Elisabeth Anna Sophia Köbis
+4773412539
Sentralbygg 2, 1054, Gløshaugen
About
Elisabeth Köbis has been associate professor at the Department of Mathematical Sciences since April 2020.
Main areas of research
Set optimization, robust approaches to uncertain multi-objective optimization problems, vector variational inequalities
Conferences Organized
Colloquium & International Conference on Variational Analysis and Nonsmooth Optimization (2018)
Academic degrees
Habilitation in Mathematics at the Martin-Luther-University Halle-Wittenberg, Germany (2020). Thesis: Approaches to Set Optimization without Convexity Assumptions.
PhD in Mathematics at the Martin-Luther-University Halle-Wittenberg, Germany (2014). Thesis: On Robust Optimization: A Unified Approach to Robustness Using a Nonlinear Scalarizing Functional and Relations to Set Optimization.
MSc in Business Mathematics at the Martin-Luther-University Halle-Wittenberg, Germany (2011). Thesis: N-Location Problems with a Line Barrier.
Editorial activities
Managing Editor, Associate Editor and Pre-Production Editor at Optimization: A Journal of Mathematical Programming and Operations Research (Taylor & Francis)
Editor at
- Applied Set-Valued Analysis and Optimization (Biemdas Academic Publishers, Canada)
- Scientific Reports (inaugural member of the Computational Science division, Nature Portfolio)
- Communications in Combinatorics and Optimization (Azarbaijan Shahid Madani University)
- Journal of Nonlinear and Variational Analysis (Guest Editor, Biemdas Academic Publishers, Canada)
- Journal of Applied and Numerical Optimization (Guest Editor, Biemdas Academic Publishers, Canada)
Publications
2022
- Gemayqzel, Bouza Allende; Köbis, Elisabeth Anna Sophia; Tammer, Christiane; Yao, Jen-Chih. (2022) Editorial: A Special Issue on the theory and numerical methods for vector optimization problems with respect to variable domination structures. Journal of Nonlinear and Variational Analysis. volum 6 (6).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2022) Approximate elements for set optimization problems with respect to variable domination structures. Journal of Nonlinear and Variational Analysis. volum 6 (2).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Tammer, Christiane. (2022) A FIRST BIBLIOGRAPHY ON SET AND VECTOR OPTIMIZATION PROBLEMS WITH RESPECT TO VARIABLE DOMINATION STRUCTURES. Journal of Nonlinear and Variational Analysis. volum 6 (6).
- Köbis, Elisabeth Anna Sophia; Sarychev, Andrey; Tchemisova, Tatiana; Wilhelm-Weber, Gerhard. (2022) Editorial: International Conference "Dynamical Control and Optimization". Optimization. volum 71 (11).
- Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2022) An existence principle of Takahashi's type for vector optimization problems and applications. Journal of Nonlinear and Convex Analysis. volum 23 (1).
2021
- Gutiérrez, César; Huerga, Lidia; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2021) A scalarization scheme for binary relations with applications to set-valued and robust optimization. Journal of Global Optimization. volum 79.
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2021) Characterizing the upper set relation by general functionals. Applied Set-Valued Analysis and Optimization. volum 3 (3).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2021) The Weighted Set Relation: Characterizations in the Convex Case. Journal of Nonlinear and Variational Analysis. volum 5 (5).
- Köbis, Elisabeth Anna Sophia; Li, Jinlu; Petruşel, Adrian; Yao, Jen-Chih. (2021) Recent development in nonlinear and variational analysis and optimization. Optimization. volum 70 (4).
2020
- Ceng, Lu-Chuan; Köbis, Elisabeth Anna Sophia; Zhao, Xiaopeng. (2020) On General Implicit Hybrid Iteration Method for Triple Hierarchical Variational Inequalities with Hierarchical Variational Inequality Constraints. Optimization. volum 69 (9).
- Hung, Nguyen Van; Dai, Le Xuan; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2020) The generic stability of solutions for vector quasi-equilibrium problems on Hadamard manifolds. Journal of Nonlinear and Variational Analysis. volum 4 (3).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Qin, Xiaolong. (2020) An Inequality Approach to Approximate Solutions of Set Optimization Problems in Real Linear Spaces. Mathematics.
2019
- Ansari, Qamrul Hasan; Köbis, Elisabeth Anna Sophia; Sharma, Pradeep Kumar. (2019) Characterizations of Multiobjective Robustness via Oriented Distance Function. Journal of Optimization Theory and Applications.
- Chen, Jiawei; Ju, Xingxing; Köbis, Elisabeth Anna Sophia; Liou, Yeong-Cheng. (2019) Tikhonov Type Regularization Methods for Inverse Mixed Variational Inequalities. Optimization.
- Chen, Jiawei; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2019) Optimality Conditions and Duality for Robust Nonsmooth Multiobjective Optimization Problems with Constraints Share on. Journal of Optimization Theory and Applications.
- Günther, Christian; Köbis, Elisabeth Anna Sophia; Popovici, Nicolae. (2019) Computing Minimal Elements Of Finite Families of Sets w.r.t. Preorder Relations in Set-Valued Optimization. Applied Set-Valued Analysis and Optimization.
- Günther, Christian; Köbis, Elisabeth Anna Sophia; Popovici, Nicolae. (2019) On strictly minimal elements w.r.t. preorder relations in set-valued optimization. Applied Set-Valued Analysis and Optimization.
- Hebestreit, Niklas; Khan, Akhtar; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2019) Existence Theorems and Regularization Methods for Non-coercive Vector Variational and Vector Quasi-Variational Inequalities. Journal of Nonlinear and Convex Analysis.
- Khan, Akhtar; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2019) Variational Analysis and Set Optimization: Developments and Applications in Decision Making. CRC Press. 2019. ISBN 9781315177991.
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Qin, Xiaolong. (2019) Nonlinear Separation Approach to Inverse Variational Inequalities in Real Linear Spaces. Journal of Optimization Theory and Applications.
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane; Yao, Jen-Chih. (2019) Necessary Conditions for Solutions of Set Optimization Problems with Respect to Variable Domination Structures. Pure and Applied Functional Analysis. volum 4 (2).
- Nguyen Van, Hung; Köbis, Elisabeth Anna Sophia; Tam, Vo Minh. (2019) Existence Conditions for Set-Valued Vector Quasi-Equilibrium Problems on Hadamard Manifolds with Variable Domination Structure and Applications. Journal of Nonlinear and Convex Analysis. volum 20 (12).
- Nguyen Van, Hung; Köbis, Elisabeth Anna Sophia; Tam, Vo Minh. (2019) Existence of Solutions and Iterative Algorithms for Weak Vector Quasi-Equilibrium Problems. Journal of Nonlinear and Convex Analysis. volum 21 (2).
- Nguyen Van, Hung; Tam, Vo Minh; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2019) Existence of Solutions and Algorithm for Generalized Vector Quasi-complementarity Problems with Application to Traffic Network Problems. Journal of Nonlinear and Convex Analysis. volum 20 (9).
2018
- Ansari, Qamrul Hasan; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2018) Vector Variational Inequalities and Vector Optimization. Theory and Applications. Springer. 2018. ISBN 9783319630489.
- Chen, Jiawei; Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Yao, Jen-Chih. (2018) Image Space Analysis for Constrained Inverse Vector Variational Inequalities via Multiobjective Optimization. Journal of Optimization Theory and Applications.
- Fang, Donghui; Köbis, Elisabeth Anna Sophia; Zhao, Xiaopeng. (2018) Zero Duality Gap Property for Convex Composite Optimization Problems. Journal of Nonlinear and Convex Analysis. volum 19 (12).
- Hebestreit, Niklas; Köbis, Elisabeth Anna Sophia. (2018) Representation of Set Relations in Real Linear Spaces. Journal of Nonlinear and Convex Analysis. volum 19 (2).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2018) Overshoot Optimized Newmark-Type Methods. Investigacion Operacional. volum 39 (3).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam. (2018) Numerical Procedures for Obtaining Strong, Strict and Ideal Minimal Solutions of Set Optimization Problems. Applied Analysis and Optimization. volum 2 (3).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane. (2018) A Generalized Scalarization Method in Set Optimization with Respect to Variable Domination Structures. Vietnam Journal of Mathematics.
- Sharma, Pradeep Kumar; Köbis, Elisabeth Anna Sophia; Ansari, Qamrul Hasan. (2018) Characterizations of Set Relations with Respect to Variable Domination Structures via Oriented Distance Function. Optimization.
2017
- Gutiérrez, César; Huerga, Lidia; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2017) Approximate Solutions of Set-Valued Optimization Problems Using Set-Criteria. Applied Analysis and Optimization. volum 1 (3).
- Köbis, Elisabeth Anna Sophia. (2017) Robust Approaches to Uncertain Optimization. Boletín de Estadística e Investigacíon Operativa. volum 33 (3).
- Köbis, Elisabeth Anna Sophia. (2017) Set Optimization by Means of Variable Order Relations. Optimization.
- Köbis, Elisabeth Anna Sophia. (2017) Variable Ordering Structures in Set Optimization. Journal of Nonlinear and Convex Analysis. volum 18 (9).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane; Yao, Jen-Chih. (2017) A New Scalarizing Functional in Set Optimization with Respect to Variable Domination Structures. Applied Analysis and Optimization. volum 1 (2).
Journal publications
- Gemayqzel, Bouza Allende; Köbis, Elisabeth Anna Sophia; Tammer, Christiane; Yao, Jen-Chih. (2022) Editorial: A Special Issue on the theory and numerical methods for vector optimization problems with respect to variable domination structures. Journal of Nonlinear and Variational Analysis. volum 6 (6).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2022) Approximate elements for set optimization problems with respect to variable domination structures. Journal of Nonlinear and Variational Analysis. volum 6 (2).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Tammer, Christiane. (2022) A FIRST BIBLIOGRAPHY ON SET AND VECTOR OPTIMIZATION PROBLEMS WITH RESPECT TO VARIABLE DOMINATION STRUCTURES. Journal of Nonlinear and Variational Analysis. volum 6 (6).
- Köbis, Elisabeth Anna Sophia; Sarychev, Andrey; Tchemisova, Tatiana; Wilhelm-Weber, Gerhard. (2022) Editorial: International Conference "Dynamical Control and Optimization". Optimization. volum 71 (11).
- Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2022) An existence principle of Takahashi's type for vector optimization problems and applications. Journal of Nonlinear and Convex Analysis. volum 23 (1).
- Gutiérrez, César; Huerga, Lidia; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2021) A scalarization scheme for binary relations with applications to set-valued and robust optimization. Journal of Global Optimization. volum 79.
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2021) Characterizing the upper set relation by general functionals. Applied Set-Valued Analysis and Optimization. volum 3 (3).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2021) The Weighted Set Relation: Characterizations in the Convex Case. Journal of Nonlinear and Variational Analysis. volum 5 (5).
- Köbis, Elisabeth Anna Sophia; Li, Jinlu; Petruşel, Adrian; Yao, Jen-Chih. (2021) Recent development in nonlinear and variational analysis and optimization. Optimization. volum 70 (4).
- Ceng, Lu-Chuan; Köbis, Elisabeth Anna Sophia; Zhao, Xiaopeng. (2020) On General Implicit Hybrid Iteration Method for Triple Hierarchical Variational Inequalities with Hierarchical Variational Inequality Constraints. Optimization. volum 69 (9).
- Hung, Nguyen Van; Dai, Le Xuan; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2020) The generic stability of solutions for vector quasi-equilibrium problems on Hadamard manifolds. Journal of Nonlinear and Variational Analysis. volum 4 (3).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Qin, Xiaolong. (2020) An Inequality Approach to Approximate Solutions of Set Optimization Problems in Real Linear Spaces. Mathematics.
- Ansari, Qamrul Hasan; Köbis, Elisabeth Anna Sophia; Sharma, Pradeep Kumar. (2019) Characterizations of Multiobjective Robustness via Oriented Distance Function. Journal of Optimization Theory and Applications.
- Chen, Jiawei; Ju, Xingxing; Köbis, Elisabeth Anna Sophia; Liou, Yeong-Cheng. (2019) Tikhonov Type Regularization Methods for Inverse Mixed Variational Inequalities. Optimization.
- Chen, Jiawei; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2019) Optimality Conditions and Duality for Robust Nonsmooth Multiobjective Optimization Problems with Constraints Share on. Journal of Optimization Theory and Applications.
- Günther, Christian; Köbis, Elisabeth Anna Sophia; Popovici, Nicolae. (2019) Computing Minimal Elements Of Finite Families of Sets w.r.t. Preorder Relations in Set-Valued Optimization. Applied Set-Valued Analysis and Optimization.
- Günther, Christian; Köbis, Elisabeth Anna Sophia; Popovici, Nicolae. (2019) On strictly minimal elements w.r.t. preorder relations in set-valued optimization. Applied Set-Valued Analysis and Optimization.
- Hebestreit, Niklas; Khan, Akhtar; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2019) Existence Theorems and Regularization Methods for Non-coercive Vector Variational and Vector Quasi-Variational Inequalities. Journal of Nonlinear and Convex Analysis.
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Qin, Xiaolong. (2019) Nonlinear Separation Approach to Inverse Variational Inequalities in Real Linear Spaces. Journal of Optimization Theory and Applications.
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane; Yao, Jen-Chih. (2019) Necessary Conditions for Solutions of Set Optimization Problems with Respect to Variable Domination Structures. Pure and Applied Functional Analysis. volum 4 (2).
- Nguyen Van, Hung; Köbis, Elisabeth Anna Sophia; Tam, Vo Minh. (2019) Existence Conditions for Set-Valued Vector Quasi-Equilibrium Problems on Hadamard Manifolds with Variable Domination Structure and Applications. Journal of Nonlinear and Convex Analysis. volum 20 (12).
- Nguyen Van, Hung; Köbis, Elisabeth Anna Sophia; Tam, Vo Minh. (2019) Existence of Solutions and Iterative Algorithms for Weak Vector Quasi-Equilibrium Problems. Journal of Nonlinear and Convex Analysis. volum 21 (2).
- Nguyen Van, Hung; Tam, Vo Minh; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2019) Existence of Solutions and Algorithm for Generalized Vector Quasi-complementarity Problems with Application to Traffic Network Problems. Journal of Nonlinear and Convex Analysis. volum 20 (9).
- Chen, Jiawei; Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur; Yao, Jen-Chih. (2018) Image Space Analysis for Constrained Inverse Vector Variational Inequalities via Multiobjective Optimization. Journal of Optimization Theory and Applications.
- Fang, Donghui; Köbis, Elisabeth Anna Sophia; Zhao, Xiaopeng. (2018) Zero Duality Gap Property for Convex Composite Optimization Problems. Journal of Nonlinear and Convex Analysis. volum 19 (12).
- Hebestreit, Niklas; Köbis, Elisabeth Anna Sophia. (2018) Representation of Set Relations in Real Linear Spaces. Journal of Nonlinear and Convex Analysis. volum 19 (2).
- Köbis, Elisabeth Anna Sophia; Köbis, Markus Arthur. (2018) Overshoot Optimized Newmark-Type Methods. Investigacion Operacional. volum 39 (3).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam. (2018) Numerical Procedures for Obtaining Strong, Strict and Ideal Minimal Solutions of Set Optimization Problems. Applied Analysis and Optimization. volum 2 (3).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane. (2018) A Generalized Scalarization Method in Set Optimization with Respect to Variable Domination Structures. Vietnam Journal of Mathematics.
- Sharma, Pradeep Kumar; Köbis, Elisabeth Anna Sophia; Ansari, Qamrul Hasan. (2018) Characterizations of Set Relations with Respect to Variable Domination Structures via Oriented Distance Function. Optimization.
- Gutiérrez, César; Huerga, Lidia; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2017) Approximate Solutions of Set-Valued Optimization Problems Using Set-Criteria. Applied Analysis and Optimization. volum 1 (3).
- Köbis, Elisabeth Anna Sophia. (2017) Robust Approaches to Uncertain Optimization. Boletín de Estadística e Investigacíon Operativa. volum 33 (3).
- Köbis, Elisabeth Anna Sophia. (2017) Set Optimization by Means of Variable Order Relations. Optimization.
- Köbis, Elisabeth Anna Sophia. (2017) Variable Ordering Structures in Set Optimization. Journal of Nonlinear and Convex Analysis. volum 18 (9).
- Köbis, Elisabeth Anna Sophia; Le, Thanh Tam; Tammer, Christiane; Yao, Jen-Chih. (2017) A New Scalarizing Functional in Set Optimization with Respect to Variable Domination Structures. Applied Analysis and Optimization. volum 1 (2).
Books
- Khan, Akhtar; Köbis, Elisabeth Anna Sophia; Tammer, Christiane. (2019) Variational Analysis and Set Optimization: Developments and Applications in Decision Making. CRC Press. 2019. ISBN 9781315177991.
- Ansari, Qamrul Hasan; Köbis, Elisabeth Anna Sophia; Yao, Jen-Chih. (2018) Vector Variational Inequalities and Vector Optimization. Theory and Applications. Springer. 2018. ISBN 9783319630489.