A classical problem in ring theory is to study conditions under which a ring is forced to become commutative.Stimulated from Jacobson's famous result,severa
In this paper,we define robust weak ergodicity and study the relation betweenrobust weak ergodicity and stable ergodicity for conservative partially hyperbo
It is shown that an arbitrary function from DR n to R m will become C 0,α continuous in almost every x ∈ D after restriction to a certain subset with limit