First presenter Co-presenter(s)
Name :  Doru Stefanescu * Name:   
E-mail: stef@rms.unibuc.ro E-mail:  
Affiliation: University of Bucharest Name:   
Department:   E-mail:    
City: Name:   
State/Province:   E-mail:    
Country: Romania Name:   
Talk
Number:		 09-02  E-mail:    
Session: 9- Symbolic and Numeric Computation Schedule:
 
Room:		 Saturday, 9:00
 
B-3432
Related website:  
Title of
presentation:		 Improved methods for computation of bounds for positive polynomial roots
Abstract:

We discuss applications of some new results on univariate polynomials with real coefficients to the computation of bounds for positive roots. The computation of such bounds is a key step in CF_algorithms for real root isolation. We study the optimality and discuss strategies for improving the computation of upper and lower bounds. Our results are compared with classical methods and with results of Kioustelidis, Stefanescu and Akritas-Strzebonski-Vigklas.