**Adrian Ionescu, Ph.D.**

Professor

Department of Mathematics and Computer Science

Wagner College

One Campus Road

Staten Island, NY 10301

*Phone*: (718) 390-3245

*Email*: ionescu@wagner.edu

**RESEARCH INTERESTS**

Formal languages, language equations, programming languages, computer networks, functional analysis, system analysis, numerical analysis.

**EDUCATION**

Ph.D., Mathematics, Texas A&M University

M.S., Computer Science, University of Houston

M.S., B.S., Mathematics, University of Bucharest

**WORK EXPERIENCE**

2005-present: Professor of Mathematics & Computer Science, Wagner College

2001-2007: Chair Department of Mathematics & Computer Science, Wagner College

2000-2005: Associate Professor of Mathematics & Computer Science, Wagner College

1998-2000: Assistant Professor of Mathematics, University of St. Thomas

1994-1998: Assistant Professor of Mathematics & Computer Science, Texas Lutheran University

1991-1994: TA, Department of Mathematics, Texas A&M University

1988-1991: Research Scientist, Institute of Mathematics, Romanian Academy

1985-1988: Faculty, University of Bucharest & H.S. Hirsova

**MEMBERSHIP**

Member ACM

Board Member CCSCNE (2007 - present), Treasurer (2008 - present)

Conference Chair CCSCNE 2008

Member Conference Committee CCSCNE 2006, CCSCNE 2007, CCSCNE 2009, CCSCNE 2010, CCSCNE 2011, CCSCNE 2012.

Member Organizing Committee WSEAS (ISTASC '08)

# Publications

*SELECTED PAPERS *

- (With E.L. Leiss)
*On the role of complementation in implicit language equations and relations*, Journal of Computer and System Sciences,**80**(2), 2014, 457-467 - (With M. Ruth)
*Cyber-Politics: Developing an Interdisciplinary Learning Community in an Election Year*, The Journal of Computing Sciences in Colleges**25**(5), 2010, p. 94-100. *Integrating Some New Methods in a Numerical Analysis Course*, Proceedings of MathFest 2009 (Abstract), 2009, p. 48, Portland, OR, August 6-8, 2009.- (With R. Wyatt, et al)
*Programming Languages Matter*, Journal of Computing Sciences in Colleges,**24**(6), 2009, p. 139-143. - (With O. Johnson)
*C Software for Some New Autonomous Methods*, Proceedings of the 7th WSEAS International Conference on SYSTEMS THEORY and SCIENTIFIC COMPUTATION - ISTASC'07, p.180-184, Athens, Greece, August 24-26, 2007. - (With R.O. Abbasian)
*Theorem Validation in Applied Mathematics Using Symbolic Computation Systems,*Proceedings of ICTM-3, Istanbul, Turkey, June 30-July 5, 2006. - (With R.O. Abbasian and O. Johnson)
*Maple and C Software for Some Autonomous Numerical Methods*, Proceedings of MC 2005, Waterloo, Canada, July 17-20, 2005. - (With P. Pedersen & J. Schneider)
*Computer Model for the Zebra Fish Brain,*The Journal of Computing Sciences in Colleges (Abstract),**20**(5), 2005, p. 110. - (With R.O. Abbasian)
*Use of Maple in Some New Non-Autonomous Numerical Methods*, Proceedings of MSW 2004, Waterloo, Canada, July 11-14, 2004. - (With G. Harmon)
*Search Engines,*The Journal of Computing Sciences in Colleges (Abstract),**19**(5), 2004, p. 336. - (With R.O. Abbasian)
*Exploring The Common Misuses Of Maple In Undergraduate Mathematics*, Proceedings of MSW 2004, Waterloo, Canada, July 11-14, 2004. - (With C. Hagis & T. Sheeran)
*Modern Computer Science and Architecture in Designing and Constructing a Robot,*The Journal of Computing Sciences in Colleges (Abstract),**18**(5), 2003, p.268. - (With E.L. Leiss)
*Solving Derivative Equations,*Proceedings of CLEI 2003, La Paz, Bolivia, September 29-October 2, 2003. - (With J. Nadal)
*Streaming Data Driven Applets and Pages,*The Journal of Computing Sciences in Colleges (Abstract),**17**(6), 2002, p.287-288. - (With R.O. Abbasian)
*Case Studies in the Shortcomings of MAPLE in Teaching Mathematics*, Proceedings of ICTM-2, Hersonissos, Crete, Greece, July 1-6, 2002. *A Functional Calculus for Pairs of Commuting Polynomially Bounded Operators*, Houston J. Math,**24**(1), 1998, 97-104.*Expanding the joint spectrum of pairs of commuting contractions*, Proc. Amer. Math. Soc.,**124**(12), 1996, 3711-3719.- (With V. La Bella et al)
*Apoptosis induced by beta-N-oxalylamino-L-alanine on a motoneuron hybrid cell line*, Neuroscience,**70**(4), 1996, 1039-1052. *On the operator-valued Nevanlinna-Pick problem*, Zeitschrift für Analysis und ihre Anwendungen,**14**(3), 1995, 431-439.

**TEXTBOOK**

- (With R.O. Abbasian)
*Vector Calculus with Maple*,*3rd Edition*, Houghton Mifflin, Boston, 2003. (ISBN 0-618-43924-2). - (With R.O. Abbasian)
*Vector Calculus with Maple*,*2nd Edition*, Houghton Mifflin, Boston, 1999. (ISBN 0-618-04115-x). - (With R.O. Abbasian)
*Vector Calculus with Maple*, McGraw-Hill, New York, 1996. (ISBN 007-00032-8).

**Introduction.** Teaching multivariable calculus, which is the study of curves and surfaces in space, can definitely be enhanced by using the 3-D graphics, and the spacial vector capabilities of Maple. This book provides a new look at vector calculus by integrating the use of Maple with the traditional vector calculus curriculum. Close examination of this text will show that while the method of presenting the topics makes extensive use of Maple, this innovation has been introduced without significantly revising the traditional topics. We have deliberately decided to guide instructors and students through material which is familiar to the instructors, to investigate and compare the capabilities of Maple with the more traditional presentation of vector calculus. As a result, this text can be used in place of a traditional vector calculus text without causing any radical changes in the subject matter.

*PLENARY LECTURE *

*A Performance Analysis of Some New Goeken-Johnson Methods versus the Classical Runge-Kutta Methods*The Proceeding of the 8th WSEAS International Conference on SYSTEMS THEORY and SCIENTIFIC COMPUTATION, p.13, ISTASC'08, Rhodes, Greece, August 20-22, 2008.

**SELECTED CONFERENCE PAPERS**** (Presentations)**

*Integrating Some New Methods in a Numerical Analysis Course*, MathFest 2009, Portland, OR, August 6-8, 2009.- (With O. Johnson)
*C Software for Some New Autonomous Methods*7th WSEAS International Conference on SYSTEMS THEORY and SCIENTIFIC COMPUTATION - ISTASC'07, p.182-187, Athens, Greece, August 24-26, 2007. - (With F. Pop and R.O. Abbasian)
*A Novel Use of Maple and C in Teaching Differential Equations and Numerical Analysis**,*ICTM3, Istanbul, Turkey, June 30-July 5, 2006. - (With R.O. Abbasian and O. Johnson)
*Maple and C Software for Some Autonomous Numerical Methods*, MC 2005, Waterloo, Canada, July 17-20, 2005. - (With R.O. Abbasian)
*Use of Maple In Some New Non-Autonomous Numerical Methods*, MSW 2004, Waterloo, Canada, July 11-14, 2004. - (With R.O. Abbasian)
*Exploring The Common Misuses Of Maple In Undergraduate Mathematics*, MSW 2004, Waterloo, Canada, July 11-14, 2004. - (With E.L. Leiss)
*Solving Derivative Equations*, CLEI 2003, La Paz, Bolivia, September 29 - October 2, 2003. - (With R.O. Abbasian)
*Case Studies in the Shortcomings of MAPLE in Teaching*ICTM-2, Hersonissos, Crete, Greece, July 1-6, 2002.**Mathematics**, - (With R.O. Abbasian)
*Use Of A MAPLE - C Interface In Teaching Ordinary Differential Equation*ICTM-2, Hersonissos, Crete, Greece, July 1-6, 2002.

**ADVISOR STUDENT PAPERS ****(at Wagner College)**

- (With M. Burke et al)
*The Spherical Pendulum Analysis using C/C++ for Some New Numerical Analysis Methods*, CCSCNE-2010, Hartford, April 16-17, 2010. - (With J. Domante et al)
*Using C/C++ in Some Special Numerical Analysis Methods*, CCSCNE-2008, Staten Island, NY, April 11-12, 2008. - (With M. Cannizzo)
*Reverse Engineering and Computer Science Reprogramming*, CCSCNE-2007, Rochester IT, Rochester, April 20-21, 2007. - (With M. Cannizzo)
*Telepresence and Its Application in Real World Situations*, CCSCNE-2006, Worcester, MA, April 21-22, 2006. - (With P. Pedersen & J. Schneider)
*Computer Model for the Zebra Fish Brain,*CCSCNE-2005, Providence, RI, April 22-23, 2005. - (With G. Harmon)
*Search Engines,*CCSCNE-2004 Schenectady, New York, April 23-24, 2004. - (With C. Hagis & T. Sheeran)
*Modern Computer Science and Architecture in Designing and Constructing a Robot*, CCSCNE-2003, Providence, RI, April 25-26, 2003. - (With J. Nadal)
*Streaming Data Driven Applets and Pages,*CCSCNE-2002, Worcester, MA, April 19-20, 2002.