Neˇ cas Center for Mathematical Modeling ON GEOMETRIC PROPERTIES OF THE SPACES L p(x) Jaroslav Lukeˇ s, Luboˇ s Pick and Duˇ san Pokorn´ y Preprint no. 2009-009 Research Team 1 Mathematical Institute of the Charles University Sokolovsk´ a 83, 186 75 Praha 8 http://ncmm.karlin.mff.cuni.cz/