Uniform convergence of interpolation by cubic splines. - Helmut Gfrerer (Computing, 1982)

A globally convergent algorithm based on imbedding and parametric optimization. - Helmut Gfrerer; J. Guddat; Hansjörg Wacker (Computing, 1983)

Global konvergente Optimierungsverfahren mit Anwendung auf die Höhensteuerung eines Speicherkraftwerkes. - Helmut Gfrerer (VWGÖ, 1983)

Globally convergent decomposition methods for nonconvex optimization problems. - Helmut Gfrerer (Computing, 1984)

Optimization strategies for hydro energy storage plants. - Wolfgang Bauer; Helmut Gfrerer; Hansjörg Wacker (Z. Oper. Research, 1984)

Optimization of hydro energy storage plant problems by variational methods. - Helmut Gfrerer (Z. Oper. Research, 1984)

Book reviews. - Heinz W. Engl; Günter Schmidt; Helmut Gfrerer; Günther Zäpfel (ZOR Methods Model. Oper. Res., 1988)

Second-Order Optimality Conditions for Scalar and Vector Optimization Problems in Banach Spaces. - Helmut Gfrerer (SIAM J. Control. Optim., 2006)

Second-Order Necessary Conditions for Nonlinear Optimization Problems with Abstract Constraints: The Degenerate Case. - Helmut Gfrerer (SIAM J. Optim., 2007)

First Order and Second Order Characterizations of Metric Subregularity and Calmness of Constraint Set Mappings. - Helmut Gfrerer (SIAM J. Optim., 2011)

On Directional Metric Subregularity and Second-Order Optimality Conditions for a Class of Nonsmooth Mathematical Programs. - Helmut Gfrerer (SIAM J. Optim., 2013)

Optimality Conditions for Disjunctive Programs Based on Generalized Differentiation with Application to Mathematical Programs with Equilibrium Constraints. - Helmut Gfrerer (SIAM J. Optim., 2014)

Complete Characterizations of Tilt Stability in Nonlinear Programming under Weakest Qualification Conditions. - Helmut Gfrerer; Boris S. Mordukhovich (SIAM J. Optim., 2015)

An SQP method for mathematical programs with complementarity constraints with strong convergence properties. - Matús Benko; Helmut Gfrerer (Kybernetika, 2016)

On Computation of Generalized Derivatives of the Normal-Cone Mapping and Their Applications. - Helmut Gfrerer; Jirí V. Outrata (Math. Oper. Res., 2016)

Lipschitz and Hölder stability of optimization problems and generalized equations. - Helmut Gfrerer; Diethard Klatte (Math. Program., 2016)

On Lipschitzian Properties of Implicit Multifunctions. - Helmut Gfrerer; Jirí V. Outrata (SIAM J. Optim., 2016)

An SQP method for mathematical programs with vanishing constraints with strong convergence properties. - Matús Benko; Helmut Gfrerer (Comput. Optim. Appl., 2017)

On the Aubin property of a class of parameterized variational systems. - Helmut Gfrerer; Jirí V. Outrata (Math. Methods Oper. Res., 2017)

Robinson Stability of Parametric Constraint Systems via Variational Analysis. - Helmut Gfrerer; Boris S. Mordukhovich (SIAM J. Optim., 2017)

New Constraint Qualifications for Mathematical Programs with Equilibrium Constraints via Variational Analysis. - Helmut Gfrerer; Jane J. Ye (SIAM J. Optim., 2017)

Characterizations of Tilt-Stable Minimizers in Second-Order Cone Programming. - Matús Benko; Helmut Gfrerer; Boris S. Mordukhovich (SIAM J. Optim., 2019)

Second-Order Variational Analysis of Parametric Constraint and Variational Systems. - Helmut Gfrerer; Boris S. Mordukhovich (SIAM J. Optim., 2019)

On the Solution of Contact Problems with Tresca Friction by the Semismooth* Newton Method. - Helmut Gfrerer; Jirí V. Outrata; Jan Valdman (LSSC, 2021)

On a Semismooth* Newton Method for Solving Generalized Equations. - Helmut Gfrerer; Jirí V. Outrata (SIAM J. Optim., 2021)

Second-Order Optimality Conditions for Nonconvex Set-Constrained Optimization Problems. - Helmut Gfrerer; Jane J. Ye; Jinchuan Zhou (Math. Oper. Res., 2022)

Radius theorems for subregularity in infinite dimensions. - Helmut Gfrerer; Alexander Y. Kruger (Comput. Optim. Appl., 2023)

On the SCD semismooth* Newton method for generalized equations with application to a class of static contact problems with Coulomb friction. - Helmut Gfrerer; Michael Mandlmayr; Jirí V. Outrata; Jan Valdman (Comput. Optim. Appl., 2023)

Second-Order Optimality Conditions for General Nonconvex Optimization Problems and Variational Analysis of Disjunctive Systems. - Matús Benko; Helmut Gfrerer; Jane J. Ye; Jin Zhang 002; Jinchuan Zhou (SIAM J. Optim., 2023)

On SCD Semismooth* Newton methods for the efficient minimization of Tikhonov functionals with non-smooth and non-convex penalties. - Helmut Gfrerer; Simon Hubmer; Ronny Ramlau (CoRR, 2024)

On a globally convergent semismooth* Newton method in nonsmooth nonconvex optimization. - Helmut Gfrerer (Comput. Optim. Appl., 2025)