Mathematics
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TwoSided Weak Submodularity for Matroid Constrained Optimization and Regression
(2022)We study the following problem: Given a variable of interest, we would like to find a best linear predictor for it by choosing a subset of k relevant variables obeying a matroid constraint. This problem is a natural ... 
Disorder in Ca2+ Release Unit Locations Confers Robustness but Cuts Flexibility of Heart Pacemaking
(Rockefeller University Press, 20220905) 
Euler characteristic surfaces
(20210101) 
Explicit subconvexity for GL(2)
(202207) 
Magnitude meets persistence. Homology theories for filtered simplicial sets
The Euler characteristic is an invariant of a topological space that in a precise sense captures its canonical notion of size, akin to the cardinality of a set. The Euler characteristic is closely related to the homology ... 
A topological perspective on weather regimes
(Springer, 20220706)It has long been suggested that the midlatitude atmospheric circulation possesses what has come to be known as `weather regimes', loosely categorised as regions of phase space with aboveaverage density and/or extended ... 
New horizons for fundamental physics with LISA
(202212) 
Mapping and determinants of consumption of egg and/or flesh foods and zero vegetables or fruits among young children in SSA
(20220616)Zero vegetable or fruit and egg and/or flesh foods are the latest indicators for assessing infant and young child feeding practices. Understanding national and subnational heterogeneity and regional clustering in children ... 
The Deep Parametric PDE Method and Applications to Option Pricing
(Elsevier, 20220702) 
Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
(American Physical Society, 20220502)The ongoing COVID19 pandemic is the first epidemic in human history in which digital contact tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive for a ... 
Anomalous diffusion and asymmetric tempering memory in neutrophil chemotaxis.
(202205)The motility of neutrophils and their ability to sense and to react to chemoattractants in their environment are of central importance for the innate immunity. Neutrophils are guided towards sites of inflammation following ... 
A simple theoretical model for lags and asymmetries of surface temperature
(MDPI, 20210511)Here, we study three fundamental climatic phenomena: The seasonal lag, the diurnal lag, and the asymmetry of daily temperature variation. We write a nonlinear ODE based on an energy balance for surface temperature and ...