Almost Complex Structures

Abstract

Almost complex structures on spaces, associated singularities and foliations, K. Spallek analytic almost complex structures, S. Dimiev and F. Succi integration on nonorientable Riemann surfaces, I. Barza on the complex Frobenius theorem, L. Apostolova some integral formulae for generalized hyperholomorphic functions, M.S. Marinov on some classes of non-analytic and non-Gevrey hypoelliptic equations, P.R. Popivanov almost complex structures on twistor spaces, J. Davidov et al almost quaternionic Hermitian and Quasi-Kahler manifolds, D.V. Alekseevsky and S. Marchiafava oriented 6-dimensional submanifolds in the octonians, H. Hashimoto Hermitian and associated curvatures on Hermitian manifolds, G. Ganchev some topics in geometry of almost Hermitian manifolds, K. Sekigawa.