Laib, Chouaib2020-12-062020-12-062020http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/21695In this memory, we recalled, rst of all, Fibonacci and Lucas numbers and the identities linked to them. Next, we study Fibonacci, Lucas and Jacobsthal polynomials and some of their applications ; in particular the rediscovery of certain identities concerning Fibonacci and Lucas numbersenPolynomail, Fibonacci, Lucas, Jacobsthal, Fibonacci numbers, Lucas numbers.Thesis