Silva PV. A note on primeness of semigroup rings. Proc. Roy. Soc. Edinburgh Sect. A. 1992;120:191-197.

Silva PV, Soler-Escrivà X, Ventura E. Finite automata for Schreier graphs of virtually free groups. J. Group Theory. 2016;19:25-54.Edit

[2010-14] Silva PV. Finite idempotent inverse monoid presentations .

Silva M, Magalhães ML. Luis Inacio Woodhouse (1857-1927). Vol 1. U. Porto Edições ed. 2018.Edit

Silva PV. On unique factorization semilattices. Discuss. Math. Gen. Algebra Appl.. 2000;20:97-120.

Silva H, Brito P., Da Costa J. a partitional clustering algorithm validated by a clustering tendency index based on graph theory. pattern recognition. 2006;39:776-788.Edit

Silva PV. Fixed points of endomorphisms of virtually free groups. Pacific J. Math.. 2013;263:207-240.

[2014-29] Silva PV, Soares F. Howson’s property for semidirect products of semilattices by groups .Edit

[2006-7] Silva PV, Weil P. On an algorithm to decide whether a free group is a free factor of another .Edit

[2012-10] Silva PV. Fixed points of endomorphisms of virtually free groups .

[2013-25] Silva PV. Teoria Geométrica de Grupos (notas de curso, Universidade Federal da Bahia) .

Silva PV. Conjugacy and transposition for inverse monoid presentations. Internat. J. Algebra Comput.. 1996;6:607-622.

Silva P., Garganta J, Araújo D, Davids K., Aguiar P. Shared knowledge or shared affordances? insights from an ecological dynamics approach to team coordination in sports. Sports Medicine. 2013;43:765-772.Edit

Silva MC, Ribeiro RM. Reflexão sobre um teorema de Jacques Bernoulli relativo a secções cónicas. Vol 139 SPM 2000.Edit

[2016-13] Silva PV, Soares F. Local finiteness for Green relations in (I-)semigroup varieties .Edit

Silva PV. A note on pure and $p$-pure languages. Acta Inform.. 2003;39:579-595.

[2010-15] Silva PV. Fixed points of endomorphisms of certain free products .

Silva PV. Trees associated to inverse monoid presentations. J. Pure Appl. Algebra. 2001;165:307-335.

Silva P., Weil P. On finite-index extensions of subgroups of free groups. J. Group Theory. 2010;13:365-381.Edit

[2008-29] Silva PV, Weil P. Automorphic orbits in free groups: words versus subgroups .Edit

[2006-37] M. Silva C, Malet A. A note on Pérez de Moya’s Principios de Geometria (1584) .Edit

Silva MC. Renaissance sources of Juan Pérez de Moya’s geometries. Asclepio. Revista de Historia de la Medicina y de la Ciencia. 2013;65 (2)(julio-diciembre ):1-18.Edit

Silva MC, Malet A. A note on Pérez de Moya's Principios de Geometria (1584). Revue d'histoire des mathématiques . 2008;14 ( fascicule 1 ):113-133.Edit

Silva PV. Rational languages and inverse monoid presentations. Internat. J. Algebra Comput.. 1992;2:187-207.

Silva PV. The homomorphism problem for the free monoid. Discrete Math.. 2002;259:189-200.