dc.contributor.author |
Kayumov I. |
|
dc.date.accessioned |
2018-09-19T22:11:05Z |
|
dc.date.available |
2018-09-19T22:11:05Z |
|
dc.date.issued |
2017 |
|
dc.identifier.issn |
1995-0802 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/144828 |
|
dc.description.abstract |
© 2017, Pleiades Publishing, Ltd.Let D be the unit disk centered at the origin in the complex plane. In this paper we consider an extremal problem for an area-type functional in the space B of Bloch functions with the seminorm ||b||B = sup{(1 − |z|2)|b’(z)|: z ∈ D}. We show that sup{Σk=1n k|bk|2: ||b||B ≤ 1} = nBn2, n = 1, 2, 3, 4, 5, where bk are the Taylor coefficients of b and Bn = sup{|bn|: ||b||B ≤ 1}. |
|
dc.relation.ispartofseries |
Lobachevskii Journal of Mathematics |
|
dc.subject |
area’s functional |
|
dc.subject |
Bloch space |
|
dc.title |
A note on an area-type functional of Bloch functions |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
3 |
|
dc.relation.ispartofseries-volume |
38 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
466 |
|
dc.source.id |
SCOPUS19950802-2017-38-3-SID85019668832 |
|