Ueber eine Eigenschaft gewisser linearer irreductibler Differentialgleichungen
Strict measure rigidity for unipotent subgroups of solvable groups.
Rigid reparametrizations and cohomology for horocycle flows.
Invariant Measures and Orbit Closures for Unipotent Action on Homogeneous Spaces (Survey).
An Isomorphism of Infinite Galois Theory
Viene costruito un esplicito isomorfismo tra due diverse descrizioni del gruppo di Galois relativo ad un ampliamento infinito di Galois di un campo finito.
Nonlinear optimization using the generalized reduced gradient method
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