Publications by the researcher in collaboration with JOSE CARLOS DIAZ RAMOS (12)

2008

  1. Four-dimensional manifolds with degenerate self-dual Weyl curvature operator

    Annals of Global Analysis and Geometry, Vol. 34, Núm. 2, pp. 185-193

  2. Hermitian-Walker 4-manifolds

    Journal of Geometry and Physics, Vol. 58, Núm. 3, pp. 307-323

2007

  1. Almost Kähler Walker 4-manifolds

    Journal of Geometry and Physics, Vol. 57, Núm. 3, pp. 1075-1088

2006

  1. Four-dimensional Osserman metrics with nondiagonalizable Jacobi operators

    Journal of Geometric Analysis, Vol. 16, Núm. 1, pp. 39-52

  2. Homogeneity and curvatures of geodesic spheres

    Monatshefte fur Mathematik, Vol. 149, Núm. 4, pp. 303-322

  3. New examples of Osserman metrics with nondiagonalizable Jacobi operators

    Differential Geometry and its Application, Vol. 24, Núm. 4, pp. 433-442

2005

  1. Comparison results for the volume of geodesic celestial spheres in Lorentzian manifolds

    Differential Geometry and its Application, Vol. 23, Núm. 1, pp. 1-16

  2. Curvature properties of geodesic celestial spheres in Lorentzian geometry

    Nonlinear Analysis, Theory, Methods and Applications

  3. Total curvatures of geodesic spheres associated to quadratic curvature invariants

    Annali di Matematica Pura ed Applicata, Vol. 184, Núm. 1, pp. 115-130

  4. Total scalar curvatures of geodesic spheres and of boundaries of geodesic disks

    Progress in Mathematics (Springer Basel), pp. 131-143

2004

  1. A note on the structure of algebraic curvature tensors

    Linear Algebra and Its Applications, Vol. 382, Núm. 1-3, pp. 271-277

  2. On some volume comparison results in Lorentzian geometry

    II International Meeting on Lorentzian Geometry : Murcia, Spain, november 12-14, 2003