Dear all,

The next Banach spaces webinar is on Friday May 1st 9AM CDT (e.g., Dallas, TX time). Please join us at

https://unt.zoom.us/j/512907580

Speaker: Dan Freeman, St Louis University Title: A Schauder basis for $L_2$ consisting of non-negative functions

Abstract. We will discuss what coordinate systems can be created for $L_p(\mathbb R)$ using only non-negative functions with $1\leq p<\infty$. In particular, we will describe the construction of a Schauder basis for $L_2(\mathbb R)$ consisting of only non-negative functions. We will conclude with a discussion of some related open problems. This is joint work with Alex Powell and Mitchell.

Upcoming schedule May 8: Chris Gartland, UIUC May 15 Gideon Schechtman Weizmann Institute of Science May 22 Pedro Tradacete Instituto de Ciencias Matemáticas May 29 Miguel Martin University of Granada June 5 Denny Leung National University of Singapore June 12 Noé de Rancourt Kurt Gödel Research Center June 19 Christian Rosendal UIC and NSF June 26 Pete Casazza University of Missouri

For more information past talks and videos please visit the webinar website http://www.math.unt.edu/~bunyamin/banach

Thank you, and best regards,

Bunyamin Sari