Mathematical techniques for wave interaction with flexible structures This book presents a contemporary account of research on various mathematical numerical techniques to deal with the interaction of surface gravity waves with flexible floating submerged structures which are available in the scientific literature in a scattered manner. It emphasizes unique determination of the solution for a class of physical problems associated with Laplace or Helmholtz type equations applications of the theory of ordinary and partial differential equations Fourier Analyses etc. It provides a toolkit to a large section of the scientific community including mathematicians physicists and engineers working on fluid structure interactions