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**John Emory Dennis, Jr. ** (born 1939) is an American mathematician who has made major contributions in mathematical optimization. Dennis is currently a Noah Harding professor emeritus and research professor in the department of computational and applied mathematics at Rice University in Houston, Texas. His research interests include optimization in engineering design. He is the founder and editor-in-chief of the *SIAM Journal on Optimization*.^{[1]} In 2010, he was elected a Fellow of the Society for Industrial and Applied Mathematics.^{[2]}^{[3]}

John E. Dennis | |
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Alma mater | University of Miami University of Utah |

Awards | Fulbright Scholar (1986) SIAM Fellow (2010) |

Scientific career | |

Fields | Numerical computation Mathematical optimization |

Institutions | University of Utah Cornell University Rice University |

Thesis | Variations on Newton's Method (1966) |

Doctoral advisor | Robert E. Barnhill |

Doctoral students |

Dennis earned a Bachelor of Science in Industrial Engineering (BSIE), in 1962 and a Master of Science in mathematics in 1964 at the University of Miami. He earned a Ph.D. in mathematics at the University of Utah in 1966.^{[4]}

- University of Utah, Department of Mathematics, Assistant Professor, 1966–1967
^{[4]} - Cornell University, Department of Computer Science, full professor, 1969–1974
^{[4]} - Rice University, Department of Computational and Applied Mathematics, full professor (retired), 1979–2007
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- At Rice, Dennis served as department chairman in both the Department of Computational and Applied Mathematics (CAAM) and Department of Computer Science (CS). He was also the chair of the Center for Research in Parallel Computing (CRPC) Optimization Project. He was the thesis director for 32 PhD students at Rice.
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- At Rice, Dennis served as department chairman in both the Department of Computational and Applied Mathematics (CAAM) and Department of Computer Science (CS). He was also the chair of the Center for Research in Parallel Computing (CRPC) Optimization Project. He was the thesis director for 32 PhD students at Rice.

*On the matrix polynomial, lambda-matrix and block eigenvalue problems*(1971). Pittsburgh, PA: Carnegie-Mellon University. (co-authors J. F. Traub and Robert Philip Weber)

*Algorithms for solvents of matrix polynomials*(1975). Pittsburgh, PA: Carnegie-Mellon University. (co-authors J. F. Traub and R. P. Weber)

*An Adaptive Nonlinear Least-Squares Algorithm*(1977), Cambridge, MA: National Bureau of Economic Research. (co-authors Roy E. Welsch and David M. Gay)

*Numerical methods for unconstrained optimization and nonlinear equations*(1983). Englewood Cliffs, NJ: Prentice-Hall, Inc. (co-author Robert B. Schnabel)

**^**Overton, Michael L.; Schnabel, Robert B. (January 1999). "Dedication".*SIAM Journal on Optimization*.**9**(4): vii–viii. doi:10.1137/SJOPE8000009000004000vii000001.**^**"SIAM Fellows - Class of 2010".*Society for Industrial and Applied Mathematics*. Retrieved 29 August 2017.**^**"SIAM Fellows". SIAM. Retrieved 2022-11-10.- ^
^{a}^{b}^{c}^{d}"Profile: John E. Dennis". Research Gate. Retrieved 2022-11-10. **^**"CMOR Faculty: John E. Dennis, Jr". Rice University. Retrieved 2022-11-10.