Professor of Mathematics
Department of Mathematics
Tel: (757)
221-2024 (office)
(757) 221-1873 (Dept)
Fax: (757) 221-7400 (Dept)
E-mail: nxzobi@wm.edu
Office: Jones Hall, 118.
Research Interests:
Analysis: Function Theory,
especially spaces of smooth functions and extension theorems;
Operator Theory, especially
Mathematical Physics: Quantization, Functional Integrals, Noncommutative Quantum Gauge Field Theory, Representations and Theta Functions, Chaotic dynamical systems
Geometry: Convex geometry and Coxeter groups
Algebra: Polynomial automorphisms
of affine spaces,
Applied Mathematics: Problems of Plasma Physics, Hydrodynamics of Non-Newtonian fluids, Medical Imaging
SEMINARS.
I am coordinating an interdepartmental
MATHEMATICAL PHYSICS SEMINAR which
brings together faculty and students from various departments. We meet every
Wednesday (including summer breaks),
The
seminar continuously works since 2000, we have studied such topics as
Hamiltonian and Lagrangian formalisms, Symplectic geometry, Group representations, Chaotic dynamical systems, Introduction to Algebraic
Topology, Newton Polyhedra, Quantum Field Theory.
If you wish to be included into the seminars
mailing list and receive announcements about our meetings, please send me your
email address at nxzobi@wm.edu.
There were other seminars which we conducted
in recent years:
SEMINAR on ALGEBRO-GEOMETRIC METHODS IN
NONLINEAR EQUATIONS was working in 2002
-- 2004. We studied such topics as Solitons, Theta
Functions, Inverse Scattering Methods.
NONCOMMUTATIVE GEOMETRY SEMINAR was working
in 2001 -- 2003. We mostly studied the works of Alain Connes
and applications of these ideas to noncommutative
quantum gauge field theories.
CV, list of publications, etc. cvfmt.pdf
RECENT PAPERS (since 1998)
1. Whitney's problem on extendability of functions
and an intrinsic metric, Advances in Mathematics, vol. 133, # 1, (1998),
96-132. ext.pdf
2. Szego extremal problems,
Amer. Math. Soc. Transl., 2, vol. 184, (1998),
253-263.(reprints available)
3.
4.
5. Extension of smooth functions from finitely connected planar domains,
Journal of Geometric Analysis, vol. 9, # 3, (1999), 489-509.(reprints
available)
6. Some remarks on quasi-equivalence of bases in
Frechet spaces, Linear Algebra and Applications, vol.
307, #1-3, (2000), 47-67.quasi.pdf
7. Geometric structure of $B_{2,2}$-orbihedra and interpolation of operators, Linear and Multilin. Algebra, vol. 48, (2000), 67--91, (with V. Zobin) (reprints available)
8. Linear preservers of isomorphic types of lattices of invariant operator
ranges, Proc. of Amer. Math. Soc., vol.
129, (2001), 2981-- 2986,(with L. Rodman).operng.pdf
9. On eigenvalues and boundary curvature of
the numerical range, Linear Algebra and Applications, vol. 322,
#1-3, (2001), 129--140, (with L. Caston, M. Savova, I. Spitkovsky).numerng.pdf
10. Birkhoff's Theorem and convex hulls of Coxeter groups, Linear Algebra and Applications, vol. 347,
(2002), 219--231, (with N. McCarthy, D. Ogilvie, I. Spitkovsky).birfi.pdf
11. Convex hulls of Coxeter groups, in "Function Spaces, Interpolation Theory and
Related Topics", Walter de Gruyter,
12. Noncommutative gauge theory without Lorentz violation, Phys. Rev. D, vol. 66, (2002),
075001-8 (with C. Carlson, C. Carone).ncft.pdf
13. Convex geometry of Coxeter-invariant polytopes, Contemp.
Math., vol. 321, (2003), 153--180, (with N. McCarthy, D. Ogilvie,
V. Zobin).coxpoly.pdf
14. Finite reflection groups and linear preserver problems, Rocky
Mountains Journal of Mathematics, 34 (2004), 225-252 (with C.K. Li, I. Spitkovsky).lsz.pdf
15. $C^1$ extension of
functions and stabilization of Glaeser refinements, Revista Math. Iberoamericana,
23:2 (2007), 635-669,(with B. Klartag)
whitney\glaeserrefinements.pdf.
Teaching.
Fall 2008:
Math 412-01 Introduction to Number Theory (TR
Math 112-03 Calculus 2 (TR
Office hours: TR
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