Valentin Matache---Vita---May 2008

Education

• B.S. University of Timisoara (Romania) 1982
• I-st Ph.D. University of Timisoara (Romania) 1994
• II-d Ph.D. The University of Kansas 1998

   

Profesional History

• Junior-High and High School Math. Instructor 1982-1985
• Math. Instructor University of Timisoara 1985-1990
• Assistant Professor University of Timisoara 1990-1994
• GTA The University of Kansas 1994-1998
• Assistant Professor The University of Puerto Rico 1998-1999
• Assistant Professor The University of Nebraska at Omaha 1999-2003
• Associate Professor The University of Nebraska at Omaha 2003- 2008
• Professor The University of Nebraska at Omaha  2008-present

Talks

• Spectrum of a composition operator on weighted sequence spaces , The 4-th National Conference on Functional Analysis , Univ. of Craiova (Romania) , 1987
• On the Mobius invariant function spaces , International Conference on Complex Function Theory , Bucarest 1988
• Hilbert spaces with operator valued reproducing kernel , 5-th National Conference on Functional Analysis , Univ. of Craiova (Romania), 1989
• On the invariant subspaces of the hyperbolic composition operator , 12-th International Conference on Operator Theory , Predeal (Romania) , 1990
• Operators having dense orbits , 13-th International Conference on Operator Theory , Timisoara (Romania), 1992
• Contractions having hypercyclic scalar multiples , International Conference on Functional Analysis and Applications in honour of B. Sz.-Nagy , Szeged (Hungary) , 1993
• Invariant subspaces of some universal operators acting on spaces of holomorphic functions , International Conference on Complex Analysis , Timisoara (Romania) 1993
• Some spectral properties of hypercyclic operators ,23-d International Seminar in Functional Analysis , Paseky (Cech Republic) 1993
• Latest developments in hypercyclic operator theory, 15-th International Conference on Operator Theory, Timisoara (Romania) 1994
• Operators having dense orbits, GPOTS(Great Plains Operator Theory Simposium) 1995, Cincinnati, Ohio, May 17-20 1995
• The eigenfunctions of a certain composition operator, GPOTS 1996, Tempe, Arizona, May 22--26 1996
• Minimal invariant cyclic subspaces for the hyperbolic composition operator, RMMC Summer Conference "Composition Operators on Spaces of Analytic Functions", Laramie, Wyoming, July 8-19 1996
• Composition operators on Hardy spaces of a half-plane, GPOTS 1997, Kingston (Canada), May 1997
• Composition operators on Hardy spaces of a half-plane, AMS regional Meeting, Milwaukie, WI, 1997 (see Notices of the AMS, vol. 44, no. 9, Oct. 1997, pp. 1244)
• Composition Operators and a Certain Pull-Back Measure Formula, 932-nd AMS Regional Meeting, Manhattan, KS March 27-28, 1998
• Zero-Free Solutions for the Schroeder Functional Equation on the Ploydisk, Mathematics and Statistics Centennial Celebration, University of Nebraska, Lincoln, NE May 14-16, 1998
• Carleson Measures and Composition Operators, GPOTS 1998, Manhattan, KS May 27-31, 1998
• Numerical Ranges of Composition Operators, AMS Regional Meeting 936, Winston-Salem, NC, October 9-10, 1998
• Invertible Composition Operators and the Invariant Subspace Problem, XIV-th SIDIM, San Juan, Puerto Rico, April 10, 1999
• Numerical Ranges, Composition Operators, and Computer Assisted Analysis , Iowa-Nebraska Functional Analysis Seminar, Drake Univ., Des Moines, IA, October, 1999
• The Numerical Range or the field of Values of a Linear operator , Second Regional Workshop in Mathematics and Statistics, Lincoln, NE, November 1999
• The Numerical Ranges of Certain Hilbert Space Operators , workshop in Linear Analysis and Probability, Texas A&M Univ., August 2000
• Operator Self-Similar Stochastic Processes , SUMIRFAS 2000, Texas A&M Univ., August 2000.
• Numerical Ranges of Some Special Classes of Operators , 2001 Spring Central Section Meeting of the AMS, March 30-31, 2001 Lawrence, KS (Meeting # 964, Notices Program Issue: May 2001).
• Function Theory and Operator Theory , Fourth Regional Workshop in Mathematical Sciences, Lincoln, NE, November 2001.
• Operator Semigroups and Stochastic Processes , GPOTS(Great Plains Operator Theory Symposium) 2002, Charlotte, North Carolina, May 22-25, 2002.
• When are composition operators close to each other? , Sixth Regional Workshop in Mathematical Sciences, Lincoln, NE, November 7--8, 2003.
• Composition operators and strong convergence of iterate sequences to the Denjoy-Wolff point , 20th International Conference on Operator Theory June 30 - July 5, 2004 West University Timisoara, Timisoara, Romania.
• On norms of and distances between composition operators , 1015-TH AMS Meeting, Forida International University, Miami, FL, April 1--2, 2006.
• Composition and weighted composition operators on Hardy and Hardy-Smirnov spaces, Complex & Harmonic Analysis, Thessaloniki, Greece, May 25-27, 2006.
• S-Toeplitz composition operators, GPOTS(Great Plains Operator Theory Symposium) 2007, May 15-20, Lincoln, NE.
• Some problems in functional operator theory exhibiting a nice interplay between operator theory and function theory, Iowa-Nebraska Functional Analysis Seminar, Drake Univ., Des Moines, IA, April, 2008.

Publications

Teaching Awards

• Alumni Outstanding Teaching Award 2003, University of Nebraska, Omaha NE.
• Kerrigan Award for Excellence in the Teaching of Mathematics 2005, University of Nebraska, Omaha NE.

Mathematics Education Activity

• Coached for Romanian Olimpic Team 1985
• Co-Organized yearly the Math. Competition Traian Lalescu for High School Kids hosted by University of Timisoara 1986-1994
• Taught Problem Solving Course for Duke University, TIP (Talent Identification Program, for Junior-High School Kids) 1995

High School Level Mathematics Publications

• Tests and solved problems for the National Contest Traian Lalescu , Univ. of Timisoara , Problem book 7(1987)
• Tests and solved problems for the National Contest Traian Lalescu , Univ. of Timisoara , Problem book 8(1988)
• On the Fibonacci sequence , Romanian Math. Gazette B , 3(1989) ,97-104