Duffner, M. Graça; Silva, Fernando C. On the existence of unimodular matrices with a prescribed submatrix. (English) Zbl 1352.15033 Linear Algebra Appl. 515, 321-330 (2017). MSC: 15B33 15A83 PDFBibTeX XMLCite \textit{M. G. Duffner} and \textit{F. C. Silva}, Linear Algebra Appl. 515, 321--330 (2017; Zbl 1352.15033) Full Text: DOI
Iglésias, Laura; Silva, Fernando C. Weakly spectrally complete pair of matrices. (English) Zbl 1341.15007 Linear Multilinear Algebra 64, No. 5, 942-950 (2016). Reviewer: Drahoslava Janovská (Praha) MSC: 15A18 15A23 PDFBibTeX XMLCite \textit{L. Iglésias} and \textit{F. C. Silva}, Linear Multilinear Algebra 64, No. 5, 942--950 (2016; Zbl 1341.15007) Full Text: DOI Link
Iglésias, Laura; Silva, Fernando C. Spectral and weak polynomial completeness for the product of nonsingular matrices. (English) Zbl 1333.15005 Linear Multilinear Algebra 63, No. 10, 1937-1946 (2015). Reviewer: Mihail Voicu (Iaşi) MSC: 15A18 15A23 PDFBibTeX XMLCite \textit{L. Iglésias} and \textit{F. C. Silva}, Linear Multilinear Algebra 63, No. 10, 1937--1946 (2015; Zbl 1333.15005) Full Text: DOI
Duffner, M. Graça; Silva, Fernando C. On the interlacing inequalities for invariant factors. (English) Zbl 1321.15049 Linear Algebra Appl. 486, 443-448 (2015). MSC: 15B33 15A83 PDFBibTeX XMLCite \textit{M. G. Duffner} and \textit{F. C. Silva}, Linear Algebra Appl. 486, 443--448 (2015; Zbl 1321.15049) Full Text: DOI
Roca, A.; Silva, F. C. Pencils with prescribed constant subpencils over arbitrary fields. (English) Zbl 1286.15013 Linear Algebra Appl. 445, 138-161 (2014). MSC: 15A22 15A83 PDFBibTeX XMLCite \textit{A. Roca} and \textit{F. C. Silva}, Linear Algebra Appl. 445, 138--161 (2014; Zbl 1286.15013) Full Text: DOI
Roca, A.; Silva, F. C. Pencils with prescribed constant subpencils. (English) Zbl 1247.15025 Linear Algebra Appl. 436, No. 9, 3315-3336 (2012). Reviewer: Nicholas Karampetakis (Thessaloniki) MSC: 15A83 15A22 15A21 PDFBibTeX XMLCite \textit{A. Roca} and \textit{F. C. Silva}, Linear Algebra Appl. 436, No. 9, 3315--3336 (2012; Zbl 1247.15025) Full Text: DOI
Silva, Fernando C.; Simões, Rita Row and column rank partitions under small perturbations. (English) Zbl 1248.15002 Linear Multilinear Algebra 60, No. 1, 1-9 (2012). Reviewer: Xiangqian Guo (Waterloo) MSC: 15A03 05B35 PDFBibTeX XMLCite \textit{F. C. Silva} and \textit{R. Simões}, Linear Multilinear Algebra 60, No. 1, 1--9 (2012; Zbl 1248.15002) Full Text: DOI
Iglésias, Laura; Santa-Clara, Catarina; Silva, Fernando C. Unified min-max and interlacing theorems for linear operators. (English) Zbl 1233.47014 Linear Multilinear Algebra 59, No. 6, 651-669 (2011). Reviewer: Carsten Michels (Oldenburg) MSC: 47B06 06C05 16P70 15A18 47A05 PDFBibTeX XMLCite \textit{L. Iglésias} et al., Linear Multilinear Algebra 59, No. 6, 651--669 (2011; Zbl 1233.47014) Full Text: DOI Link
Matos, Isabel T.; Silva, Fernando C. Completion problems for real matrices. II. (English) Zbl 1181.15035 Linear Algebra Appl. 432, No. 1, 180-202 (2010). Reviewer: Qing-Wen Wang (Shanghai) MSC: 15A83 PDFBibTeX XMLCite \textit{I. T. Matos} and \textit{F. C. Silva}, Linear Algebra Appl. 432, No. 1, 180--202 (2010; Zbl 1181.15035) Full Text: DOI
Dodig, Marija; Silva, Fernando C. Controllability of series connections of arbitrarily many linear systems. (English) Zbl 1146.93008 Linear Algebra Appl. 429, No. 1, 122-141 (2008). MSC: 93B05 15A21 93C15 PDFBibTeX XMLCite \textit{M. Dodig} and \textit{F. C. Silva}, Linear Algebra Appl. 429, No. 1, 122--141 (2008; Zbl 1146.93008) Full Text: DOI
Silva, Fernando C.; Simões, Rita On the Lyapunov and Stein equations. II. (English) Zbl 1141.15015 Linear Algebra Appl. 426, No. 2-3, 305-311 (2007). MSC: 15A24 93D05 15A21 PDFBibTeX XMLCite \textit{F. C. Silva} and \textit{R. Simões}, Linear Algebra Appl. 426, No. 2--3, 305--311 (2007; Zbl 1141.15015) Full Text: DOI
Silva, Fernando C.; Simões, Rita On the Lyapunov and Stein equations. (English) Zbl 1104.93047 Linear Algebra Appl. 420, No. 2-3, 329-338 (2007). MSC: 93D05 15B57 PDFBibTeX XMLCite \textit{F. C. Silva} and \textit{R. Simões}, Linear Algebra Appl. 420, No. 2--3, 329--338 (2007; Zbl 1104.93047) Full Text: DOI
Roca, Alicia; Silva, Fernando C. Matrix pencils with a prescribed subpencil. (English) Zbl 1180.15015 Azenhas, Olga (ed.) et al., Mathematical papers in honour of Eduardo Marques de Sá on the occasion of his 60th birthday. Coimbra: Universidade de Coimbra, Departamento de Matemática (ISBN 978-972-8564-43-8/pbk). Textos de Matemática. Série B 39, 125-134 (2006). MSC: 15A22 PDFBibTeX XMLCite \textit{A. Roca} and \textit{F. C. Silva}, Textos Mat., Sér. B 39, 125--134 (2006; Zbl 1180.15015)
Furtado, Susana; Iglésias, Laura; Silva, Fernando C. Eigenvalues of products of matrices. (English) Zbl 1096.15002 Linear Multilinear Algebra 54, No. 5, 343-353 (2006). Reviewer: C. M. da Fonseca (Coimbra) MSC: 15A18 15A23 PDFBibTeX XMLCite \textit{S. Furtado} et al., Linear Multilinear Algebra 54, No. 5, 343--353 (2006; Zbl 1096.15002) Full Text: DOI
Ferreira, Cristina; Silva, Fernando C. Inertia theorems for pairs of matrices. II. (English) Zbl 1107.93027 Linear Algebra Appl. 413, No. 2-3, 425-439 (2006). MSC: 93D15 93C55 15A45 93B60 PDFBibTeX XMLCite \textit{C. Ferreira} and \textit{F. C. Silva}, Linear Algebra Appl. 413, No. 2--3, 425--439 (2006; Zbl 1107.93027) Full Text: DOI
Furtado, Susana; Martins, Enide Andrade; Silva, Fernando C. On similarity invariants of matrix commutators and Jordan products. (English) Zbl 1089.15013 Linear Algebra Appl. 401, 453-466 (2005). Reviewer: Bambina Larato (Bari) MSC: 15A21 15A18 PDFBibTeX XMLCite \textit{S. Furtado} et al., Linear Algebra Appl. 401, 453--466 (2005; Zbl 1089.15013) Full Text: DOI
Ferreira, Cristina; Silva, Fernando C. On the stabilization of linear discrete-time systems. (English) Zbl 1107.93026 Linear Algebra Appl. 390, 7-18 (2004). Reviewer: Leiba Rodman (Williamsburg) MSC: 93D15 15A45 93C55 PDFBibTeX XMLCite \textit{C. Ferreira} and \textit{F. C. Silva}, Linear Algebra Appl. 390, 7--18 (2004; Zbl 1107.93026) Full Text: DOI
Ferreira, Cristina; Silva, Fernando C. Inertia theorems for pairs of matrices. (English) Zbl 1060.93071 Linear Algebra Appl. 381, 37-52 (2004). Reviewer: Leiba Rodman (Williamsburg) MSC: 93D05 93D15 15A42 15B57 PDFBibTeX XMLCite \textit{C. Ferreira} and \textit{F. C. Silva}, Linear Algebra Appl. 381, 37--52 (2004; Zbl 1060.93071) Full Text: DOI
Aujla, Jaspal Singh; Silva, Fernando C. Weak majorization inequalities and convex functions. (English) Zbl 1031.47007 Linear Algebra Appl. 369, 217-233 (2003). Reviewer: Aleksej Turnšek (Ljubljana) MSC: 47A30 47B15 15A60 PDFBibTeX XMLCite \textit{J. S. Aujla} and \textit{F. C. Silva}, Linear Algebra Appl. 369, 217--233 (2003; Zbl 1031.47007) Full Text: DOI
Cravo, Glória; Silva, Fernando C. The number of nonconstant invariant polynomials of matrices with several prescribed blocks. (English) Zbl 1031.15013 Linear Algebra Appl. 368, 107-116 (2003). Reviewer: Chen Zhijie (Shanghai) MSC: 15A21 PDFBibTeX XMLCite \textit{G. Cravo} and \textit{F. C. Silva}, Linear Algebra Appl. 368, 107--116 (2003; Zbl 1031.15013) Full Text: DOI
Cravo, Glória; Silva, Fernando C. Eigenvalues of matrices with several prescribed blocks. II. (English) Zbl 1030.15010 Linear Algebra Appl. 364, 81-89 (2003). Reviewer: E.Kreyszig (Ottawa) MSC: 15A18 15A29 PDFBibTeX XMLCite \textit{G. Cravo} and \textit{F. C. Silva}, Linear Algebra Appl. 364, 81--89 (2003; Zbl 1030.15010) Full Text: DOI
Martins, Enide Andrade; Silva, Fernando C. On the eigenvalues of Jordan products. (English) Zbl 1020.15008 Linear Algebra Appl. 359, No. 1-3, 249-262 (2003). Reviewer: F.Uhlig (Auburn) MSC: 15A18 15A30 PDFBibTeX XMLCite \textit{E. A. Martins} and \textit{F. C. Silva}, Linear Algebra Appl. 359, No. 1--3, 249--262 (2003; Zbl 1020.15008) Full Text: DOI
Martins, Enide Andrade; Silva, Fernando C. On the invariant polynomials of Jordan products. (English) Zbl 1020.15017 Linear Algebra Appl. 360, 173-189 (2003). Reviewer: John D.Dixon (Ottawa) MSC: 15A30 15A03 15A21 PDFBibTeX XMLCite \textit{E. A. Martins} and \textit{F. C. Silva}, Linear Algebra Appl. 360, 173--189 (2003; Zbl 1020.15017) Full Text: DOI
Furtado, Susana; Iglésias, Laura; Silva, Fernando C. Products of matrices with prescribed spectra and ranks. (English) Zbl 1002.15016 Linear Algebra Appl. 340, No. 1-3, 137-147 (2002). Reviewer: Kim Hang Kim (Montgomery) MSC: 15A29 15A23 15A18 15A03 PDFBibTeX XMLCite \textit{S. Furtado} et al., Linear Algebra Appl. 340, No. 1--3, 137--147 (2002; Zbl 1002.15016) Full Text: DOI
Furtado, Susana; Iglésias, Laura; Silva, Fernando C. Products of real matrices with prescribed characteristic polynomials. (English) Zbl 1001.15007 SIAM J. Matrix Anal. Appl. 23, No. 3, 656-672 (2002). Reviewer: Erich Ellers (Toronto) MSC: 15A23 15A18 15A29 PDFBibTeX XMLCite \textit{S. Furtado} et al., SIAM J. Matrix Anal. Appl. 23, No. 3, 656--672 (2001; Zbl 1001.15007) Full Text: DOI
Cravo, Glória; Dias da Silva, J. A.; Silva, Fernando C. Characteristic polynomials and controllability of partially prescribed matrices. (English) Zbl 0987.15008 Linear Algebra Appl. 335, No. 1-3, 157-166 (2001). Reviewer: Inge Troch (Wien) MSC: 15A29 15A21 15A18 93B60 93B05 PDFBibTeX XMLCite \textit{G. Cravo} et al., Linear Algebra Appl. 335, No. 1--3, 157--166 (2001; Zbl 0987.15008) Full Text: DOI
Furtado, Susana; Martins, Enide Andrade; Silva, Fernando C. On similarity invariants of matrix commutators. (English) Zbl 0984.15009 Linear Algebra Appl. 335, No. 1-3, 81-93 (2001). Reviewer: Rodica Covaci (Cluj-Napoca) MSC: 15A18 15A21 15A27 PDFBibTeX XMLCite \textit{S. Furtado} et al., Linear Algebra Appl. 335, No. 1--3, 81--93 (2001; Zbl 0984.15009) Full Text: DOI
Cabral, Isabel; Silva, Fernando C.; Zaballa, Ion Feedback invariants of a pair of matrices with prescribed columns. (English) Zbl 1049.93038 Linear Algebra Appl. 332-334, 447-458 (2001). Reviewer: Nikolai I. Osetinski (Moskva) MSC: 93C05 15A22 93B25 PDFBibTeX XMLCite \textit{I. Cabral} et al., Linear Algebra Appl. 332--334, 447--458 (2001; Zbl 1049.93038) Full Text: DOI
Matos, Isabel T.; Silva, Fernando C. A completion problem over the field of real numbers. (English) Zbl 0970.15004 Linear Algebra Appl. 320, No. 1-3, 63-77 (2000). Reviewer: Jitka Drkošova (Praha) MSC: 15A18 15A29 PDFBibTeX XMLCite \textit{I. T. Matos} and \textit{F. C. Silva}, Linear Algebra Appl. 320, No. 1--3, 63--77 (2000; Zbl 0970.15004) Full Text: DOI
Araújo, João; Silva, Fernando C. Semigroups of linear endomorphisms closed under conjugation. (English) Zbl 0961.20049 Commun. Algebra 28, No. 8, 3679-3689 (2000). Reviewer: P.Normak (Tallinn) MSC: 20M20 15A04 PDFBibTeX XMLCite \textit{J. Araújo} and \textit{F. C. Silva}, Commun. Algebra 28, No. 8, 3679--3689 (2000; Zbl 0961.20049) Full Text: DOI
Cravo, Glória; Silva, Fernando C. Eigenvalues of matrices with several prescribed blocks. (English) Zbl 0954.15006 Linear Algebra Appl. 311, No. 1-3, 13-24 (2000). Reviewer: E.Kreyszig (Ottawa) MSC: 15A18 15A29 PDFBibTeX XMLCite \textit{G. Cravo} and \textit{F. C. Silva}, Linear Algebra Appl. 311, No. 1--3, 13--24 (2000; Zbl 0954.15006) Full Text: DOI
Silva, Fernando C. On the number of invariant factors of partially prescribed matrices and control theory. (English) Zbl 0961.15006 Linear Algebra Appl. 311, No. 1-3, 1-12 (2000). Reviewer: Valeriu Prepeliţă (Bucureşti) MSC: 15A29 15A22 93B05 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 311, No. 1--3, 1--12 (2000; Zbl 0961.15006) Full Text: DOI
Neto, Orlando; Silva, Fernando C. On the additive version of the rigidity problem for linear representations of a free group. (English) Zbl 0967.20007 Matrices and group representations. Proceedings of a workshop dedicated to Professor Graciano N. de Oliveira on the occasion of his 60th birthday, Coimbra, Portugal, May 6-8, 1998. Coimbra: Univ. de Coimbra, Departamento de Matemática. Textos Mat., Sér. B. 19, 125-128 (1999). MSC: 20C15 15A24 20E45 PDFBibTeX XMLCite \textit{O. Neto} and \textit{F. C. Silva}, in: Matrices and group repesentations. Proceedings of a workshop dedicated to Professor Graciano N. de Oliveira on the occasion of his 60th birthday, Coimbra, Portugal, May 6--8, 1998. Coimbra: Univ. de Coimbra, Departamento de Matemática. 125--128 (1999; Zbl 0967.20007)
Iglésias, Laura; Silva, Fernando C. A note on the unification of min-max and interlacing theorems. (English) Zbl 0968.15009 Matrices and group representations. Proceedings of a workshop dedicated to Professor Graciano N. de Oliveira on the occasion of his 60th birthday, Coimbra, Portugal, May 6-8, 1998. Coimbra: Univ. de Coimbra, Departamento de Matemática. Textos Mat., Sér. B. 19, 105-110 (1999). MSC: 15A42 06C05 16D40 PDFBibTeX XMLCite \textit{L. Iglésias} and \textit{F. C. Silva}, in: Matrices and group repesentations. Proceedings of a workshop dedicated to Professor Graciano N. de Oliveira on the occasion of his 60th birthday, Coimbra, Portugal, May 6--8, 1998. Coimbra: Univ. de Coimbra, Departamento de Matemática. 105--110 (1999; Zbl 0968.15009)
Neto, O.; Silva, F. C. On the recognition and rigidity problems for sums of matrices. (English) Zbl 0942.15007 Linear Algebra Appl. 293, No. 1-3, 73-84 (1999). Reviewer: J.D.Dixon (Ottawa) MSC: 15A21 PDFBibTeX XMLCite \textit{O. Neto} and \textit{F. C. Silva}, Linear Algebra Appl. 293, No. 1--3, 73--84 (1999; Zbl 0942.15007) Full Text: DOI
Furtado, Susana; Silva, Fernando C. On the characteristic polynomial of matrices with prescribed rows. (English) Zbl 0940.15013 Linear Algebra Appl. 293, No. 1-3, 51-72 (1999). Reviewer: Vaclav Burjan (Praha) MSC: 15A21 93B05 PDFBibTeX XMLCite \textit{S. Furtado} and \textit{F. C. Silva}, Linear Algebra Appl. 293, No. 1--3, 51--72 (1999; Zbl 0940.15013) Full Text: DOI
Silva, F. C. (ed.); Dias da Silva, J. A. (ed.); Zaballa, I. (ed.) Special issue: Invariant factors. Based on the workshop on invariant factors of matrices, Lisbon, Portugal, September 16–18, 1996. (English) Zbl 0928.00028 Linear Multilinear Algebra 46, No. 1-2, 164 p. (1999). MSC: 00B25 15-06 PDFBibTeX XMLCite \textit{F. C. Silva} (ed.) et al., Linear Multilinear Algebra 46, No. 1--2, 164~p. (1999; Zbl 0928.00028) Full Text: DOI
Furtado, Susana; Silva, Fernando C. Embedding a regular subpencil into a general linear pencil. (English) Zbl 0943.15007 Linear Algebra Appl. 295, No. 1-3, 61-72 (1999). Reviewer: W.Wiȩsław (Wrocław) MSC: 15A22 PDFBibTeX XMLCite \textit{S. Furtado} and \textit{F. C. Silva}, Linear Algebra Appl. 295, No. 1--3, 61--72 (1999; Zbl 0943.15007) Full Text: DOI
Silva, Fernando C. On the eigenvalues of matrices with prescribed upper triangular part. (English) Zbl 0935.15005 Linear Multilinear Algebra 46, No. 1-2, 117-138 (1999). Reviewer: Váslaw Burjan (Praha) MSC: 15A18 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 46, No. 1--2, 117--138 (1999; Zbl 0935.15005) Full Text: DOI
Neto, O.; Silva, F. C. Singular regular differential equations and eigenvalues of products of matrices. (English) Zbl 0935.15006 Linear Multilinear Algebra 46, No. 1-2, 145-164 (1999). Reviewer: Valeriu Prepeliţă (Bucureşti) MSC: 15A18 34A30 20G05 15A29 PDFBibTeX XMLCite \textit{O. Neto} and \textit{F. C. Silva}, Linear Multilinear Algebra 46, No. 1--2, 145--164 (1999; Zbl 0935.15006) Full Text: DOI
Silva, Fernando C. Invariant polynomials of matrices with prescribed entries. (English) Zbl 0923.15008 Linear Multilinear Algebra 44, No. 4, 357-372 (1998). Reviewer: G.E.Wall (Sydney) MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 44, No. 4, 357--372 (1998; Zbl 0923.15008) Full Text: DOI
Furtado, Susana; Silva, Fernando C. On the characteristic polynomial of matrices with prescribed columns and the stabilization and observability of linear systems. (English) Zbl 0926.15008 Electron. J. Linear Algebra 4, 19-31 (1998). Reviewer: I.Troch (Wien) MSC: 15A21 93B07 93D15 93B60 PDFBibTeX XMLCite \textit{S. Furtado} and \textit{F. C. Silva}, Electron. J. Linear Algebra 4, 19--31 (1998; Zbl 0926.15008) Full Text: DOI EuDML Link Link
Marques, M. Graça; Silva, Fernando C.; Lin, Zhang Yu The number of invariant polynomials of a matrix with prescribed complementary submatrices. (English) Zbl 0873.15005 Linear Algebra Appl. 251, 167-179 (1997). Reviewer: W.Wiȩsław (Wrocław) MSC: 15A21 PDFBibTeX XMLCite \textit{M. G. Marques} et al., Linear Algebra Appl. 251, 167--179 (1997; Zbl 0873.15005) Full Text: DOI
Marques, M. Graça; Silva, Fernando C. The characteristic polynomial of a matrix with prescribed off-diagonal blocks. (English) Zbl 0868.15009 Linear Algebra Appl. 250, 21-29 (1997). Reviewer: Y.Kuo (Knoxville) MSC: 15A21 PDFBibTeX XMLCite \textit{M. G. Marques} and \textit{F. C. Silva}, Linear Algebra Appl. 250, 21--29 (1997; Zbl 0868.15009) Full Text: DOI
Silva, Fernando C.; Torres, Maria M. Rank partitions under small perturbations. (English) Zbl 0890.15001 Linear Multilinear Algebra 43, No. 1-3, 299-313 (1997). Reviewer: G.Bonanno (Davis) MSC: 15A03 05B35 15A72 PDFBibTeX XMLCite \textit{F. C. Silva} and \textit{M. M. Torres}, Linear Multilinear Algebra 43, No. 1--3, 299--313 (1997; Zbl 0890.15001) Full Text: DOI
Silva, Fernando C. On feedback equivalence and completion problems. (English) Zbl 1078.93513 Linear Algebra Appl. 265, 231-245 (1997). MSC: 93B25 15A21 93C05 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 265, 231--245 (1997; Zbl 1078.93513) Full Text: DOI
Silva, Fernando C. Possible block similarity classes of a matrix with a prescribed nonprincipal submatrix. II. (English) Zbl 0921.15006 Linear Algebra Appl. 262, 259-282 (1997). MSC: 15A21 15B57 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 262, 259--282 (1997; Zbl 0921.15006) Full Text: DOI
Martins, Enide Andrade; Silva, Fernando C. On the number of invariant polynomials of matrix commutators. (English) Zbl 0883.15010 Linear Algebra Appl. 262, 179-188 (1997). Reviewer: J.Kubarski (Łódź) MSC: 15A27 13A50 15A72 PDFBibTeX XMLCite \textit{E. A. Martins} and \textit{F. C. Silva}, Linear Algebra Appl. 262, 179--188 (1997; Zbl 0883.15010) Full Text: DOI
Silva, Fernando C. On a conjecture about the Jordan form of completions of partial upper triangular matrices. (English) Zbl 0882.15005 Linear Algebra Appl. 260, 319-321 (1997). Reviewer: R.von Randow (Bonn) MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 260, 319--321 (1997; Zbl 0882.15005) Full Text: DOI
Silva, Fernando C.; So, Wasin Possibilities for the number of invariant polynomials of the difference of two similarity classes. (English) Zbl 0869.15007 Linear Multilinear Algebra 41, No. 4, 289-302 (1996). Reviewer: K.H.Kim (Montgomery) MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva} and \textit{W. So}, Linear Multilinear Algebra 41, No. 4, 289--302 (1996; Zbl 0869.15007) Full Text: DOI
Silva, Fernando C. Possible block similarity classes of a matrix with a prescribed nonprincipal submatrix. (English) Zbl 0872.15010 Linear Algebra Appl. 249, 359-373 (1996). Reviewer: M.Kleiner (Syracuse) MSC: 15A21 15B57 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 249, 359--373 (1996; Zbl 0872.15010) Full Text: DOI
Martins, Enide Andrade; Silva, Fernando C. Eigenvalues of matrix commutators. (English) Zbl 0845.15005 Linear Multilinear Algebra 39, No. 4, 375-389 (1995). Reviewer: J.M.Day (San José) MSC: 15A18 15A21 PDFBibTeX XMLCite \textit{E. A. Martins} and \textit{F. C. Silva}, Linear Multilinear Algebra 39, No. 4, 375--389 (1995; Zbl 0845.15005) Full Text: DOI
Silva, Fernando C. On controllability of partially prescribed matrices. (English) Zbl 0852.93009 Linear Multilinear Algebra 40, No. 2, 95-102 (1995). Reviewer: L.Rodman (Williamsburg) MSC: 93B05 15A22 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 40, No. 2, 95--102 (1995; Zbl 0852.93009) Full Text: DOI
Silva, Fernando C. On the number of invariant polynomials of partially prescribed matrices. (English) Zbl 0798.15011 Linear Algebra Appl. 197-198, 709-754 (1994). Reviewer: A.O.Morris (Aberystwyth) MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 197--198, 709--754 (1994; Zbl 0798.15011) Full Text: DOI
Silva, Fernando C. The eigenvalues of the product of matrices with prescribed similarity classes. (English) Zbl 0816.15006 Linear Multilinear Algebra 34, No. 3-4, 269-277 (1993). Reviewer: F.Ribière Michaud (Paris) MSC: 15A18 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 34, No. 3--4, 269--277 (1993; Zbl 0816.15006) Full Text: DOI
Silva, Fernando C. The existence of matrices with prescribed entries. (Portuguese) Zbl 0808.15007 Proceedings of the 3rd meeting of the Portuguese algebraists, April 15-16, 1993, Coimbra, Portugal. Coimbra: Departamento de Matemática, Universidade de Coimbra, 163-168 (1993). MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, in: Actas do III encontro de algebristas portugueses, 15 e 16 Abril de 1993, Coimbra, Portugal. Coimbra: Departamento de Mate\-má\-ti\-ca, Universidade de Coimbra. 163--168 (1993; Zbl 0808.15007)
Silva, Fernando C. Matrices with prescribed lower triangular part. (English) Zbl 0778.15014 Linear Algebra Appl. 182, 27-34 (1993). Reviewer: J.M.Day (San José) MSC: 15B57 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 182, 27--34 (1993; Zbl 0778.15014) Full Text: DOI
Cabral, Isabel; Silva, Fernando C. Similarity invariants of completions of submatrices. (English) Zbl 0764.15007 Linear Algebra Appl. 169, 151-161 (1992). MSC: 15A21 15A22 PDFBibTeX XMLCite \textit{I. Cabral} and \textit{F. C. Silva}, Linear Algebra Appl. 169, 151--161 (1992; Zbl 0764.15007) Full Text: DOI
Cabral, Isabel; Silva, F. C. The existence of matrices with a prescribed submatrix. (Portuguese. English summary) Zbl 0748.15012 Algebra, logic and number theory, Proc. 15th Port.-Span. Meet. Math., Évora/ Port. 1990, Vol. I, 83-88 (1991). Reviewer: M.F.Silva Leite (Coimbra) MSC: 15A22 PDFBibTeX XMLCite \textit{I. Cabral} and \textit{F. C. Silva}, in: Álgebra, lógica e theoria de números. Actas de XV jornadas luso-espanholas de matemática, 3-7 de setembro, 1990, Vol. I. Évora (Portugal): Universidade de Évora. 83--88 (1991; Zbl 0748.15012)
Silva, Fernando C. Matrices with prescribed eigenvalues and blocks. (English) Zbl 0728.15005 Linear Algebra Appl. 148, 59-73 (1991). Reviewer: R.Ursianu (Bucureşti) MSC: 15A18 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 148, 59--73 (1991; Zbl 0728.15005) Full Text: DOI
Silva, Fernando C. Matrices with nonzero entries. (English) Zbl 0726.15006 Linear Algebra Appl. 146, 111-119 (1991). Reviewer: F.J.Gaines (Dublin) MSC: 15A21 15B33 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 146, 111--119 (1991; Zbl 0726.15006) Full Text: DOI
Cabral, Isabel; Silva, Fernando C. Unified theorems on completions of matrix pencils. (English) Zbl 0738.15007 Linear Algebra Appl. 159, 43-54 (1991). Reviewer: Y.Kuo (Knoxville) MSC: 15A22 PDFBibTeX XMLCite \textit{I. Cabral} and \textit{F. C. Silva}, Linear Algebra Appl. 159, 43--54 (1991; Zbl 0738.15007) Full Text: DOI
Silva, Fernando C. Matrices with prescribed similarity class and a prescribed nonprincipal submatrix. (English) Zbl 0716.15010 Port. Math. 47, No. 1, 103-113 (1990). Reviewer: D.Carlson MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Port. Math. 47, No. 1, 103--113 (1990; Zbl 0716.15010) Full Text: EuDML
Silva, Fernando C. An additive inverse characteristic polynomial theorem. (English) Zbl 0714.15007 Port. Math. 47, No. 4, 403-409 (1990). Reviewer: K.Burian MSC: 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Port. Math. 47, No. 4, 403--409 (1990; Zbl 0714.15007) Full Text: EuDML
Silva, Fernando C. Sums and products of matrices with prescribed similarity classes. (English) Zbl 0702.15010 Linear Multilinear Algebra 27, No. 4, 317-323 (1990). Reviewer: K.H.Kim MSC: 15A30 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 27, No. 4, 317--323 (1990; Zbl 0702.15010) Full Text: DOI
Silva, Fernando C. The eigenvalues of the sum of matrices with prescribed invariant polynomials. II. (English) Zbl 0695.15005 Linear Multilinear Algebra 24, No. 1, 45-49 (1988). MSC: 15A18 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 24, No. 1, 45--49 (1988; Zbl 0695.15005) Full Text: DOI
Silva, Fernando C. The rank of the difference of matrices with prescribed invariant factors. (English) Zbl 0667.15003 Linear Multilinear Algebra 24, No. 1, 59-63 (1988). Reviewer: V.Perić MSC: 15A03 15A21 15B33 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 24, No. 1, 59--63 (1988; Zbl 0667.15003) Full Text: DOI
Silva, Fernando C. The rank of the difference of matrices with prescribed similarity classes. (English) Zbl 0667.15002 Linear Multilinear Algebra 24, No. 1, 51-58 (1988). Reviewer: V.Perić MSC: 15A03 15A21 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Multilinear Algebra 24, No. 1, 51--58 (1988; Zbl 0667.15002) Full Text: DOI
Silva, F. Conceição Spectrally complete pairs of matrices. (English) Zbl 0652.15007 Linear Algebra Appl. 108, 239-262 (1988). Reviewer: Yueh-er Kuo MSC: 15A21 15A18 15A04 PDFBibTeX XMLCite \textit{F. C. Silva}, Linear Algebra Appl. 108, 239--262 (1988; Zbl 0652.15007) Full Text: DOI