Small G-varieties (with A. Regeta and S. Zimmermann)

[pdf]  https://arxiv.org/abs/2009.05559 

Perpetuants: A lost treasure (with C. Procesi)

IRMN, Vol. 2021, No. 5, pp. 3597-3632
[pdf]  http://arXiv:1810.01131v3

Covariants, invariant subsets, and first integrals (with F. Grosshans)

EPIGA 2020, vol 24 
[pdf]

Is the affine space determined by its automorphism group? (with A. Regeta and I. van Santen)

IMRN, Vol. 2021, No. 6, pp. 4280-4300
[pdf]  http://arxiv.org/abs/1707.06883

Automorphism groups of affine varieties and a characterization of affine n-space

Trans. Moscow Math. Soc. 78 (2017) 171-186 
[pdf]

Automorphisms of the Lie algebra of vector fields (with A. Regeta)

J. Eur. Math. Soc. 19 (2017) 1577-1588 
[pdf]

Invariants and separating morphisms for algebraic groups actions (with E. Dufresne)

Math. Z. 280(1) (2015) 231-255 
[pdf]

Families of groups actions, generic isotriviality, and linearization (with P. Russel)

Transformation Groups 19 (2014) 779-792 
[pdf]

Varieties characterized by their endomorphisms (with R. Andrist). 

Math. Research Letters 21 (2014) 225-233 
[pdf]

Representations with a reduced null cone (with G.W. Schwarz). 

In: Symmetry: Representation Theory and Its Applications (Jeb Willenbring Roger Howe, Markus Hunziker, ed.), Progress in Mathematics, vol. 257, Birkhäuser Boston Inc., 2014, pp. 419–474. 
[pdf]

On Automorphisms of the affine Cremona group (with I. Stampfli). 

Ann. de l'Institut Fourier 63 (2013) 1137-1148 
[pdf]

Degree bounds for separating invariants (with M. Kohls). 

Math. Research Letters, 17 (2010) 10001-10012 
[pdf]

Polarizations and nullcone of representations of reductive groups (with Nolan R. Wallach).

Progress in Math. Vol. 278 (2010) 153-168 
[pdf]