Publications
On the lattice of prefix codes. Theoret. Comput. Sci.. 2002;289:755-782.Edit
Periodicity vectors for labelled trees. Discrete Appl. Math.. 2003;126:241-260.Edit
Further results on monoids acting on trees. Internat. J. Algebra Comput.. 2012;22:1250034, 69.Edit
The semaphore codes attached to a Turing machine via resets and their various limits. Internat. J. Algebra Comput.. 2016;26(4):675-704.Edit
[2006-46] An algebraic analysis of Turing machines and Cook’s Theorem leading to a profinite fractal different .Edit
Boolean Representations of Simplicial Complexes and Matroids. Vol Springer Monographs in Mathematics Springer 2015.Edit
Random walks on semaphore codes and delay de Bruijn semigroups. Internat. J. Algebra Comput.. 2016;26(4):635-673.Edit
Turing machines and bimachines. Theoret. Comput. Sci.. 2008;400:182-224.Edit
A new notion of vertex independence and rank for finite graphs. Internat. J. Algebra Comput.. 2015;25(1-2):123-167.Edit
Pneumococcal pneumonia-are the new severity scores more accurate in predictingadverse outcomes? [Pneumonia pneumocócica-serão os novos scoresmais precisos a prever eventos desfavoráveis?]. Revista Portuguesa de Pneumologia. 2013;19:252-259.Edit
New canonical triple covers of surfaces. Proceedings of the American Mathematical Society. 2015;143(11):4647-4653.
A surface with $q=2$ and canonical map of degree $16$. Michigan Mathematical Journal. 2017;66(1):99-105.
[2015-20] A surface with canonical map of degree $24$ .
Some bidouble planes with $p_g=q=0$ and $4\leq K^2\leq 7$. International Journal of Mathematics. 2015;26(5).
A surface with canonical map of degree 24. International Journal of Mathematics. 2017;28(6).Edit
[2015-19] New surfaces with $K^2=7$ and $p_g=q\leq 2$ .
Cuspidal quintics and surfaces with $p_g=0,$ $K^2=3$ and 5-torsion. LMS Journal of Computation and Mathematics. 2016;19(1):42-53.
On the construction of complex algebraic surfaces. Vol 38, 39 2017.Edit
Hyperelliptic surfaces with $K^2 < 4\chi - 6$. Osaka Journal of Mathematics. 2015;52(4):929-947.Edit
New surfaces with $K^2=7$ and $p_g=q\leq 2$. The Asian Journal of Mathematics. In Press.Edit
Explicit Schoen surfaces. Algebraic Geometry. In Press.Edit