Crossed products 14 Cyclic homology 10 Crossed product 8 Braided Hopf algebras 4 Deformation 4 Galois extensions 4 Hochschild (co)homology 4 Hochschild cohomology 4 Hopf algebra 4 Hopf crossed products 4 Operator ideal 4 Primary 4 Secondary 4 ALGEBRAS DE HOPF TRENZADAS 3 BRAIDED HOPF ALGEBRAS 3 CONTEXTO MORITA 3 CROSSED PRODUCTS 3 ELEMENTOS DE TRAZA UNO 3 MORITA CONTEXT 3 PRODUCTOS CRUZADOS 3 TRACE ONE ELEMENTS 3 TRANSPOSICIONES 3 TRANSPOSITIONS 3 Calkin's theorem 2 Calkin’s theorem 2 Hopf algebras 2 K-theory 2 Karoubi's cone 2 Karoubi’s cone 2