# Author Publications

**49**.

## 2015

Bomze, Immanuel M. and Dickinson, Peter J.C. and Still, Georg
(2015)
*The structure of completely positive matrices according to their CP-rank and CP-plus-rank.*
Linear algebra and its applications, 482
.
pp. 191-206.
ISSN 0024-3795

Borchers, Marlies and Breeuwsma, Paul and Kern, Walter and Slootbeek, Jaap and Still, Georg and Tibben, Wouter
(2015)
*Traffic user equilibrium and proportionality.*
Transportation research. Part B: Methodological, 79
.
pp. 149-160.
ISSN 0191-2615

Bouza Allende, Gemayqzel and Still, Georg
(2015)
*Embedding methods for solving variational inequalities.*
Optimization, 64
(9).
pp. 1825-1839.
ISSN 0233-1934

Dür, Mirjam and Jargalsaikhan, Bolor and Still, Georg
(2015)
*First order solutions in conic programming.*
Mathematical methods of operations research, 82
(2).
pp. 123-142.
ISSN 1432-2994

Ohazulike, Anthony E. and Still, Georg and Kern, Walter and Berkum, Eric C. van
(2015)
*Multiple Stakeholders in Road Pricing: A Game Theoretic Approach.*
In:
Kjell Hausken
&
Jun Zhuang
(Eds.),
Game Theoretic Analysis of Congestion, Safety and Security.
978-3-319-11673-0
.
Springer, pp. 159-189.
ISBN 9783319116730

## 2014

Still, Georg and Ahmed, Faizan
(2014)
*Quadratic maximization on the unit simplex: structure, stability, genericity and application in biology.*
[Report]

## 2013

Ahmed, Faizan and Dür, Mirjam and Still, Georg
(2013)
*Copositive programming via semi-infinite optimization.*
Journal of optimization theory and applications, 159
(2).
pp. 322-340.
ISSN 0022-3239

Ahmed, Faizan and Still, Georg
(2013)
*A note on set-semidefinite relaxations of nonconvex quadratic programs.*
Journal of global optimization, 57
(4).
pp. 1139-1146.
ISSN 0925-5001

Bomhoff, Matthijs and Kern, Walter and Still, Georg
(2013)
*A note on perfect partial elimination.*
Discrete mathematics, 313
(14).
pp. 1558-1563.
ISSN 0012-365X

Bouza Allende, Gemayqzel and Still, Georg
(2013)
*Solving bilevel programs with the KKT-approach.*
Mathematical programming, 138
(1-2).
pp. 309-332.
ISSN 0025-5610

Feng, Yuan and Driessen, Theo S.H. and Still, Georg
(2013)
*A matrix approach to associated consistency of the Shapley value for games in generalized characteristic function form.*
Linear algebra and its applications, 438
(11).
pp. 4279-4295.
ISSN 0024-3795

Ohazulike, Anthony E. and Still, Georg and Kern, Walter and Berkum, Eric C. van
(2013)
*An origin-destination based road pricing model for static and multi-period traffic assignment problems.*
Transportation research. Part E: Logistics and transportation review, 58
.
pp. 1-27.
ISSN 1366-5545

## 2012

Bomhoff, Matthijs and Kern, Walter and Still, Georg
(2012)
*On bounded block decomposition problems for under-specified systems of equations.*
Journal of computer and system sciences, 78
(1).
pp. 336-347.
ISSN 0022-0000

Ohazulike, Anthony and Still, Georg and Kern, Walter and Berkum, Eric van
(2012)
*Multi-objective road pricing: a game theoretic and multi-level optimization approach.*
In: 25th European Conference on Operational Research EURO 2012, 8-11 July 2012, Vilnius, Lithuania (pp. p. 210).

Ohazulike, Anthony E. and Bliemer, Michiel C.J. and Still, Georg and Berkum, Eric C. van
(2012)
*Multi-Objective Road Pricing: A Game Theoretic and Multi-Stakeholder Approach.*
In: 91st Annual Meeting pof the Transportation Research Board (TRB), January 22-26, 2012, Washington, DC, USA.

Ohazulike, Anthony E. and Still, Georg and Kern, Walter and Berkum, Eric C. van
(2012)
*Multi-stakeholder road pricing game: solution concepts.*
International Journal of Computational and Mathematical Sciences, 6
.
pp. 1-12.
ISSN 2070-3910

## 2011

Bomhoff, Matthijs and Kern, Walter and Still, Georg
(2011)
*A note on perfect partial elimination.*
[Report]

## 2010

Bomhoff, Matthijs and Kern, Walter and Still, Georg
(2010)
*On bounded block decomposition problems for under-specified systems of equations.*
[Report]

Ohazulike, Anthony and Bliemer, Michiel and Still, Georg and Berkum, Eric van
(2010)
*Multi-objective road pricing: a cooperative and competitive bilevel optimization approach.*
In: 11th TRAIL Congress, 23-24 November 2010, Rotterdam, the Netherlands.

Still, Georg and Kern, Walter and Koelewijn, Jaap and Bomhoff, Matthijs
(2010)
*Consistency of a system of equations: What does that mean?*
[Report]

## 2009

Jonker, Peter and Still, Georg and Twilt, Frank
(2009)
*On the stratification of a class of specially structured matrices.*
Optimization, 58
(6).
pp. 685-712.
ISSN 0233-1934

## 2008

Bouza Allende, G. and Guddat, J. and Still, G.J.
(2008)
*Critical sets in one-parametric mathematical programs with complementarity constraints.*
Optimization, 57
(2).
pp. 319-336.
ISSN 0233-1934

Dür, Mirjam and Still, Georg
(2008)
*Interior points of the completely positive cone.*
Electronic Journal of Linear Algebra, 17
.
pp. 48-53.
ISSN 1081-3810

Guerra Vázques, F. and Rückmann, J.-J. and Stein, O. and Still, G.
(2008)
*Generalized semi-infinite programming: A tutorial.*
Journal of Computational and Applied Mathematics, 217
(2).
pp. 394-419.
ISSN 0377-0427

Wang, Ligong and Broersma, Hajo and Hoede, Cornelis and Li, Xueliang and Still, Georg
(2008)
*Some families of integral graphs.*
Discrete mathematics, 308
(24).
pp. 6383-6391.
ISSN 0012-365X

## 2007

Birbil, Ş.İ. and Frenk, J.B.G. and Still, G.J.
(2007)
*An elementary proof of the Fritz-John and Karush–Kuhn–Tucker conditions in nonlinear programming.*
European Journal of Operational Research, 180
(1).
pp. 479-484.
ISSN 0377-2217

Bouza, Gemayqzel and Still, Georg
(2007)
*Mathematical programs with complementarity constraints: convergence properties of a smoothing method.*
Mathematics of operations research, 32
(2).
pp. 467-483.
ISSN 0364-765X

López, M. and Still, G.J.
(2007)
*Semi-infinite programming.*
European Journal of Operational Research, 180
(2).
pp. 491-518.
ISSN 0377-2217

Wang, L. and Broersma, H.J. and Hoede, C. and Li, X. and Still, G.J.
(2007)
*Integral trees of diameter 6.*
Discrete applied mathematics, 155
(10).
pp. 1254-1266.
ISSN 0166-218X

## 2006

Birbil, S.I. and Bouza, G. and Frenk, J.B.G. and Still, G.
(2006)
*Equilibrium constrained optimization problems.*
European Journal of Operational Research, 169
(3).
1108 -1127.
ISSN 0377-2217

Lin, L.J. and Still, G.J.
(2006)
*Mathematical programs with equilibrium constraints: the existence of feasible points.*
Optimization, 55
(3).
pp. 205-219.
ISSN 0233-1934

Pop, P.C. and Kern, W. and Still, G.J.
(2006)
*A new relaxation method for the generalized minimum spanning tree problem.*
European Journal of Operational Research, 170
(3).
pp. 900-908.
ISSN 0377-2217

## 2003

Stein, Oliver and Still, Georg
(2003)
*Solving semi-infinite optimization problems with interior point techniques.*
SIAM journal on control and optimization, 42
(3).
pp. 769-788.
ISSN 0363-0129

Still, Georg
(2003)
*Approximation theory methods for solving elliptic eigenvalue problems.*
Zeitschrift für Angewandte Mathematik und Mechanik, 83
(7).
pp. 468-478.
ISSN 0044-2267

## 2002

Stein, Oliver and Still, Georg
(2002)
*On generalized semi-infinite optimization and bilevel optimization.*
European Journal of Operational Research, 142
(3).
pp. 444-462.
ISSN 0377-2217

## 2001

Jonker, P. and Still, G. and Twilt, F.
(2001)
*One-parametric linear-quadratic optimization problems.*
Annals of operations research, 101
(1-4).
pp. 221-253.
ISSN 0254-5330

Pop, P.C. and Kern, W. and Still, G. and Faigle, U.
(2001)
*Relaxation methods for the Generalized Minimum Spanning Tree Problem.*
In:
Johann Hurink
&
Stefan Pickl
&
Hajo Broersma
&
Ulrich Faigle
(Eds.),
1st Cologne-Twente Workshop on Graphs and Combinatorial Optimization.
Electronic Notes in Discrete Mathematics, 8
.
Elsevier, pp. 76-79.

Pop, P.C. and Kern, W. and Still, G.J.
(2001)
*An approximation algorithm for the generalized minimum spanning tree problem with bounded cluster size.*
[Report]

Still, G.J.
(2001)
*Discretization in semi-infinite programming: The rate of approximation.*
[Report]

## 2000

Frederiks, T.J. and Still, G.J.
(2000)
*Linear bilevel problems: Genericity results and an efficient method for computing local minima.*
[Report]

Pop, P.C. and Kern, W. and Still, G.J.
(2000)
*The generalized minimum spanning tree problem.*
[Report]

Stein, O. and Still, G.J.
(2000)
*On generalized semi-infinite optimization and bilevel optimization.*
[Report]

## 1999

Dutta, D. and Murty, K. and Still, G.J. and Wilharms, J.J.
(1999)
*Computing the maximum turnable state of simple parts.*
[Report]

Pop, P.C. and Still, G.J.
(1999)
*An easy way to obtain strong duality results in linear, linear semidefinite and linear semi-infinite programming.*
[Report]

Still, G.
(1999)
*Generalized semi-infinite programming: Theory and methods.*
European Journal of Operational Research, 119
(2).
pp. 301-313.
ISSN 0377-2217

## 1998

Still, G.J.
(1998)
*How to split the eigenvalues of a one-parameter family of matrices.*
[Report]

Still, G.J.
(1998)
*Generalized semi-infinite programming: Numerical aspects.*
[Report]

## 1997

Still, G. and Streng, M.
(1997)
*The Chebyshev hyperplane optimization problem.*
Journal of global optimization, 11
(4).
pp. 361-376.
ISSN 0925-5001

## 1996

Still, G. and Streng, M.
(1996)
*Optimality conditions in smooth nonlinear programming.*
Journal of optimization theory and applications, 90
(3).
pp. 483-515.
ISSN 0022-3239

**Fri Dec 9 05:43:39 2016 CET**.