We investigate the quantum volume of D-branes wrapped around cycles of various dimension in Calabi-Yau fourfolds and fivefolds. Examining the cases of the sextic and heptic hypersurface Calabi-Yau varieties, as well as one example in weighted projective space, we find expressions for periods which vanish at the singular point analogous to the conifold point. As in the known three-dimensional ca...

We consider a six dimensional space-time, in which two of the dimensions are compactified by a flux. Matter can be localized on a codimension one brane coupled to the bulk gauge field and wrapped around an axis of symmetry of the internal space. By studying the linear perturbations around this background, we show that the gravitational interaction between sources on the brane is described by Ei...

constructing houses in the form of garden-house became popular among statesmen and the privileged class in naseri period. iranian traditional houses which used to be formed around a central courtyard, now were organized around a garden. so the transition from houses with courtyard to garden-houses created a new order of relationships between spaces, resulted in redefining spaces and their forms...