On the Isoenergetical Non-Degeneracy of the Problem of two Centers of Gravitation

* Partialy supported by contract MM 523/95 with Ministry of Science and Technologies of Republic of Bulgaria.

Anomalous Singularities for Hyperbolic Equations with Degeneracy of Infinite Order

2002 Mathematics Subject Classification: 35L80

On Thom Polynomials for A4(−) via Schur Functions

2000 Mathematics Subject Classification: 05E05, 14N10, 57R45.