Ayananka Bose works on projects.
In mathematics , a highly structured ring spectrum or - ring is an object in homotopy theory encoding a refinement of a multiplicative structure on a cohomology theory .. homotopy theory. homotopy theory. cohomology theory. cohomology theory. A commutative version of an - ring is called an - ring .. While originally motivated by questions of geometric topology and bundle theory , they are today most often used in stable homotopy theory .. homotopy theory. homotopy theory. geometric topology. geometric topology. bundle theory. fibre bundle. stable homotopy theory. stable homotopy theory