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# Reyer Sjamaar

Professor

### Departments/Programs

- Mathematics

### Graduate Fields

- Mathematics

## Research

Symplectic geometry

## Courses

### Fall 2020

- MATH 1920 : Multivariable Calculus for Engineers
- MATH 4900 : Supervised Research
- MATH 4901 : Supervised Reading

## Publications

- Character formulæ and GKRS multiplets in equivariant K-theory (with G. Landweber), Selecta Math. (N.S.) 19 (2013), no. 1, 49–95.
- Divided differences and the Weyl character formula in equivariant K-theory (with M. Harada and G. Landweber), Math. Res. Lett. 17 (2010), no. 3, 507–527.
- Torsion and abelianization in equivariant cohomology (with T. Holm), Transform. Groups 13 (2008), no. 3–4, 585–615.
- Group-valued implosion and parabolic structures (with J. Hurtubise and L. Jeffrey), Amer. J. Math. 128 no. 1 (2006), 167–214.
- Convexity properties of Hamiltonian group actions (with V. Guillemin), CRM Monograph Series 26, American Mathematical Society, Providence, RI, 2005.