Cognitive function in the elderly is affected by various environmental,social,and individual factors.Studies show that chemical trace elements are closely relat
In this paper,by making use of the calculous technique and some results of the impulsive differential inequality,oscillatory properties of the solutions of cert
In this paper,we prove that the generalized Roper-Suffridge extension operator can be embedded in Loewner chains on the unit ball in Hibert spaces,and obtain th