Barinder Singh Banwait
About me
Hello! Thanks for visiting!
I'm a postdoctoral fellow in Number Theory at the Interdisziplinäres Zentrum für wissenschaftliches Rechnen at RuprechtKarlsUniversität Heidelberg in Germany.
I spend much of my time these days thinking about Galois representations associated to elliptic curves and modular newforms, and how to compute them in Sage. See my list of publications for more on my mathematical interests.
I've also recently been contributing code and data to the Lfunctions and modular forms database. See my Github for this and various other mathematical coding projects I've been involved in.
I can also be found hangingout on Mathoverflow:
Papers and preprints
 Explicit isogenies of prime degree over quadratic fields. preprint arxiv:2101.02673
, submitted. 2021
 Examples of abelian surfaces failing the localglobal principle for isogenies. Research in Number Theory, 7(55) 2021.
 Delpezzo surfaces over finite fields and their Frobenius traces, with Francesc Fité and Daniel Loughran. Mathematical Proceedings of the Cambridge Philosophical Society, 167(1), 3560. 2019
 Tetrahedral elliptic curves and the localglobal principle for isogenies, with John Cremona. Algebra and Number Theory, 8(5), 12011229. 2014

On some Local to Global Phenomena for Abelian Varieties. PhD Thesis, University of Warwick, 2013.
In preparation
 Computing nonsurjective primes associated to Galois representations of genus 2 curves, with A. Brumer, H. J. Kim, Z. Klagsbrun, J. Mayle, P. Srinivasan and I. Vogt.
 Cyclic Isogeny degrees over quadratic fields, with O. Adascalitei and F. Najman.
 Explicit isogenies of prime degree over number fields, with M. Derickx.
 Sign changes in Fourier coefficients of Bianchi modular forms, with K. Krishnarjun.
Contact
Email address: barinder.s.banwait  the AT symbol  gmail.com
My PGP public key.
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