The studies of neutron emission in Z-pinches are analyzed this work. available ideas concerning the nature contradictory. terms "fusion mechanism" and "acceleration used publications generation unable to explain all characteristic properties observed experimentally. physical grounds for using these mechanisms also not fully confirmed. revision existing theoretical approaches makes it possible r...

We introduce an invertible operation on finite sequences of positive integers and call it “kneading”. Kneading preserves three invariants of sequences — the parity of the length, the sum of the entries, and one we call the “alternant”. We provide a bijection between the set of sequences with alternant a and parity s and the set of Zagier-reduced indefinite binary quadratic forms with discrimina...