December 2020 - Banach - mathdept.okstate.edu

Banach spaces webinar tomorrow 12/15 by Keith Ball-slight time change
by Sari, Bunyamin 14 Dec '20

14 Dec '20

Dear all, This seminar (the original announcement is below) will start 30 minutes later at 10:30AM CDT to avoid time conflict with AGA seminar. 10:30AM CDT 4:30pm London 5:30pm Paris, Berlin, Prague 6:30pm Jerusalem Hope to see you then. Best regards, Bunyamin *************** Dear all, We have a special talk on Tuesday, December 15 at 10AM CDT (please note the unusual day and time). The talk is a tribute to the greatest Jean Bourgain who passed away almost 2 years ago on December 22, 2018. Please join us at https://unt.zoom.us/j/512907580 Speaker: Keith Ball, University of Warwick Title: Restricted Invertibility Abstract: I will briefly discuss the Kadison-Singer problem and then explain a beautiful argument of Bourgain and Tzafriri that I will include in a forthcoming article in a volume dedicated to Jean Bourgain. For more information about the past and future talks, and videos please visit the webinar website http://www.math.unt.edu/~bunyamin/banach Thank you, and best regards, Bunyamin Sari

1 0

Banach spaces webinar on Tuesday 12/15 (note the unusual time) by Keith Ball (Warwick)
by Sari, Bunyamin 11 Dec '20

11 Dec '20

Dear all, We have a special talk on Tuesday, December 15 at 10AM CDT (please note the unusual day and time). The talk is a tribute to the greatest Jean Bourgain who passed away almost 2 years ago on December 22, 2018. Please join us at https://unt.zoom.us/j/512907580 Speaker: Keith Ball, University of Warwick Title: Restricted Invertibility Abstract: I will briefly discuss the Kadison-Singer problem and then explain a beautiful argument of Bourgain and Tzafriri that I will include in a forthcoming article in a volume dedicated to Jean Bourgain. For more information about the past and future talks, and videos please visit the webinar website http://www.math.unt.edu/~bunyamin/banach Thank you, and best regards, Bunyamin Sari

1 0

Banach spaces webinar on Friday 12/11 by José Luis Ansorena (Universidad de La Rioja)
by Sari, Bunyamin 07 Dec '20

07 Dec '20

Dear all, The next Banach spaces webinar is on Friday December 11 at 9AM CDT (e.g., Dallas, TX time). Please join us at https://unt.zoom.us/j/512907580 Speaker: José Luis Ansorena (Universidad de La Rioja) Title: On the permutative equivalence of squares of unconditional bases Abstract: We prove that if the squares of two unconditional bases are equivalent up to a permutation, then the bases themselves are permutatively equivalent. This settles a twenty two year-old question raised by Casazza and Kalton in [Uniqueness of unconditional bases in Banach spaces, Israel J. Math. 103 (1998), 141--175]. Solving this problem provides a new paradigm to study the uniqueness of unconditional basis in the general framework of quasi-Banach spaces. Multiple examples are given to illustrate how to put in practice this theoretical scheme. This is joint work with Fernando Albiac. For more information about the past and future talks, and videos please visit the webinar website http://www.math.unt.edu/~bunyamin/banach Best regards, Bunyamin

1 0

post-doc position at the University of São Paulo
by valentin ferenczi 02 Dec '20

02 Dec '20

Dear colleague, We would like to announce a post-doctoral position in the Department of Mathematics of the University of São Paulo (Brazil) within the scope of Geometry of Banach spaces. This position is for a period of 12 to 24 months and must end on January 31th 2023 at the latest. The initial date of the activities is negotiable, but preferably between February and September 2021, and the deadline to apply is January 15th, 2021. The position is available as part of the FAPESP Thematic Project "Geometry of Banach spaces": https://geometryofbanachspaces.wordpress.com/ The position has no teaching duties and includes a monthly stipend which is, as of December 1, 2020 of BRL 7373,10 (tax free). It also includes partial support for travel and the first expenses upon arrival, as well as Research Contigency Funds equivalent to 15% of the fellowship. All relevant information may be found at https://geometryofbanachspaces.wordpress.com/postdoc-position-open/ Don't hesitate to contact me for additional information. All the best, Valentin Ferenczi.

1 0