24 citations · 24 across the 2 of their papers we have counts for
2 papers
math.CA2004★ 24 cited
On rational approximation of algebraic functions
Julius Borcea, Rikard Bögvad, Boris Shapiro
We construct a new scheme of approximation of any multivalued algebraic function by a sequence of rational functions. The latter sequence is…
math.AG2004
Geometric interplay between function subspaces and their rings of differential operators
Rikard Bögvad, Rolf Källström
We study, in the setting of algebraic varieties, finite-dimensional spaces of functions V that are invariant under a ring D^V of differential operators, and give conditions under w…