A mapping connected with the Schur–Szegő composition

Vladimir Petrov Kostov

Comptes Rendus. Mathématique, Volume 347 (2009) no. 23 p. 1355-1360

The Schur–Szegö composition for real polynomials

Vladimir Petrov Kostov

Comptes Rendus. Mathématique, Volume 346 (2008) no. 5 p. 271-276

The Schur–Szegö composition for hyperbolic polynomials

Vladimir Petrov Kostov

Comptes Rendus. Mathématique, Volume 345 (2007) no. 9 p. 483-488

Very hyperbolic and stably hyperbolic polynomials

Vladimir Petrov Kostov

Comptes Rendus. Mathématique, Volume 339 (2004) no. 3 p. 157-162