 
 
Dr. Eric Jonathan Hall 
Division of Computing, Analytics, and Mathematics
School of Science and Engineering
UMKC
 Office: Flarsheim 510-E (map)
  Phone: 816-235-5852  
  Email: halle@umkc.edu
I have been a member of the mathematics faculty
at UMKC since August 2003.
Some prior associations:
Maybe some of you know me from my three years as
a professor at Purdue University, or my five years
as a graduate student at the University of Michigan,
or my twenty-four years attending to various
matters in the state of Minnesota (I've lived in Minneapolis,
Northfield, and Edina, and I worked at Unisys in Roseville for
a couple years). 
During Fall 2011, I was visiting the University of the Aegean
in the town of Karlovasi.
Research Papers in Set Theory.    Titles which
are links are links to PDF files.
- Characterizing permutation models - 
 
- Other - 
 
   - 
       The existence of free ultrafilters on ω does not imply the
       extension of filters on ω to ultrafilters
       
 (with K. Keremedis and E. Tachtsis),
       Math. Logic Quarterly 59(3), 2013.
- 
       
       Partial choice functions for families of finite sets 
       
 (with S. Shelah),
       Fundamenta Mathematicae 220, 2013.
- 
       
       On BPI restricted to Boolean algebras of size continuum
       
       
 (with K. Keremedis),
       Bull. Pol. Acad. Sci., Math. 61(1), 2013.
- 
       
       Čech-Stone compactifications of discrete spaces in ZF and
       some weak forms of the Boolean prime ideal theorem
       
 (with K. Keremedis),
       Topology Proceedings 41, 2012.
- 
       
       Unions and the axiom of choice 
       
 (with O. De la Cruz, P. Howard, K. Keremedis, and J. Rubin),
       Math. Logic Quarterly 54, 2008.
- 
       
       Definitions of finiteness based on order properties 
       
 (with O. De la Cruz and D. Dzhafarov),
       Fundamenta Mathematicae 198, 2006.
- 
       
       Properties of the real line and weak forms of the axiom of choice
       
 (with O. De la Cruz, P. Howard, K. Keremedis, and E. Tachtsis),
       Math. Logic Quarterly 51(6), 2005.
- 
       
       Metric spaces and the axiom of choice
       
 (with O. De la Cruz, P. Howard, K. Keremedis, and J. Rubin),
       Math. Logic Quarterly 49(5), 2003.
- 
       
       Products of compact spaces and the axiom of choice II
       
 (with O. De la Cruz, P. Howard, K. Keremedis, and J. Rubin),
       Math. Logic Quarterly 49(1), 2003.
- 
       
       Products of compact spaces and the axiom of choice
       
 (with O. De la Cruz, P. Howard, K. Keremedis, and J. Rubin),
       Math. Logic Quarterly 48(4), 2002.
- 
       Definitions of compactness and the axiom of choice
       
 (with O. De la Cruz, P. Howard, J. Rubin, and A. Stanley),
       J. Symbolic Logic 67(1), 2002.