RECENT DEVELOPMENTS IN LOW-X PHYSICS

The QCD expectations for the behaviour of the deep inelastic scatterin g structure functions in the region of small values of the Bjorken par ameterxare summarized. The Balitzkij, Lipatov, Fadin, Kuraev (BFKL) eq uation which sums the leading powers of alpha(s) In(1/x) is described and confronted with the ''conventional'' formalism based on the leadin g order QCD evolution equations. The small x behaviour of the spin dep endent structure function g(1) is also discussed. The dedicated measur ements of the hadronic final state in deep inelastic scattering at sma ll a: probing the QCD pomeron are described. This includes discussion of the deep inelastic scattering accompanied by forward jets as well a s production of forward prompt photons and pi(0)-s. Finally the basic facts concerning the deep inelastic diffraction are briefly summarized .