Published papers

• Morse Interpolation for Hamiltonian GKM Spaces, Journal of Differential Geometry 75 (2007) No. 3, 502--523. [PDF]
• Complete Padovan Sequences in Finite Fields, The Fibonacci Quarterly. Vol. 45 (2007) , No. 1, 64--75. (with J. Gil and M. Weiner).
• A GKM Description of the Equivariant Cohomology Ring of a Homogeneous Space, Journal of Algebraic Combinatorics, 23 (2006), 21--41. (with V. Guillemin and T. Holm). [PDF]
• Chains, Subwords, and Fillings: Strong Equivalence of Three Definitions of the Bruhat Order, Electronic Journal of Combinatorics, 13 (1) (2006), #N5. [PDF]
• Parking Functions, Stack-Sortable Permutations, and Spaces of Paths in the Johnson Graph, Electronic Journal of Combinatorics, 9 (2) (2003), #R11. [PDF]
• The Existence of Generating Families for the Cohomology Ring of a Graph, Advances in Mathematics, 174 (2003) No. 1, p. 115-153 (with V. Guillemin). [PDF]
• Combinatorial Formulas for Products of Thom Classes, Proceedings of the Geometry, Mechanics, and Dynamics Workshop, Toronto, August 7-12, 2002, Springer-Verlag, NY (with V. Guillemin). [PDF]
• G-actions on graphs, International Mathematics Research Notes (2001), No. 10, p. 519-542 (with V. Guillemin). [PDF]
• 1-Skeletons, Betti Numbers and Equivariant Cohomology, Duke Mathematical Journal, 107 (2001), No.2, p. 283-349 (with V. Guillemin).
• Equivariant de Rham Theory and Graphs, Asian Journal of Mathematics, 3 (1999), no. 1, p. 49-76. Reprinted in Surveys in Differential Geometry, 7 (2000), p. 221-257 (with V. Guillemin).
• A Characterization of Bi-Invariant Pseudo-Riemannian Metrics on Lie Groups, Studii si Cercetari Matematice, 50 (1998). no. 1-2, p. 111-115.
• Theorems and Problems on Lie Groups (Romanian), Editura Universitatii Bucuresti, 1997 (with L. Nicolescu and G. Pripoae).
• On a theorem of D. Muller (Romanian), Studii si Cercetari Matematice, 47 (1995), no. 3-4, p. 359--363.