I am a postdoctoral scholar at the Center for the Mathematics of Information in the department of Computing and Mathematical Sciences at Caltech.

Before coming to Caltech, I was a student at UC Berkeley, where I submitted my dissertation in August 2014. Even before that, I did my undergraduate studies in computer science at IIT Kanpur.

**Email**: piyushsr (at) cs (dot) berkeley (dot) edu, piyushs (at) caltech (dot) edu.

## Papers

Click here for a list categorized by subjects.

**Evolutionary dynamics in finite populations mix rapidly**.

Ioannis Panageas, Piyush Srivastava and Nisheeth K. Vishnoi.**SODA 2016.****Symbolic integration and the complexity of computing averages**.

Leonard J. Schulman, Alistair Sinclair and Piyush Srivastava.**FOCS 2015.**[Preprint].**Spatial mixing and the connective constant: Optimal bounds**.

Alistair Sinclair, Piyush Srivastava, Daniel Štefankovič and Yitong Yin.**SODA 2015.**[arXiv].

*Probability Theory & Related Fields*, to appear (March 2016).**Spatial mixing and approximation algorithms for graphs with bounded connective constant**.

Alistair Sinclair, Piyush Srivastava and Yitong Yin.**FOCS 2013.**[arXiv].**Lee-Yang theorems and the complexity of computing averages**.

Alistair Sinclair and Piyush Srivastava.**STOC 2013.**[arXiv].

*Comm. Math. Phys.***329**(3), pp. 827–858. August 2014.**A finite population model of molecular evolution**.

Narendra M. Dixit, Piyush Srivastava, and Nisheeth K. Vishnoi.

*J. Comp. Biol.***19**(10), pp. 1176–1202. October 2012.**Approximation algorithms for two-state anti-ferromagnetic spin systems**.

Alistair Sinclair, Piyush Srivastava, and Marc Thurley.**SODA 2012.**[arXiv].

*J. Stat. Phys.***155**(4), pp. 666–686. March 2014.

## Dissertation

*Counting and correlation decay in spin systems*. August 2014, UC Berkeley.

## Notes

Click here for details of these notes.

**Approximating the hard core partition function with negative activities**. April, 2015.**A simplified proof of a Lee-Yang type theorem**, with Mario Szegedy. July, 2014. [arXiv].**The Lee-Yang theory of phase transitions**. October, 2013.**Inferring graphical structures**, with Di Wang. May, 2013.