# Talks

Here are some of the talks that I have given in the past, or will give in the near future. Not all talks listed here.

- TBD, Amsterdam, September 2024
- TBD, Reyjkyavik, September 2024
- Colloquium: New advances in computer assisted number theory and arithmetic geometry, Potsdam, May 2024
- Conference on Modularity, TBD, GGI Florence, May 2024
- The Siegel-Weil theorem, TU Vienna, April 2024
- Eisenstein series over generic groups, and physical applications, Uni Vienna, April 2024
- Analytic number theory techniques for the applied mathematician: Rational point counts to Feynman integrals, Leipzig, March 2024
- Arithmetic structures in physics, U.Montpellier, March 2024
- Algebraic and arithmetic aspects of abelian varieties, (Potsdam Math Dept, Feb 2024)
- Arithmetic structures in physics, (AEI Potsdam, Feb 2024)
- Introduction to the Birch & Swinnerton-Dyer Conjecture, (Cambridge, Oct 2023)
- Hyperelliptic curve invariants, Siegel modular functions and applications, (Cambridge, Oct 2023)
- The Katz-Sarnak Philisophy, (Tokyo, Apr 2023)
- Gravitational path integrals for N = 4 black holes, (IISc Bangalore, Apr 2023)
- Lectures on automorphic forms and L-functions, (ICTS Bangalore, Apr 2023)
- Gravitational path integrals for N = 4 black holes from siegel modular forms, (Caltech, Dec 2022)
- Zeta and L-functions in physics, (Lehigh, Nov 2022)
- Hilbert modular forms, exceptional modular forms and blackholes over the octonions (Cornell, Nov 2022)
- Noether-Lefschetz theory and counting nodal curves on K3 surfaces, (Stony Brook, Nov 2022)
- Application of mock modular forms in string theory, (Stony Brook, Nov 2022)
- Hilbert modular forms, Niemeier Lattices and Octonionic black holes, (Trieste, June 2022)
- Mock modular symmetry from supergravity, (LPHTE/Institut Henri Poincare, June 2022)
- BPS Partition Functions: From physics, to number theory, to geometry, (Hannover, May 2022) (Riemann Lecture)
- Hilbert modular forms, Niemeier Lattices and Octonionic black holes, (Tokyo, May 2022)
- The origin of mock modular forms in supergravity, (DESY Hamburg, May 2022)
- An introduction to moonshine and vertex operator algebras, (Hannover, Apr 2022)
- An introduction to wall crossing and Stokes phenomena, (Hannover, Apr 2022)
- An introduction to topological modular forms, N = 1 VOA’s and error correction codes, (Lisbon, Dec 2021)
- An introduction to topological modular forms, N = 1 VOA’s and error correction codes, (Vienna, Nov 2021)
- Mock modular black hole entropy from supergravity, (Munich, Nov 2021)
- Mock modular forms from supergravity (Nagoya, Oct 2021)
- Generalized Siegel-Weil theorem and holography (Lisbon, Sep 2021)
- Generalized Siegel-Weil formula, 3d Gravity, & Chern-Simons invariants (Vienna, Jun 2021)
- Introduction to moonshine (Istanbul, Dec 2020)
- Supersymmetric localization and BPS state counting in SCFTs (IPMU, Oct 2020)
- Mock modular black hole entropy from half BPS states (Video file) (Lisbon, Sept 2020)
- 1/4 BPS single center degeneracies from 1/2 BPS degeneracies in N = 4 string theory (Video file) (Rutgers, March 2020)
A similar talk was also to be given at SCGP, New York on 17th March 2020 but was cancelled due to the COVID-19 lockdown.

- Dyonic BH degeneracies from Dabholkar-Harvey degeneracies in N = 4 string theory (ICTP Trieste, 2020)
- $\frac{1}{4}$-BPS black hole degeneracies from $\frac{1}{2}$-BPS black hole degeneracies (Stanford, Jan 2020)
- Wall crossing and BPS jumping in string and supersymmetric field theories (TU Wien/Uni Wien, Oct 2019)
- Towards exact holography for stringy black holes (ICTS Bangalore, Oct 2019)
- Towards exact holography for stringy black holes (IISc Bangalore, Oct 2019)
- Arithmetic chaos, zeroes of the Riemann $\zeta(s)$ function and topological recursions (TU Wien, Sept 2019)
- Number theory and geometry for black holes (Stanford University, Mar 2019)
- DMZ revisited: Comments on negative discriminat states and exact black hole degeneracies (University of Amsterdam, Feb 2019)
- Number theoretic aspects of black hole entropy (Uni Wien, Dec 2018)
- Colloquium: "Auguries of Physical Mathematics: What is quantum gravity trying to tell us?" (TU Wien, Nov 2018)
- Dyon wall crossing, automorphic forms and exact entropy of CHL black holes ( MPP Munich , Nov 2018)
- BPS algebras and Moonshine (IST Lisbon , Oct 2018)
- $\Gamma_0(N)$, quantum black holes and wall crossing (IST Lisbon , Oct 2018)
- Exact entropy and Rademacher series for orbifolded BPS black holes @ Moonshine (ESI Vienna, Sep 2018)
- The Mathieu 24 group and the elliptic genus of superconformal field theory @ Workshop on supersymmetric quantum field theories in the non-perturbative regime (GGI Florence, May 2018)
- Calabi-Yau manifolds and sporadic groups ( University of Vienna and IMSc Chennai, Nov 2017; Indian Institute of Science, Dec 2017)
- Some constraints on superconformal field theories with spontaneously broken Euclidean symmetry (TU Wien, Jan 2017)
- Helical black holes in $D=5$ supergravity with higher derivative corrections (Imperial College London, Jan 2016)
- Monsters in flatland [aka Monstrous Moonshine and AdS$_3$ gravity] (Ringberg, July 2016)
- A pedagogical introduction to the black hole information paradox, (MPQ Munich, March 2015)
- What number theory tells us about black holes (Ringberg, July 2015)