Amarra, Maria Carmen
Associate Professor
Research Interests
Algebraic combinatorics, in particular symmetries of graphs and block designs.
Algebraic combinatorics, in particular symmetries of graphs and block designs.
Academic Groups

Education

Ph.D. Mathematics (2013)
The University of Western AustraliaDissertation: Symmetric graphs of diameter two
Adviser: Cheryl E. Praeger and Michael Giudici 
M.S. Mathematics (2006)
University of the Philippines DilimanThesis: \((1u)\)constacyclic codes over \(\mathbb{F}_{p^k} + u \mathbb{F}_{p^k}\)
Adviser: Fidel R. Nemenzo 
B.S. Mathematics (2002), cum laude
University of the Philippines Diliman

Ph.D. Mathematics (2013)

Postdoctoral Fellowships
 Centre for the Mathematics of Symmetry and Computation, The University of Western Australia (2018)
 Centre for the Mathematics of Symmetry and Computation, The University of Western Australia (2022)

Publications
 Chainimprimitive, flagtransitive 2designs (with A. Devillers and C.E. Praeger), in preparation.
 On locally \(n \times n\) grid graphs (with W. Jin and C.E. Praeger), in preparation.
 Blocktransitive 2designs with a chain of imprimitive partitions (with A. Devillers and C.E. Praeger), Journal of Combinatorial Theory Series A Vol. 205 (2024), 105866.
 Multiple contractions of permutation arrays (with D.V.A. Briones and M.J.C. Loquias), Journal of Algebraic Combinatorics Vol. 58 (2023), 695 – 715.
 DelandtsheerDoyen parameters for blocktransitive pointimprimitive 2designs (with A. Devillers and C.E. Praeger), Designs, Codes and Cryptography Vol. 90 (2022), 2205 – 2221.
 Generalised shuffle groups (with L. Morgan and C.E. Praeger), Israel Journal of Mathematics Vol 244 (2021), 807 – 856.
 Quotientcomplete arctransitive latin square graphs from groups, Graphs and Combinatorics (2018) 34: 1651—1669.
 On the girth and diameter of generalized Johnson graphs (with L. Agong, J.S. Caughman, A.J. Herman, and T.S. Terada), Discrete Mathematics 341 (2018), 138—142.
 Affine primitive symmetric graphs with diameter two (with M. Giudici and C.E. Praeger), Ars Mathematica Contemporanea Vol. 13 No. 1 (2017), 137—165.
 Quotientcomplete arctransitive graphs (with M. Giudici and C.E. Praeger), European Journal of Combinatorics 33 (2012), 1857 – 1881.
 Symmetric diameter two graphs with affinetype vertexquasiprimitive automorphism group (with M. Giudici and C.E. Praeger), Designs, Codes and Cryptography Special Issue on Finite Geometries, 68 (2013), 127 – 139.
 On \((1u)\)cyclic codes over \(\mathbb{F}_{p^k} + u \mathbb{F}_{p^k}\) (with F. Nemenzo), Applied Mathematics Letters 21 (2008), 1129 — 1133.