Search

Dr. Dimitris Vartziotis

Dr. Dimitris Vartziotis studied Aeronautical and Space Engineering (MSc) and Civil Engineering (MSc). He carried out his PhD Thesis in Computational Mechanics. He worked as a scientific executive in IBM Germany. He founded and manages the companies ΝΙΚΙ ΜΕΠΕ and TWT GmbH. TWT GmbH has been awarded first place for innovation and overall evaluation amongst the top German automotive companies. His research focuses on scientific technology and theoretical Mathematics. He publishes in international scientific journals of publishing houses such as Elsevier and Springer. Moreover, he is a reviewer for the European Mathematical Society (zbMATH) and the American Mathematical Society (AMS).

Dr. Dimitris Vartziotis, CEO and founder of TWT GmbH Science and Innovation has been named as “Best Automotive Innovation CEO 2020 (Germany)”.   On-line magazine “CEO monthly” publishes this award. Learn more on Dr. Vartziotis’ accomplishment and how he shapes TWT towards becoming a knowledge society.

www.ceo-review.com/issues/issue-10-2020/14/

As a general manager of TWT GmbH and NIKI he was responsible for the development of the first Greek car “Aletis” for the Greek Vehicles Industry ΕΛΒΟ Α.Ε. in collaboration with Pininfarina (Italy). The first prototype of “Aletis” was presented at the international automotive exhibition IAA 2001 in Frankfurt.

Publications

2023

Dimitris Vartziotis, Florian Schneider, Diana Behnke, Grace Tian

The Chameleon transformation in $n$ dimensions Miscellaneous

2023.

Links

Dimitris Vartziotis, Doris Bohnet

An Angular Transformation of Triangles Miscellaneous

2023.

Abstract | Links

2021

Florian Pausinger, Dimitris Vartziotis

On the symmetry of finite sums of exponentials Journal Article

In: Elemente der Mathematik, vol. 76, no. 2, pp. 62–73, 2021, ISSN: 0013-6018.

Abstract | Links

2020

Dimitris Vartziotis, Doris Bohnet, Benjamin Himpel

Smoothing Game Miscellaneous

2020.

Links

2019

Dimitris Vartziotis

Computing Arithmetic Series by Expressing the Summands as a Sum of Ones Miscellaneous

2019.

Abstract

Dimitris Vartziotis

Anacarbit – Wittgenstein In Antilog Book

2019, ISBN: 9789609745550.

Links

2018

Dimitris Vartziotis, Doris Bohnet, Benjamin Himpel

GETOpt mesh smoothing: Putting GETMe in the framework of global optimization-based schemes Journal Article

In: Finite Elements in Analysis and Design, vol. 147, pp. 10–20, 2018, ISSN: 0168-874X.

Abstract | Links

Dimitris Vartziotis, Juri Merger

GETMe.anis: On geometric polygon transformations leading to anisotropy Miscellaneous

2018.

Links

Dimitris Vartziotis, Juri Merger

Contributions to the study of the non-trivial roots of the Riemann zeta-function Miscellaneous

2018.

Links

Dimitris Vartziotis, Joachim Wipper

The GETMe Mesh Smoothing Framework: A Geometric Way to Quality Finite Element Meshes Book

CRC Press, 2018, ISBN: 978-0-3670-2342-3.

Links

Dimitris Vartziotis, Doris Bohnet

Fractal Curves from Prime Trigonometric Series Journal Article

In: Fractal and Fractional, vol. 2, no. 1, 2018, ISSN: 2504-3110.

Abstract | Links

2017

Dimitris Vartziotis, Benjamin Himpel, Markus Pfeil

Creation of higher-energy superposition quantum states motivated by geometric transformations Miscellaneous

2017.

Abstract | Links

Dimitris Vartziotis, Doris Bohnet

A geometric mesh smoothing algorithm related to damped oscillations Journal Article

In: Computer Methods in Applied Mechanics and Engineering, vol. 326, pp. 102–121, 2017, ISSN: 0045-7825.

Abstract | Links

Dimitris Vartziotis, Joachim Wipper

The Fractal Nature of an Approximate Prime Counting Function Journal Article

In: Fractal and Fractional, vol. 1, no. 1, pp. 10, 2017, ISSN: 2504-3110.

Abstract | Links

Dimitris Vartziotis

Kommentare zu Wittgensteins Zitaten Book

utzverlag GmbH, 2017, ISBN: 978-3-8316-2031-9.

Links

2016

Dimitris Vartziotis, Doris Bohnet

Existence of an attractor for a geometric tetrahedron transformation Journal Article

In: Differential Geometry and its Applications, vol. 49, pp. 197–207, 2016, ISSN: 0926-2245.

Abstract | Links

Dimitris Vartziotis

Curvature transformation Miscellaneous

2016.

Links

Dimitris Vartziotis, Aristos Tzavellas

On sums of prime factors Miscellaneous

2016.

Links

2014

Dimitris Vartziotis, Doris Bohnet

Convergence properties of a geometric mesh smoothing algorithm Miscellaneous

2014.

Abstract | Links

Dimitris Vartziotis, Benjamin Himpel

Laplacian smoothing revisited Miscellaneous

2014.

Links

Dimitris Vartziotis, Benjamin Himpel

Efficient and Global Optimization-Based Smoothing Methods for Mixed-Volume Meshes Proceedings Article

In: Proceedings of the 22nd International Meshing Roundtable, pp. 293–311, Springer International Publishing, 2014.

Links

Dimitris Vartziotis, Benjamin Himpel

Efficient and Global Optimization-Based Smoothing Methods for Mixed-Volume Meshes Proceedings Article

In: Sarrate, Josep, Staten, Matthew (Ed.): Proceedings of the 22nd International Meshing Roundtable, pp. 293–311, Springer International Publishing, Cham, 2014, ISBN: 978-3-319-02335-9.

Abstract | Links

Dimitris Vartziotis, Benjamin Himpel

Efficient Mesh Optimization Using the Gradient Flow of the Mean Volume Journal Article

In: SIAM Journal on Numerical Analysis, vol. 52, no. 2, pp. 1050–1075, 2014.

Abstract | Links

2013

Dimitris Vartziotis, Doris Bohnet

Regularizations of non-euclidean polygons Miscellaneous

2013.

Links

Dimitris Vartziotis, Benjamin Himpel

Efficient and Global Optimization-Based Smoothing Methods for Mixed-Volume Meshes Miscellaneous

2013.

Links

Dimitris Vartziotis, Joachimand Wipper, Manolis Papadrakakis

Improving mesh quality and finite element solution accuracy by GETMe smoothing in solving the Poisson equation Journal Article

In: Finite Elements in Analysis and Design, vol. 66, pp. 36–52, 2013, ISSN: 0168-874X.

Abstract | Links

Dimitris Vartziotis, Manolis Papadrakakis

Improved GETMe by adaptive mesh smoothing Journal Article

In: Computer Assisted Methods in Engineering and Science, vol. 20, no. 1, pp. 55–71, 2013, ISSN: 2956-5839.

Abstract | Links

2012

Dimitris Vartziotis, Joachim Wipper

Fast smoothing of mixed volume meshes based on the effective geometric element transformation method Journal Article

In: Computer Methods in Applied Mechanics and Engineering, vol. 201-204, pp. 65–81, 2012.

Links

Dimitris Vartziotis, Simon Huggenberger

Iterative geometric triangle transformations Journal Article

In: Elemente der Mathematik, vol. 67, no. 2, pp. 68–83, 2012.

Abstract | Links

Dimitris Vartziotis, Iraklis Goudas, Spyros Savvas, Athanasios Batagiannis, Florian Dittmann, Francesca Zanier

Roadscanner: Feasibility Study and Development of a GNSS-Probe for Creating Digital Maps of High Accuracy and Integrity Journal Article

In: Procedia – Social and Behavioral Sciences, vol. 48, pp. 2473–2481, 2012, ISSN: 1877-0428, (Transport Research Arena 2012).

Abstract | Links

2011

Dimitris Vartziotis, Joachim Wipper

A dual element based geometric element transformation method for all-hexahedral mesh smoothing Journal Article

In: Computer Methods in Applied Mechanics and Engineering, vol. 200, no. 9-12, pp. 1186–1203, 2011.

Abstract | Links

2010

Dimitris Vartziotis, Kostas Vartziotis, Victor Fäßler, Evaggelos Savvas, Iraklis Goudas, Maria Zavali

An online system for the support of Total Hip Arthroplasty and rapid implant design and manufacturing Proceedings Article

In: Proceedings of the 10th IEEE International Conference on Information Technology and Applications in Biomedicine, pp. 1–4, 2010, ISSN: 2168-2208.

Abstract | Links

Dimitris Vartziotis, Joachim Wipper

Characteristic parameter sets and limits of circulant Hermitian polygon transformations Journal Article

In: Linear Algebra and its Applications, vol. 433, no. 5, pp. 945–955, 2010, ISSN: 0024-3795.

Abstract | Links

2009

Dimitris Vartziotis, Joachim Wipper, Bernd Schwald

The geometric element transformation method for tetrahedral mesh smoothing Journal Article

In: Computer Methods in Applied Mechanics and Engineering, vol. 199, no. 1, pp. 169–182, 2009, ISSN: 0045-7825.

Abstract | Links

Dimitris Vartziotis, Joachim Wipper

The geometric element transformation method for mixed mesh smoothing Journal Article

In: Engineering with Computers, vol. 25, no. 3, pp. 287–301, 2009.

Abstract | Links

Dimitris Vartziotis, Joachim Wipper

On the construction of regular polygons and generalized napoleon vertices Journal Article

In: Forum Geometricorum, vol. 9, pp. 213–223, 2009, ISSN: 1534-1178.

Abstract | Links

Dimitris Vartziotis, Joachim Wipper

Classification of symmetry generating polygon-transformations and geometric prime algorithms Journal Article

In: Mathematica Pannonica, vol. 20, no. 2, pp. 167–187, 2009, ISSN: 2786-0752.

Abstract | Links

Contact