数学物理学报(英文版) ›› 2016, Vol. 36 ›› Issue (3): 655-665.doi: 10.1016/S0252-9602(16)30029-7

• 论文 • 上一篇    下一篇

SOME RESULTS ON CONTROLLED FRAMES IN HILBERT SPACES

Kamran MUSAZADEH, Hassan KHANDANI   

  1. Department of Mathematics, College of Science, Mahabad Branch, Islamic Azad University, Mahabad, Iran
  • 收稿日期:2015-06-25 出版日期:2016-06-25 发布日期:2016-06-25
  • 通讯作者: Kamran MUSAZADEH,E-mail:kamran_ms2004@yahoo.com E-mail:kamran_ms2004@yahoo.com
  • 作者简介:Hassan KHANDANI,E-mail:khandani.hassan@yahoo.com
  • 基金资助:

    Supported by IAU-Mahabad branch (51663931105001).

SOME RESULTS ON CONTROLLED FRAMES IN HILBERT SPACES

Kamran MUSAZADEH, Hassan KHANDANI   

  1. Department of Mathematics, College of Science, Mahabad Branch, Islamic Azad University, Mahabad, Iran
  • Received:2015-06-25 Online:2016-06-25 Published:2016-06-25
  • Contact: Kamran MUSAZADEH,E-mail:kamran_ms2004@yahoo.com E-mail:kamran_ms2004@yahoo.com
  • Supported by:

    Supported by IAU-Mahabad branch (51663931105001).

摘要:

We use two appropriate bounded invertible operators to define a controlled frame with optimal frame bounds. We characterize those operators that produces Parseval controlled frames also we state a way to construct nearly Parseval controlled frames. We introduce a new perturbation of controlled frames to obtain new frames from a given one. Also we reduce the distance of frames by appropriate operators and produce nearly dual frames from two given frames which are not dual frames for each other.

关键词: frames, Parseval frames, dual frames, controlled frames, reconstruction formula, perturbation

Abstract:

We use two appropriate bounded invertible operators to define a controlled frame with optimal frame bounds. We characterize those operators that produces Parseval controlled frames also we state a way to construct nearly Parseval controlled frames. We introduce a new perturbation of controlled frames to obtain new frames from a given one. Also we reduce the distance of frames by appropriate operators and produce nearly dual frames from two given frames which are not dual frames for each other.

Key words: frames, Parseval frames, dual frames, controlled frames, reconstruction formula, perturbation

中图分类号: 

  • 94A12