Walter Hoh
Walter Hoh
Faculty of Mathematics
University of Bielefeld
P.O. Box 10 01 31
33501 Bielefeld
Germany
Office: V4-145
Email: hoh@math.uni-bielefeld.de
Veranstaltungen Sommersemester 2012
- Mathematik für Naturwissenschaften
II
Veranstaltungen Wintersemester 2011/12
- Mathematik für Naturwissenschaften
I
Veranstaltungen Sommersemester 2011
- Mathematische
Methoden
der
Physik
II
- Bachelorseminar Spieltheorie
Veranstaltungen Wintersemester 2010/11
- Operations Research
Veranstaltungen Sommersemester 2010
- Mathematische Methoden der Physik II
Veranstaltungen Wintersemester 2009/10
- Spezielle Aspekte der Mathematik / Differentialgleichungen
Veranstaltungen Sommersemester 2009
- Mathematik für Informatiker II / Analysis
- Bachelorseminar zur Stochastik
Veranstaltungen Wintersemester 2008/09
- Operations Research
- Mathematik für Informatiker I / Analysis
Veranstaltungen Sommersemester 2008
- Analysis C
- Seminar Dualtit�tstheorie in der Nichtlinearen Optimierung
Veranstaltungen Wintersemester 2007/08
- Analysis II
- Proseminar Fourierreihen
Veranstaltungen Sommersemester 2007
- Analysis I
- Pseudo-differential operators and Markov processes
- Proseminar Nichtlineare Optimierung
Veranstaltungen Wintersemester 2006/07
- Operations Reasearch A
- Sprungprozesse
Veranstaltungen Sommersemester 2006
- Mathematik f�r Informatiker II
- Levy-Prozesse
Veranstaltungen Wintersemester 2005/06
- Mathematik f�r Informatiker I
- Singul�re Integraloperatoren
Publications
- Quelques remarques sur la th�orie du
potentiel d'�quation
de A.N. Kolmogorov.
C.R.Acad.Sci. Paris 310 (1990) 657-659 (with N. Jacob).
- On the potential theory of the Kolmogorov
equation.
Math.Nachr. 154 (1991) 51-66 (with N. Jacob).
- Remarks on mean value properties of solutions
of second order differential operators.
Expo.Math. 9 (1991) 367-377 (with N. Jacob).
- On some translation invariant balayage spaces.
Comment.Math. Univ.Carolinae 32 (1991) 471-478 (with N. Jacob).
- Some Dirichlet forms generated by pseudo
differential operators.
Bull. Sc. Math. 116 (1992) 383-398 (with N. Jacob).
- Some commutator estimates for pseudo
differential operators with negative definite functions as symbols.
Integr.Equat.Oper.Th. 17 (1993) 46-53.
- Das Martingalproblem f�r eine Klasse von
Pseudodifferentialoperatoren.
PhD-Thesis, Universit�t Erlangen--N�rnberg (1992) 87 pages.
- The martingale problem for a class of pseudo
differential operators.
Math.Ann. 300 (1994) 121-147.
- Pseudodifferential operators, Feller semigroups
and the martingale problem.
Stochastic Processes and Optimal Control, edited by H.J. Engelbert, I.
Karatzas, M. R�ckner,
Stochastic Monographs, Vol.7, Gordon and Breach (1993) 95-103 (with N.
Jacob).
- Pseudo differential operators with negative
definite symbols and the martingale problem.
Stochastics and Stochastic Reports 55 (1995) 225-252.
- Upper bounds and conservativeness for
semigroups associated with a class of Dirichlet forms
generated by pseudo differential operators. Forum Math. 8 (1996)
107-120 (with N. Jacob).
- Feller semigroups generated by pseudo
differential operators.
Intern. Conf. Dirichlet forms and Stoch. Processes, Walter deGruyter
Verlag 1995, 199-206.
- On the Dirichlet problem for pseudo
differential operators generating Feller semigroups.
J.Funct.Anal. 137, No.1 (1996) 19-48 (with N. Jacob).
- Un calcul symbolique pour des op�rateurs
pseudo-diff�rentiels
engendrant des semigroupes de Feller. C.R. Acad. Sci. Paris, t.325,
S�rie I (1997) 1121-1124.
- A symbolic calculus for pseudo differential
operators generating Feller semigroups.
Osaka J.Math. 35, No.4 (1998) 789-820.
- Pseudo differential operators with negative
definite symbols of variable order.
Rev. Mat. Iberoamericana 16.2 (2000) 219-241.
- On perturbations of pseudo differential
operators with negative definite symbol.
Appl.Math.Optim. 45 (2002) 269-281.
- On Lp-semigroups,
capacities, and balayage.
Mini-proceedings 2nd MaPhySto Conference on L�vy Processes:
Theory and Applications (2002) 133-137.
- Towards an Lp-potential
theory for sub-Markovian semigroups: Variational inequalities and
balayage theory.
Journal of Evolution Equations 4 (2004), 297-312 (with N. Jacob).
- H�lder-continuity of harmonic functions
associated to
pseudo differential operators with negative definite symbol.
To appear in RIMS Proceeding Stochastic Analysis and Applications,
(2007). (pdf)
- Pseudo differential operators and jump
processes
with hyperbolic distributions.
Preprint (2007)