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Alho

Artur Carlos Ferreira Alho


Phone (351) 21
Email aalho @ math.ist.utl.pt
Office Mathematics Building, 2th floor, room 2.10
Postal Address Departamento de Matemática
Instituto Superior Técnico
Av. Rovisco Pais
1049-001 Lisbon, Portugal


Position

Postdoc of the Center for Mathematical Analysis, Geometry and Dynamical Systems

Education

PhD (Mathematics), 2012, CMAT - Universidade do Minho

Mestre em Cosmologia e Física de Partículas, 2008, IUFFyM - Universidad de Salamanca

Licenciado em Física, 2007, DFIS - Universidade de Coimbra



Research Interests

Mathematical Relativity

Dynamical systems in Cosmology and Astrophysics

Diffusion in General Relativity

Research Papers

The Einstein-Friedrich-nonlinear scalar field system and the stability of scalar field Cosmologies, (joint with Filipe C. Mena and Juan A. Valiente-Kroon ), arXiv:1006.3778v3 .

A stellar model with diffusion in general relativity, (joint with Simone Calogero), J. Geom. Phys. 120 (2017) 62–72 .

Inflationary α-attractor cosmology: A global dynamical systems perspective, (joint with Claes Uggla), Phys. Rev. D (3) 95 (8:083517) (2017) .

On dynamical systems approaches and methods in f(R) cosmology, (joint with Sante Carloni and Claes Uggla), J. Cosmol. Astropart. Phys. 2016 (08), 064 .

Simetrias e sistemas dinâmicos em Cosmologia, Bol. Soc. Port. Mat. No. 73 (2015), 103–125.

Scalar field deformations of Lambda-CDM cosmology, (joint with Claes Uggla), Phys. Rev. D 92, 103502 (2015) .

Global dynamics and asymptotics for monomial scalar field potentials and perfect fluids, (joint with Juliette Hell and Claes Uggla), Class. Quantum Grav. 32 145005 (2015) .

Dynamics of Robertson-Walker spacetimes with diffusion, (joint with Simone Calogero, Maria P. Ramos, and Ana J. Soares), Annals of Physics 354 475–488 (2015) .

Global dynamics and inflationary center manifold and slow-roll approximants, (joint with Claes Uggla), J. Math. Phys. 56, 012502 (2015) .

Covariant and gauge-invariant linear scalar perturbations in multiple scalar field cosmologies, (joint with Filipe C. Mena ), Phys. Rev. D 90, 043501 (2014) .

The problem of a self-gravitating scalar field with positive cosmological constant, (joint with João L. Costa and José Natário ), Annales Henri Poincaré 14(5), 1077-1107 (2013) .

Spherical linear waves in de Sitter spacetime, (joint with João L. Costa and José Natário ), J. Math. Phys. 53, (2012) 052501 .

Pre-inflationary homogenization of scalar field cosmologies, (joint with Filipe C. Mena ), Physics Letters B 703(5), 2011, 537–542 .



Teaching (in portuguese)

1º Semestre (2016/2017): Análise Matemática , LIGE, ISCTE-IUL.

2º Semestre (2016/2017): Optimização , LFC, ISCTE-IUL.

1º Semestre (2017/2018): Análise Matemática I , LEI, ISCTE-IUL.

2º Semestre (2017/2018): Optimização , LGM, ISCTE-IUL.

Students (mostly in Portuguese)


Research Initiation Grant (BI) Supervision

Vitor Bessa (June-October 2017) Global properties of solutions to Einstein's equations , 4 month BI grant from project PTDC/MAT-ANA/1275/2014. Co-supervision by Filipe Mena (CMAT, Minho).