Web page for Joseph F. Johnson
My office is Mendel 292F, at Villanova.
Telephone: (610) 5195416
Email: joseph.f.johnson at0symbol yaknow villanova.edu
Pictures
There is a small collection of
family
pictures;
Here will be some.
I have published on the problem in the axiomatics of Quantum Mechanics
which Wigner called
Quantum Duality, although it is now more usually
called Quantum Measurement.
abstract.
Selected
Publications
 Lie Algebra Cohomology and the Resolution of Certain HarishChandra
Modules, Mathematische Annalen, vol. 267 (1984), pp. 377393
 Endoscopic groups and stable packets of certain derived Functor
Modules, with Jeffrey Adams in: The Selberg Trace Formula and
Related Topics, Hejhal, Sarnak, and Terras, eds., Contemporary
Mathematics vol. 53 (1986), pp. 110
 Endoscopic Groups and Packets of nonTempered Representations,
with Jeffrey Adams, Compositio Mathematica, vol. 64 (1987), pp.
271309
 Stable Base Change C/R of Certain Derived Functor Modules, Mathematische
Annalen, vol. 287 (1990), pp. 467493
 Character Identities between Different Real Reductive Lie Groups,
Accepted, Advances in Mathematics
 Galoistwisted EulerPoincare Characteristics of Complex Algebraic
Groups, Crelle's Journal, vol. 568 (2004), pp. 122.
 Thermodynamic Limits, Quantum Entanglement, and NonCommutative Probability, in, Quantum Theory and Symmetries III, edited by Argyres et al., Singapore, 2004, pp. 133143.
 Statistical Mechanics of Amplifying Apparatus , in, Proc. VIII Internat. Wigner Symposium, NYC 2003, edited by Catto and Nicolescu, to appear.
Problems of Quantum Measurement
(.pdf file)
an abstract
Logical Structure of Physical Probability Assertions
Teaching
I am currently visiting the University of New Hampshire and teaching
there. I will be visiting the University of Notre Dame over the summer.
At Villanova, I am on the research faculty.
Mathematics

Some of my
papers, and. soon, my
updated vita

The Mathematics
Genealogy Project. This is a database of mathematics thesis
advisors and their students. It is more than a little Germanocentric, for example,
it misinterprets Dirichlet's thesis experience. His adviser was
Legendre, not either Poisson or Fourier, both of whom despised
number theory.

There is a wonderful site at the University of St. Andrews for mathematical
history, including biographies of more than a thousand
mathematicians.
an index of recent relevant papers on
Quantum Information Theory maintained by the research group in Italy.
The homepage of the distinguished mathematician, and
former chair of the M.I.T. math dept., David Vogan.
An interesting todo list of an expert in quantum statistics
A very modest proposal relevant to
Quantum Measurement formalisms of a very general nature.
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