|
|
|
|
the log-convexity of the fubini numbers
|
|
|
|
|
|
|
|
نویسنده
|
zou qing
|
|
منبع
|
transactions on combinatorics - 2018 - دوره : 7 - شماره : 2 - صفحه:17 -23
|
|
چکیده
|
Let fn denotes the nth fubini number. in this paper, first we give upper and lower bounds for the fubini numbers fn. then the log-convexity of the fubini numbers has been obtained. furthermore we also give the monotonicity of the sequence {fn−−√n}n≥1 by using the aforementioned bounds.
|
|
کلیدواژه
|
fubini number ,logconvexity ,monotonicity
|
|
آدرس
|
the university of iowa, department of mathematics, usa
|
|
پست الکترونیکی
|
zou-qing@uiowa.edu
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|