Paper 2, Section II, F
Part IB, 2012
(i) Define the transpose of a matrix. If and are finite-dimensional real vector spaces, define the dual of a linear map . How are these two notions related?
Now suppose and are finite-dimensional inner product spaces. Use the inner product on to define a linear map and show that it is an isomorphism. Define the adjoint of a linear map . How are the adjoint of and its dual related? If is a matrix representing , under what conditions is the adjoint of represented by the transpose of ?
(ii) Let be the vector space of continuous real-valued functions on , equipped with the inner product
Let be the linear map
What is the adjoint of