I am an Assistant Professor at the Department of Mathematical Sciences at the University of Massachusetts LowellI research nonlinear functional analysis and variational analysis. 

Contact:   sedi_bartz@uml.edu

   S. Bartz, H.H. Bauschke, J.M. Borwein, S. Reich and X. Wang: "Fitzpatrick functions, cyclic monotonicity and Rockafellar's antiderivative", Nonlinear Analysis 66 (2007), 1198-1223. (pdf from Heinz Bauschke's site)  
   S. Bartz and S. Reich: "Minimal antiderivatives and monotonicity", Nonlinear Analysis 74 (2011), 59-66.   
   S. Bartz and S. Reich: "Abstract convex optimal antiderivatives", Annales de l'Institut Henri Poincaré (C) Analyse Non Linéaire 29 (2012), 435-454. (arXiv link)
   S. Bartz and S. Reich: "Optimal pricing for optimal transport", Set-Valued and Variational Analysis 22 (2014), 467-481. (arXiv link)
   S. Bartz and S. Reich: "Some aspects of the representation of c-monotone operators by C-convex functions", Journal of Convex Analysis 22 (2015), 687-710.
   S. Bartz, H.H. Bauschke, S.M Moffat and X. Wang: "The resolvent average of monotone operators: dominant and recessive properties", SIAM Journal on Optimization 26 (2016), 602-634. (arXiv link)
   S. Bartz, H.H. Bauschke and X. Wang: "The resolvent order: a unification of the orders by Zarantonello, by Loewner, and by Moreau", SIAM Journal on Optimization 27 (2017), 466-477. (arXiv link)
   S. Bartz, H.H. Bauschke and X. Wang: "A class of multi-marginal c-cyclically monotone sets with explicit c-splitting potentials", Journal of Mathematical Analysis and Applications 461 (2018), 333-348. (arXiv link)