Tomi S. Koivisto
- The Geometrical Trinity of Gravity
2019/03/15 by Jose Beltran Jimenez, Jimenez, Jose Beltran, Lavinia Heisenberg +3 · 47 citations
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #gr-qc #hep-th
- Vector field models of inflation and dark energy
2008/05/31 by Tomi Koivisto, Tomi S. Koivisto, David F. Mota · 8 citations
Mathematics · Physics and Astronomy · #Anisotropy #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Field (mathematics) #Galaxies: Formation, Evolution, Phenomena #Geometry #Inflation (cosmology) #Inflaton #Isotropy #Mathematical physics #Mathematics #Physics #Quantum mechanics #Quintessence #Scalar (mathematics) #Scalar field #Scaling #Theoretical physics #Vector field #astro-ph #gr-qc #hep-th
- Cosmology of hybrid metric-Palatinif(X)-gravity
2012/09/30 by Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto +5 · 10 citations
Physics and Astronomy · #Advanced Differential Geometry Research #Cosmology and Gravitation Theories #Relativity and Gravitational Theory #astro-ph.CO #gr-qc #hep-th
- Inflation and dark energy from three-forms
2009/08/31 by Tomi S. Koivisto, Tomi Koivisto, Nelson J. Nunes +1 · 3 citations
Physics and Astronomy · #Astrophysics #Attractor #Black Holes and Theoretical Physics #Classical mechanics #Cosmological perturbation theory #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Inflation (cosmology) #Inflaton #Instability #Observable #Phase space #Physics #Quantum mechanics #Scalar (mathematics) #Scalar field #Solar and Space Plasma Dynamics #Theoretical physics #astro-ph.CO #gr-qc #hep-th
- Accidental gauge symmetries of Minkowski spacetime in Teleparallel theories
2021/04/12 by Jose Beltrán Jiménez, Tomi S. Koivisto, Jiménez, Jose Beltrán +2 · 4 citations
Physics and Astronomy · #Advanced Differential Geometry Research #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #gr-qc
- Disformal quintessence
2008/11/12 by Tomi S. Koivisto, Tomi Koivisto, Koivisto, Tomi S. · 3 citations
Physics and Astronomy · #Astrophysics (astro-ph) #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #Relativity and Gravitational Theory #astro-ph
- Extended Gauss-Bonnet gravities in Weyl geometry
2014/02/08 by Jose Beltran Jimenez, Tomi S. Koivisto · 2 citations
Physics and Astronomy · #gr-qc
- Noether symmetries in symmetric teleparallel cosmology
2019/05/22 by Konstantinos F. Dialektopoulos, Tomi S. Koivisto, Tomi Koivisto +2 · 2 citations
Mathematics · Physics and Astronomy · #Advanced Differential Geometry Research #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Geometry #Homogeneous space #Invariant (physics) #Mathematical physics #Mathematics #Noether's theorem #Physics #Pure mathematics #Quadratic equation #Quantum mechanics #Symmetry (geometry) #Tensor (intrinsic definition) #Theoretical physics #gr-qc #math-ph #math.MP
- Perturbations in electromagnetic dark energy
2009/07/31 by Jose Beltran Jimenez, Tomi S. Koivisto, Antonio L. Maroto +1 · 1 citation
Physics and Astronomy · #physics.gen-ph #gr-qc
- Scalar-Fluid theories: cosmological perturbations and large-scale structure
2015/05/28 by Tomi S. Koivisto, Emmanuel N. Saridakis, Nicola Tamanini · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc #hep-th
- Spacetimes with vector distortion: Inflation from generalised Weyl geometry
2015/09/30 by Jose Beltrán Jiménez, Tomi S. Koivisto, Tomi Koivisto · 1 citation
Mathematics · Physics and Astronomy · #Affine connection #Affine transformation #Black Holes and Theoretical Physics #Conformal field theory #Conformal geometry #Conformal map #Cosmology and Gravitation Theories #Curvature #Differential geometry #Einstein tensor #Gauge theory #Geometry #Killing vector field #Kinetic term #Mathematical physics #Mathematics #Physics #Quadratic equation #Quantum mechanics #Riemann curvature tensor #Scalar field #Solar and Space Plasma Dynamics #Spacetime #Spin connection #Torsion (gastropod) #Vector field #Weyl tensor #astro-ph.CO #gr-qc #hep-th
- Cosmology for quadratic gravity in generalized Weyl geometry
2016/02/23 by Jose Beltran Jimenez, Lavinia Heisenberg, Tomi S. Koivisto · 1 citation
Physics and Astronomy · #hep-th #astro-ph.CO #gr-qc
- Wormholes supported by hybrid metric-Palatini gravity
2012/09/30 by Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto +2 · 1 citation
Physics and Astronomy · #gr-qc #astro-ph.HE #hep-th
- Doubly-boosted vector cosmologies from disformal metrics
2015/03/05 by Tomi S Koivisto, Tomi S. Koivisto, Federico R. Urban +1 · 1 citation
Physics and Astronomy · #Advanced Differential Geometry Research #Anisotropy #Black Holes and Theoretical Physics #Cosmological model #Cosmology #Cosmology and Gravitation Theories #Field (mathematics) #Isotropy #Scaling #Vector field #astro-ph.CO
- Coupling matter in modifiedQgravity
2018/06/27 by Tiberiu Harko, Tomi S. Koivisto, Tomi Koivisto +4 · 3 citations
Mathematics · Physics and Astronomy · #Advanced Differential Geometry Research #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Coupling (piping) #Curvature #Formalism (music) #Geometry #Gravitation #Mathematical physics #Mathematics #Physics #astro-ph.CO #gr-qc #hep-th
- Ghosts in pure and hybrid formalisms of gravity theories: A unified analysis
2013/04/12 by Tomi S. Koivisto, Tomi Koivisto, Nicola Tamanini · 2 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Cosmology and Gravitation Theories #Geometry #Mathematics #Physics #Relativity and Gravitational Theory #Rotation formalisms in three dimensions #Theoretical physics #gr-qc #hep-th
- Cosmological viability of massive gravity with generalized matter coupling
2014/09/30 by Adam R. Solomon, Jonas Enander, Yashar Akrami +3 · 2 citations
Physics and Astronomy · #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Equivalence (formal languages) #Friedmann–Lemaître–Robertson–Walker metric #Galaxies: Formation, Evolution, Phenomena #Graviton #Massive gravity #Metric (unit) #Perfect fluid #Pulsars and Gravitational Waves Research #astro-ph.CO #gr-qc #hep-th
- The virial theorem and the dark matter problem in hybrid metric-Palatini gravity
2012/12/31 by Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto +2 · 1 citation
Physics and Astronomy · #physics.gen-ph #gr-qc