Previous article No AccessEssentially Ergodic BehaviourPaula ReichertPaula Reichert Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited The British Journal the Philosophy of Science Just Accepted Society: Society Views: 17Total views on site Ar...

We call a module  essentially retractable if HomR for all essential submodules N of M. For a right FBN ring R, it is shown that: (i)  A non-zero module  is retractable (in the sense that HomR for all non-zero ) if and only if certain factor modules of M are essentially retractable nonsingular modules over R modulo their annihilators. (ii)  A non-zero module  is essentially retractable if and on...

Essentially generalizing Lie's results, we prove that the contact equivalence groupoid of a class (1+1)-dimensional generalized nonlinear Klein-Gordon equations is first-order prolongation its point groupoid, and then carry out complete group classification this class. Since it normalized, algebraic method naturally applied here. Using specific structure class, essentially employ classical Lie ...