, and Ross MaClean “All models are wrong, but some are useful.” In this quote, British statistician George E.P. Box suggests that while models attempt to predict the performance of certain phenomena, they are subject to limits that may prevent them from repre...

Optimization Theory and Perspectives on the Field of Machine Learning By Manuchehr Aminian The work of Michael Jordan’s (University of California, Berkeley) research group was a highlight of the 2020 SIAM Conference on Mathematics of Data Science (MDS20), which took place virtually earlier this year. The team’s research focuses on the connections between optimizat...

https://sinews.siam.org/Details-Page/from-magnets-to-melt-ponds

From Magnets to Melt Ponds By Kenneth M. Golden, Yiping Ma, Courtenay Strong, and Ivan Sudakov When the snow on top of Arctic sea ice begins to melt in late spring, small pools of water form on the surface. As the melt season progresses, these simply shaped meter-scale pools grow and coalesce into kilometer-scale labyrinths o...

Writing "Learning LaTeX" By David F. Griffiths and Desmond J. Higham The following is a short reflection from the authors of Learning LaTeX, which was first published by SIAM in 1997. The second edition appeared in 2016. This piece is the second installment of a new SIAM News feature called “From the SIAM Bookshelf,” wh...

Lagrange Multiplier as Depth or Pressure By Mark Levi With bicycle season beginning in the Northeastern U.S., I would like to describe a small bike-related observation. It actually has nothing to do with a bicycle’s mechanics; it simply occurred to me when I was riding my bike last fall. While climbing up a steep incline and observing a ...

Modelling Global Outbreaks and Proliferation of COVID-19 By Leon Tribe and Robert Smith? Many of us are experiencing the effects of a pandemic for the first time. We may not be sick, but COVID-19 has disrupted our lives in some manner. From the trivial shortage of toilet paper to massive social and economic upheaval, a microscopic virus is affecting all o...

A Network Model of Immigration and Coexistence By Yao-li Chuang, Tom Chou, and Maria R. D’Orsogna In the summer of 2015, more than one million refugees from the Middle East, Central Asia, and Africa arrived in Europe via dangerous routes across the Mediterranean Sea and the Balkans [7]. German Chancellor Angela Merkel welcomed the newly arrive...