Comes, Jonathan, 1981-2010-12-032010-12-032010-06https://hdl.handle.net/1794/10867x, 81 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.We give an exposition of Deligne's tensor category Rep(St) where t is not necessarily an integer. Thereafter, we give a complete description of the blocks in Rep(St) for arbitrary t. Finally, we use our result on blocks to decompose tensor products and classify tensor ideals in Rep(St).en-USTensor categoriesSymmetric groupsDecomposed blocksTensor productTensor idealsMathematicsTheoretical mathematicsThesis