Ferrer Santos, Walter A short survey on observability. (English) Zbl 1436.14104 Rev. Colomb. Mat. 53, Suppl. 1, 143-183 (2019). MSC: 14R20 13A50 16D90 18E10 20G05 16-02 14-02 13-02 PDFBibTeX XMLCite \textit{W. Ferrer Santos}, Rev. Colomb. Mat. 53, 143--183 (2019; Zbl 1436.14104) Full Text: DOI arXiv
Ferrer Santos, Walter; Malherbe, Octavio The category of implicative algebras and realizability. (English) Zbl 1468.03084 Math. Struct. Comput. Sci. 29, No. 10, 1575-1606 (2019). MSC: 03G30 03B40 18B25 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{O. Malherbe}, Math. Struct. Comput. Sci. 29, No. 10, 1575--1606 (2019; Zbl 1468.03084) Full Text: DOI arXiv
Ferrer Santos, Walter; Guillermo, Mauricio; Malherbe, Octavio Realizability in ordered combinatory algebras with adjunction. (English) Zbl 1456.03025 Math. Struct. Comput. Sci. 29, No. 3, 430-464 (2019). MSC: 03B40 03G30 18B35 PDFBibTeX XMLCite \textit{W. Ferrer Santos} et al., Math. Struct. Comput. Sci. 29, No. 3, 430--464 (2019; Zbl 1456.03025) Full Text: DOI
Rittatore, Alvaro; del Angel, Pedro Luis; Santos, Walter Ferrer Quasi-compact group schemes, Hopf sheaves, and their representations. arXiv:1807.03428 Preprint, arXiv:1807.03428 [math.AG] (2018). MSC: 14L15 14M17 18M25 BibTeX Cite \textit{A. Rittatore} et al., ``Quasi-compact group schemes, Hopf sheaves, and their representations'', Preprint, arXiv:1807.03428 [math.AG] (2018) Full Text: arXiv OA License
Aguiar, Marcelo; Ferrer Santos, Walter; Moreira, Walter The Heisenberg product: from Hopf algebras and species to symmetric functions. (English) Zbl 1380.16027 São Paulo J. Math. Sci. 11, No. 2, 261-311 (2017). MSC: 16T05 16T30 05E05 PDFBibTeX XMLCite \textit{M. Aguiar} et al., São Paulo J. Math. Sci. 11, No. 2, 261--311 (2017; Zbl 1380.16027) Full Text: DOI arXiv
Ferrer Santos, Walter; Frey, Jonas; Guillermo, Mauricio; Malherbe, Octavio; Miquel, Alexandre Ordered combinatory algebras and realizability. (English) Zbl 1423.03053 Math. Struct. Comput. Sci. 27, No. 3, 428-458 (2017). MSC: 03B40 03G30 03F50 03F55 PDFBibTeX XMLCite \textit{W. Ferrer Santos} et al., Math. Struct. Comput. Sci. 27, No. 3, 428--458 (2017; Zbl 1423.03053) Full Text: DOI arXiv
Ferrer Santos, Walter Ricardo; Rittatore, Alvaro Actions and invariants of algebraic groups. 2nd edition. (English) Zbl 1354.14069 Monographs and Research Notes in Mathematics. Boca Raton, FL: CRC Press (ISBN 978-1-4822-3915-7/hbk; 978-1-4822-3916-4/ebook). xx, 422 p. (2017). MSC: 14Lxx 14L24 13A50 14-01 14L30 14M17 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos} and \textit{A. Rittatore}, Actions and invariants of algebraic groups. 2nd edition. Boca Raton, FL: CRC Press (2017; Zbl 1354.14069) Full Text: DOI
Abella, Andrés; Ferrer Santos, Walter Almost involutive Hopf algebras. (English) Zbl 1371.16032 São Paulo J. Math. Sci. 10, No. 2, 273-285 (2016). MSC: 16T05 16W20 PDFBibTeX XMLCite \textit{A. Abella} and \textit{W. Ferrer Santos}, São Paulo J. Math. Sci. 10, No. 2, 273--285 (2016; Zbl 1371.16032) Full Text: DOI arXiv
Ferrer Santos, Walter; Rittatore, Alvaro Linearly reductive and unipotent actions of affine groups. (English) Zbl 1326.14113 Int. J. Math. 26, No. 5, Article ID 1550031, 22 p. (2015). Reviewer: Ivo M. Michailov (Shumen) MSC: 14L30 14L40 13A50 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{A. Rittatore}, Int. J. Math. 26, No. 5, Article ID 1550031, 22 p. (2015; Zbl 1326.14113) Full Text: DOI arXiv
Santos, Walter Ferrer; Guillermo, Mauricio; Malherbe, Octavio Realizability in OCAs and AKSs. arXiv:1512.07879 Preprint, arXiv:1512.07879 [math.LO] (2015). MSC: 03B15 BibTeX Cite \textit{W. F. Santos} et al., ``Realizability in OCAs and AKSs'', Preprint, arXiv:1512.07879 [math.LO] (2015) Full Text: arXiv OA License
Santos, Walter Ferrer; Guillermo, Mauricio; Malherbe, Octavio A Report on Realizability. arXiv:1309.0706 Preprint, arXiv:1309.0706 [math.LO] (2013). BibTeX Cite \textit{W. F. Santos} et al., ``A Report on Realizability'', Preprint, arXiv:1309.0706 [math.LO] (2013) Full Text: arXiv OA License
Abella, Andrés; Ferrer Santos, Walter; Haim, Mariana Some constructions of compact quantum groups. (English) Zbl 1281.16041 São Paulo J. Math. Sci. 6, No. 1, 1-40 (2012). MSC: 16T20 16T05 17B37 46L89 PDFBibTeX XMLCite \textit{A. Abella} et al., São Paulo J. Math. Sci. 6, No. 1, 1--40 (2012; Zbl 1281.16041) Full Text: DOI arXiv
Schwartz, James; Gerstenhaber, Murray; Bateman, Paul; Tate, John T.; Magid, Andy; Mostow, G. D.; Ferrer Santos, Walter; Moore, Calvin; Kostant, Bertram; Bergman, George M.; Moskowitz, Martin; Nahlus, Nazih Ferrer Santos, Walter (ed.); Moskowitz, Martin (ed.) Gerhard Hochschild (1915–2010). (English) Zbl 1225.01083 Notices Am. Math. Soc. 58, No. 8, 1078-1099 (2011). MSC: 01A70 PDFBibTeX XMLCite \textit{J. Schwartz} et al., Notices Am. Math. Soc. 58, No. 8, 1078--1099 (2011; Zbl 1225.01083)
Santos, Walter Ferrer Gerhard Hochschild (1915/2010) A Mathematician of the XXth Century. arXiv:1104.0335 Preprint, arXiv:1104.0335 [math.HO] (2011). BibTeX Cite \textit{W. F. Santos}, ``Gerhard Hochschild (1915/2010) A Mathematician of the XXth Century'', Preprint, arXiv:1104.0335 [math.HO] (2011) Full Text: arXiv OA License
Abella, Andrés; Ferrer Santos, Walter; Haim, Mariana Compact coalgebras, compact quantum groups and the positive antipode. (English) Zbl 1247.16029 São Paulo J. Math. Sci. 3, No. 2, 193-229 (2009). MSC: 16T20 16T15 17B37 PDFBibTeX XMLCite \textit{A. Abella} et al., São Paulo J. Math. Sci. 3, No. 2, 193--229 (2009; Zbl 1247.16029) Full Text: DOI arXiv
Andruskiewitsch, Nicolás; Ferrer Santos, Walter The beginnings of the theory of Hopf algebras. (English) Zbl 1192.16030 Acta Appl. Math. 108, No. 1, 3-17 (2009). Reviewer: Earl J. Taft (New Brunswick) MSC: 16T05 57T05 01A60 16-03 57-03 PDFBibTeX XMLCite \textit{N. Andruskiewitsch} and \textit{W. Ferrer Santos}, Acta Appl. Math. 108, No. 1, 3--17 (2009; Zbl 1192.16030) Full Text: DOI arXiv
Ferrer Santos, Walter; López Franco, Ignacio Monoidal categories of comodules for coquasi Hopf algebras and Radford’s formula. (English) Zbl 1182.16024 Futorny, Vyacheslav (ed.) et al., Algebras, representations and applications. Conference in honour of Ivan Shestakov’s 60th birthday, Maresias, Brazil, August 26–September 1, 2007. Providence, RI: American Mathematical Society (AMS) (ISBN 978-0-8218-4652-0/pbk). Contemp. Math. 483, 107-135 (2009). Reviewer: Constantin Năstăsescu (Bucureşti) MSC: 16T05 18D10 16T15 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{I. López Franco}, Contemp. Math. 483, 107--135 (2009; Zbl 1182.16024) Full Text: arXiv
Ferrer Santos, Walter; Haim, Mariana Radford’s formula for biFrobenius algebras and applications. (English) Zbl 1148.16034 Commun. Algebra 36, No. 4, 1301-1310 (2008). MSC: 16W30 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{M. Haim}, Commun. Algebra 36, No. 4, 1301--1310 (2008; Zbl 1148.16034) Full Text: DOI arXiv
Ferrer Santos, Walter (ed.); González-Sprinberg, Gerardo (ed.); Rittatore, Alvaro (ed.); Solotar, Andrea (ed.) Proceedings of the XVIth Latinamerican algebra colloquium, Colonia del Sacramento, August 1–9, 2005. (Actas del XVI coloquio Latinoamericano de álgebra.) (English) Zbl 1184.13002 Biblioteca de la Revista Matemática Iberoamericana. Madrid: Revista Matemática Iberoamericana (ISBN 978-84-611-7907-7/pbk). xii, 331 p. (2007). MSC: 13-06 14-06 16-06 17-06 47Lxx 00B25 PDFBibTeX XMLCite \textit{W. Ferrer Santos} (ed.) et al., Actas del XVI coloquio Latinoamericano de álgebra. Madrid: Revista Matemática Iberoamericana (2007; Zbl 1184.13002)
Ferrer Santos, Walter; Rittatore, Alvaro Generalizations of Cayley’s \(\Omega\)-process. (English) Zbl 1115.20055 Proc. Am. Math. Soc. 135, No. 4, 961-968 (2007). Reviewer: Huang Wenxue (Scarborough) MSC: 20M20 20G15 14L24 13A50 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{A. Rittatore}, Proc. Am. Math. Soc. 135, No. 4, 961--968 (2007; Zbl 1115.20055) Full Text: DOI arXiv
Andruskiewitsch, Nicolás; Ferrer Santos, Walter R. On observable module categories. (English) Zbl 1153.16034 Giambruno, Antonio (ed.) et al., Groups, rings and group rings. Proceedings of the conference, Ubatuba, Brazil, July 26–31, 2004. In honor of the 60th birthday of Prof. César Polcino Milies. Boca Raton, FL: Chapman & Hall/CRC (ISBN 1-58488-581-5/pbk). Lecture Notes in Pure and Applied Mathematics 248, 11-23 (2006). MSC: 16W30 16D90 18E10 20G05 PDFBibTeX XMLCite \textit{N. Andruskiewitsch} and \textit{W. R. Ferrer Santos}, Lect. Notes Pure Appl. Math. 248, 11--23 (2006; Zbl 1153.16034)
Ferrer Santos, Walter; Rittatore, Alvaro Actions and invariants of algebraic groups. (English) Zbl 1079.14053 Pure and Applied Mathematics (Boca Raton) 269. Boca Raton, FL: Chapman & Hall/CRC (ISBN 0-8247-5896-X/hbk). xvi, 454 p. (2005). Reviewer: Werner Kleinert (Berlin) MSC: 14Lxx 14L24 13A50 14-01 14L30 14M17 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{A. Rittatore}, Actions and invariants of algebraic groups. Boca Raton, FL: Chapman \& Hall/CRC (2005; Zbl 1079.14053)
Ferrer Santos, Walter Ricardo Fourier theory for coalgebras, bicointegrals and injectivity for bicomodules. (English) Zbl 1060.16036 Bergen, Jeffrey (ed.) et al., Hopf algebras. Proceedings from the international conference, DePaul University, Chicago, IL, USA held during the 2001–2002 academic year. New York, NY: Marcel Dekker (ISBN 0-8247-5566-9/pbk). Lect. Notes Pure Appl. Math. 237, 225-240 (2004). Reviewer: Sorin Dascalescu (Safat) MSC: 16W30 16D90 16D50 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, Lect. Notes Pure Appl. Math. 237, 225--240 (2004; Zbl 1060.16036)
Ferrer Santos, Walter; Gonzalez-Sprinberg, Gerardo On polynomial invariants. (English) Zbl 1079.13501 Bol. Acad. Nac. Cienc., Córdoba 65, 138-146 (2000). MSC: 13A50 15A72 13A02 20G05 16R30 PDFBibTeX XMLCite \textit{W. Ferrer Santos} and \textit{G. Gonzalez-Sprinberg}, Bol. Acad. Nac. Cienc., Córdoba 65, 138--146 (2000; Zbl 1079.13501)
Andruskiewitsch, Nicolás (ed.); Ferrer Santos, Walter Ricardo (ed.); Schneider, Hans-Jürgen (ed.) New trends in Hopf algebra theory. Proceedings of the colloquium on quantum groups and Hopf algebras, La Falda, Sierras de Córdoba, Argentina, August 9–13, 1999. (English) Zbl 0955.00038 Contemporary Mathematics. 267. Providence, RI: American Mathematical Society (AMS). xv, 356 p. (2000). MSC: 00B25 16-06 16W30 16W35 16S40 16W25 PDFBibTeX XMLCite \textit{N. Andruskiewitsch} (ed.) et al., New trends in Hopf algebra theory. Proceedings of the colloquium on quantum groups and Hopf algebras, La Falda, Sierras de Córdoba, Argentina, August 9--13, 1999. Providence, RI: American Mathematical Society (AMS) (2000; Zbl 0955.00038) Full Text: DOI
Aguiar, Marcelo; Ferrer Santos, Walter Galois connections for incidence Hopf algebras of partially ordered sets. (English) Zbl 0945.06002 Adv. Math. 151, No. 1, 71-100 (2000). Reviewer: Joseph Neggers (Tuscaloosa) MSC: 06A15 06A11 16S99 PDFBibTeX XMLCite \textit{M. Aguiar} and \textit{W. Ferrer Santos}, Adv. Math. 151, No. 1, 71--100 (2000; Zbl 0945.06002) Full Text: DOI Link
Ferrer Santos, Walter Ricardo An overview of twisted products. (English) Zbl 0951.16012 Bol. Acad. Nac. Cienc., Córdoba 63, 79-89 (1999). Reviewer: Blas Torrecillas (Almeria) MSC: 16W30 16S40 16W50 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, Bol. Acad. Nac. Cienc., Córdoba 63, 79--89 (1999; Zbl 0951.16012)
Ferrer Santos, Walter Ricardo; Torrecillas, Blas Twisting products in algebras. II. (English) Zbl 0953.16027 \(K\)-Theory 17, No. 1, 37-53 (1999). Reviewer: B.Pareigis (München) MSC: 16S80 16W30 16S40 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos} and \textit{B. Torrecillas}, \(K\)-Theory 17, No. 1, 37--53 (1999; Zbl 0953.16027) Full Text: DOI
Ferrer Santos, Walter Ricardo Twisting products in Hopf algebras and the construction of the quantum double. (English) Zbl 0841.16038 Commun. Algebra 23, No. 7, 2719-2744 (1995). Reviewer: B.Pareigis (München) MSC: 16W30 16S40 17B37 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, Commun. Algebra 23, No. 7, 2719--2744 (1995; Zbl 0841.16038) Full Text: DOI
Ferrer Santos, Walter Ricardo Geometrically reductive Hopf algebras. II. (English) Zbl 0828.16043 J. Algebra 170, No. 1, 1-8 (1994). Reviewer: B.Pareigis (München) MSC: 16W30 17B35 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, J. Algebra 170, No. 1, 1--8 (1994; Zbl 0828.16043) Full Text: DOI
Ferrer Santos, Walter R. Finite generation of the invariants of finite dimensional Hopf algebras. (English) Zbl 0821.16040 J. Algebra 165, No. 3, 543-549 (1994). Reviewer: E.J.Taft (New Brunswick) MSC: 16W30 16S40 14L30 16W20 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, J. Algebra 165, No. 3, 543--549 (1994; Zbl 0821.16040) Full Text: DOI
Ferrer Santos, Walter Ricardo A generalization of the concepts of linearly and geometrically reductive group. (English) Zbl 0864.20026 Brambila Paz, L. (ed.) et al., Topics in algebraic geometry. Proceedings of a seminar on algebraic geometry, Guanajuato, Mexico 1989. Mexico City: Sociedad Matemática Mexicana. Aportaciones Mat., Notas Invest. 5, 21-35 (1992). MSC: 20G05 14L35 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, Aportaciones Mat., Notas Invest. 5, 21--35 (1992; Zbl 0864.20026)
Borsari, Heloisa; Ferrer Santos, Walter Geometrically reductive Hopf algebras. (English) Zbl 0803.16038 J. Algebra 152, No. 1, 65-77 (1992). Reviewer: B.Pareigis (München) MSC: 16W30 17B35 PDFBibTeX XMLCite \textit{H. Borsari} and \textit{W. Ferrer Santos}, J. Algebra 152, No. 1, 65--77 (1992; Zbl 0803.16038) Full Text: DOI
Ferrer Santos, Walter Closed conjugacy classes, closed orbits and structure of algebraic groups. (English) Zbl 0747.14013 Commun. Algebra 19, No. 12, 3241-3248 (1991). Reviewer: A.E.Zalesskij (Minsk) MSC: 14L30 20G15 PDFBibTeX XMLCite \textit{W. Ferrer Santos}, Commun. Algebra 19, No. 12, 3241--3248 (1991; Zbl 0747.14013) Full Text: DOI
Ferrer Santos, Walter Ricardo A note on affine quotients. (English) Zbl 0532.20025 J. Lond. Math. Soc., II. Ser. 31, 292-294 (1985). MSC: 20G15 14L17 14M17 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, J. Lond. Math. Soc., II. Ser. 31, 292--294 (1985; Zbl 0532.20025) Full Text: DOI
Ferrer Santos, Walter Ricardo Cohomology of comodules. (English) Zbl 0465.16004 Pac. J. Math. 109, 179-213 (1983). MSC: 16W30 18G40 57T05 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, Pac. J. Math. 109, 179--213 (1983; Zbl 0465.16004) Full Text: DOI
Ferrer Santos, Walter Ricardo A note on reductive groups. (English) Zbl 0541.14038 An. Acad. Bras. Ciênc. 54, 469-471 (1982). Reviewer: C.De Concini MSC: 14L35 20G15 PDFBibTeX XMLCite \textit{W. R. Ferrer Santos}, An. Acad. Bras. Ciênc. 54, 469--471 (1982; Zbl 0541.14038)