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> Artigos em Revistas Internacionais
Linear Operators Preserving the Numerical Range (Radius) on Triangular Matrices
Li, CK; Semrl, P; Soares, G
Linear & Multilinear Algebra, 48(4) (2001), 281-292
http://dx.doi.org/10.1080/03081080108818675
CEMAT
- Center for Computational and Stochastic Mathematics
Instituto Superior Têcnico
Faculdade de Ciências
Universidade de Lisboa