The Advances in Operator Theory is published by Birkhäuser on behalf of the Tusi Mathematical Research Group. Mean Time to Final Acceptance (days): 150. Mean Time to Final Rejection (days): 31. Advances in Operator Theory is a peer-reviewed electronic journal publishing survey articles and original research papers of high standards with deep results, new ideas, profound impact, and significant implications in all areas of operator theory and all modern related topics (e.g., functional analysis). Two related journals are Banach Journal of Mathematical Analysis and Annals of Funtional Analysis. Advances in Operator Theory presents the best paper award yearly. The award in the year n is given to the best paper published in the years n-1 and n-2. The referee committee consists of selected editors of the journal. Please click on the ‘Journal updates’ tab to see previous volumes published until 2019. AMS Mathematical Citation Quotient (MCQ): 0.55 (2021).