Searches for anomalous interactions in rare kaon decays

Feasible searches for anomalous processes involving New Physics in rare decays of K-mesons are considered. Discussed are searches for lepton flavor nonconservation in kaon decays, searches for anomalous scalar, pseudoscalar, and tensor interactions, and searches for nonstandard processes violating T- (or CP-) invariance in the decays of charged K-mesons. Considered also are searches for new light particles (the P-sgoldstino) in kaon decays and studies involving 'tagged' π0-mesons produced in K0L→3π0 and K+→ π+π0 decays, as well as a number of other phenomena. The prospects of future experiments in this field being carried out at new experimental facilities are discussed. (reviews of topical problems)