Topics in Almost Hermitian Geometry and Related Fields : Proceedings in Honor of Professor K. Sekigawa's 60th Birthday : Niigata, Japan, 1-3 November 2004

this Volume Contains A Valuable Collection Of Research Articles By Active And Well-known Mathematicians In Differential Geometry And Mathematical Physics, Contributed To Mark Professor Kouei Sekigawa's 60th Birthday. The Papers Feature Many New And Significant Results While Also Reviewing Developments In The Field. The Illustrious Career Of Professor Sekigawa And His Encounters With Friends In Mathematics Is A Special Highlight Of The Volume. On g-natural metrics with constant scalar curvature on unit tangent sphere bundles -- Magnetic mean operators on a Kahler manifold -- Yang-Mills fields analogue of biharmonic maps -- Invariant and anti-invariant unit vector fields -- A new structure on unit tangent sphere bundles -- Application of Bochner- Weizenbock formulas to symplectic and complex pairs to be Kahler pairs in dimension four -- Complete Ic-curvature homogeneous pseudo-Riemannian manifolds 0-modeled on an indecomposible symmetric space -- Miyaoka-Yau inequality and complex hyperbolicity -- Neutral bi-Hermitian Gray surfaces -- On the discontinuity of affine motions and Auslanders conjecture -- Real hypersurfaces in non-flat complex space forms concerned with the structure Jacobi operator and Ricci tensor -- Real hypersurfaces in a nonflat complex space form from the viewpoint of their geodesics -- Tangent bundles with Sasaki metric and almost hypercomplex pseudo-Hermitian structure -- On the existence of 3-dimensional invariant submanifolds of S -- Infinitesimal Fourier transformation for the space of functionals -- A Liouville theorem for harmonic maps with finite total n-energy -- On a family of almost Kahler structures on the tangent bundles over some statistical models -- Recent progress on real hypersurfaces in complex two-plane Grassmannians -- Curvature of the determinant line bundle on the moduli space of null-correlation bundles -- Isotropic Kahler immersions into a complex quadric -- Professor Kouei Sekigawa and his friends in mathematic Contains a collection of research articles by active and well-known mathematicians in differential geometry and mathematical physics. These papers feature significant results while also reviewing developments in the field.