B.Sc.(Hons)(Melit.),M.Sc.(Melit.),Ph.D.(Melit.)

Room C006

G.F. Abela Junior College

University of Malta

Msida

+356 2590 7422

Alexander Farrugia is a senior lecturer at Department of Mathematics at the University of Malta Junior College and a part-time lecturer at the University of Malta. He read for his undergraduate degree at the University of Malta, a Bachelor of Science in Mathematics and Computer Science, graduating with Honours in 2001. He then followed with an M.Sc. in Mathematics at the same university, successfully graduating with Distinction in 2003. After a 10-year stint at MCAST, where he was Senior Lecturer and Mathematics Subject Coordinator, he started his Ph.D., again at the University of Malta and joined the University of Malta Junior College as a member of staff. He obtained his Ph.D. in 2016, after successfully defending his thesis titled ‘On the Spectra and Walks of Molecular and Controllable Graphs’. His area of expertise includes algebraic and spectral graph theory, with applications in molecular chemistry and control theory.

He was recognized as a Top Writer on Quora in 2017 and 2018, with his writings garnering more than 11 million views (as of October 2019). He also served as mathematics subject coordinator at Junior College from 2019 to 2021.

He was recognized as a Top Writer on Quora in 2017 and 2018, with his writings garnering more than 11 million views (as of October 2019). He also served as mathematics subject coordinator at Junior College from 2019 to 2021.

- Algebraic Graph Theory
- Spectral Graph Theory
- Walks of Graphs
- Controllable Graphs
- Graph Energies
- NSSDs
- Nuciferous Graphs

FARRUGIA, A., 2018. The increase in the resolvent energy of a graph due to the addition of a new edge. *Applied Mathematics and Computation, ***321**, pp. 25-36.

FARRUGIA, A., 2017. Coulson-type Integral Formulae for the Energy Changes of Graph Perturbations. *MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, ***77**(3), pp. 575-588.

FARRUGIA, A. and SCIRIHA, I., 2017. Triangles in inverse NSSD graphs. *Linear and Multilinear Algebra, *, pp. 1-7.

FARRUGIA, A., 2016. On strongly asymmetric and controllable primitive graphs. *Discrete Applied Mathematics, ***211**, pp. 58-67.

FARRUGIA, A., GAUCI, J.B. and SCIRIHA, I., 2016. Non-Singular graphs with a singular deck. *Discrete Applied Mathematics, ***202**, pp. 50-57.

GUTMAN, I., FURTULA, B., FARRUGIA, A. and SCIRIHA, I., 2016. Constructing NSSD molecular graphs. *Croatica Chemica Acta, ***89**(4), pp. 449-454.

SCIRIHA, I. and FARRUGIA, A., 2016. No chemical graph on more than two vertices is nuciferous. *ARS MATHEMATICA CONTEMPORANEA, ***11**(2), pp. 397-402.

FARRUGIA, A., GAUCI, J.B. and SCIRIHA, I., 2015. Complete graphs with zero diagonal inverse. *ARS MATHEMATICA CONTEMPORANEA, ***11**(2), pp. 231-245.

FARRUGIA, A. and SCIRIHA, I., 2015. On the main eigenvalues of universal adjacency matrices and U-controllable graphs. *Electronic Journal of Linear Algebra, ***30**(1), pp. 812-826.

FARRUGIA, A. and SCIRIHA, I., 2014. Controllability of undirected graphs. *Linear Algebra and its Applications, ***454**, pp. 138-157.

FARRUGIA, A. and SCIRIHA, I., 2014. The main eigenvalues and number of walks in self-complementary graphs. *Linear and Multilinear Algebra, ***62**(10), pp. 1346-1360.

SCIRIHA, I., FARRUGIA, A. and GAUCI, J.B., 2014. The adjacency matrices of complete and nutful graphs. *Match Commun.Math.Comput.Chem, ***72**, pp. 165-178.

FARRUGIA, A., GAUCI, J.B. and SCIRIHA, I., 2013. On the inverse of the adjacency matrix of a graph. *Special Matrices, ***1**, pp. 28-41.

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