Affiliation  Research Associate (joint in Mathematics
and Statistics), Stanford University 

Office  Littlefield Center, Room 334 

Postal address 
Sequoia Hall, 390 Serra Mall, Stanford, CA  94305 USA 

Phone  6507232957 (Office) 

Fax  6507258977 (Office) 

khare AT universityname DOT edu  
Ph.D.  University of Chicago 
1  Beautiful, Simple, Exact, Crazy: Mathematics in the Real World
(480 pp., with Anna Lachowska)
Yale University Press, 2015.


2  Entry on the BGG Category $\mathcal{O}$, for the Encyclopedia of Mathematics (Michiel Hazewinkel, Editor), Kluwer Academic Publishers. 
Matrix positivity preservers in fixed dimension. I
(with Alexander Belton, Dominique Guillot, and Mihai Putinar)
Advances in Mathematics 298, pages 325–368, 2016. 

Schur polynomials and matrix positivity preservers
(with Alexander Belton, Dominique Guillot, and Mihai Putinar)
(Extended abstract of preceding paper above) 28th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2016), DMTCS Proceedings BC, pages 155–166, 2016. 

Generalized nilCoxeter algebras, cocommutative algebras, and the
PBW property
AMS Contemporary Mathematics (Proceedings of International Conference for Passman), in press, 2016. 

Standard parabolic subsets of highest weight modules
Transactions of the American Mathematical Society, published online, 2016. 

Faces and maximizer subsets of highest weight modules
Journal of Algebra 455, pages 32–76, 2016. (Here is an older, related announcement of some of the results.) 

On Category $\mathcal{O}$ over triangular generalized Weyl
algebras (with Akaki Tikaradze)
Journal of Algebra 449, pages 687–729, 2016. 

Matrix positivity preservers in fixed dimension
(with Alexander Belton, Dominique Guillot, and Mihai Putinar)
Comptes Rendus Mathematique de l'Académie des Sciences 354 no. 2, pages 143–148, 2016. 

Representations of complex semisimple Lie groups and Lie
algebras
Connected at Infinity II: A Selection of Mathematics by Indians (R. Bhatia, C.S. Rajan, and A.I. Singh, Eds.), Texts and Readings in Mathematics (TRIM), Hindustan Book Agency, pages 85–129, 2013. 

Faces of polytopes and Koszul algebras
(with Vyjayanthi Chari and Tim Ridenour)
Journal of Pure and Applied Algebra 216 no. 7, pages 1611–1625, 2012. 

Faces of weight polytopes and a generalization of a theorem of
Vinberg
(with Tim Ridenour)
Algebras and Representation Theory 15 no. 3, pages 593–611, 2012. 

The sum of a finite group of weights of a Hopf algebra
Axioms 1 no. 3, pages 259–290, 2012. (Special issue on: "Hopf Algebras, Quantum Groups and YangBaxter Equations") 

Solutions of several coupled discrete models in terms of
Lamé polynomials of arbitrary order
(with Avinash Khare and Avadh Saxena)
Pramana 79 no. 3, pages 377–392, 2012. 

Center and representations of infinitesimal Hecke algebras of
$\mathfrak{sl}_2$
(with Akaki Tikaradze)
Communications in Algebra 38 no. 2, pages 405–439, 2010. 

Functoriality of the BGG Category $\mathcal{O}$
Communications in Algebra 37 no. 12, pages 4431–4475, 2009. 

Vector spaces as unions of proper subspaces
Linear Algebra and its Applications 431 no. 9, pages 1681–1686, 2009. 

Quantized symplectic oscillator algebras of rank one
(with Wee Liang Gan)
Journal of Algebra 310 no. 2, pages 671–707, 2007. 

Divisibility tests and recurring decimals in Euclidean domains
(final section with Pieter Moree)
JP Journal of Algebra, Number Theory, and Applications (JPANTA) 7 no. 1, pages 1–32, 2007. 

Category $\mathcal{O}$ over the symplectic oscillator algebra
Ph.D. Thesis, University of Chicago, 2006. 

Category $\mathcal{O}$ over a deformation of the symplectic
oscillator algebra
Journal of Pure and Applied Algebra 195 no. 2, pages 131–166, 2005; erratum. 

Divisibility tests
Furman University Electronic Journal of Undergraduate Mathematics (FUEJUM) 3, pages 1–5, 1997. 

A Carlitz–von Staudt type theorem for finite commutative
rings (with Akaki Tikaradze)
Preprint, 2016. 

On the classification of finitedimensional nilCoxeter algebras
over complex reflection groups
Preprint, 2016. 

Axiomatic framework for the BGG Category $\mathcal{O}$
Preprint, 2015 (significant additions and major revisions to an earlier version). 

The covering problem for Chinese rings
Preprint (under revision), 2009. 