Ivo Hedtke, Institute of Computer Science, Martin-Luther-Universität Halle-Wittenberg

Photo Ivo Hedtke Research Assistant in the Data Structures and Efficient Algorithms Group
(Chairholder: Prof. Dr. Matthias Müller-Hannemann)

Email: hedtke (at) informatik (dot) uni (hyphen) halle (dot) de
Phone: +49 (0) 345 - 55 24731
Fax: +49 (0) 345 - 55 27039
Room: 4.18
Office Hour: Appointments upon prior arrangement via Email.

Institute of Computer Science
Martin-Luther-Universität Halle-Wittenberg
Von-Seckendorff-Platz 1, 06099 Halle, Germany

Area of Work / Interests

Fast Matrix Multiplication, Methods of Matrix Multiplication, their Implementation and related Topics
Efficient Algorithms on Dynamic Graphs, Datastructures and Efficient Algorithms
Numerical Linear Algebra, Numerical Methods for Ordinary Differential Equations, High Performance Computing

Teaching

Sommer Term 2012: Leader of three practice groups "Datenstrukturen und effiziente Algorithmen I" (B.Sc. Comp. Sc.); Leader of the practice group "Effiziente Graphenalgorithmen" (M.Sc. Comp. Sc.); Oberseminar: Algorithm Engineering / Seminar: Ausgewählte Kapitel der Algorithmik (M.Sc. Comp. Sc.)
Winter Term 2011/2012: Leader of the practice group "Datenstrukturen und effiziente Algorithmen II" (B.Sc. Comp. Sc.); Leader of the practice group "Algorithmische Geometrie" (M.Sc. Comp. Sc.); Oberseminar: Algorithm Engineering (M.Sc. Comp. Sc.)
Winter Term 2010/2011 (Uni Jena): Leader of two practice groups "Algebra/Geometrie 1 für Physik B.Sc."
Summer Term 2010 (Uni Jena): LaTeX Workshop for Physicists
Winter Term 2009/2010 (Uni Jena): Leader of the practice group "Lineare Algebra für Informatik B.Sc."; LaTeX Workshop for Physicists; LaTeX Workshop for Mathematicians and Computer Scientists
Summer Term 2009 (Uni Jena): Tutor "Lineare Algebra und Analytische Geometrie 2 für Lehramt Gymnasium"; LaTeX Workshop for Physicists; LaTeX Workshop for Mathematicians and Computer Scientists
Winter Term 2008/2009 (Uni Jena): Tutor "Lineare Algebra und Analytische Geometrie 1 für Lehramt Gymnasium"; LaTeX Workshop
Summer Term 2008 (Uni Jena): LaTeX Workshop

Der LaTeX-Tutor
(gemeinsam mit DAVID GIPPNER und ROBERT MÜLLER)
März 2009, 1. Auflage, ISBN 978-3-86858-123-2
Das Buch ist bei Shaker-Media erschienen. Siehe www.shaker-media.eu/de/ !
Siehe dazu auch die Internetseite http://www.latex-tutor.de zum Buch!

Search and test algorithms for triple product property triples (ArXiv: 1104.5097)
with SANDEEP MURTHY, Groups - Complexity - Cryptology, ISSN 1867-1144, Volume 4 Issue 1 (2012), Pages 111-133, De Gruyter, DOI: 10.1515/gcc-2012-0006
STRASSEN's Matrix Multiplication Algorithm for Matrices of Arbitrary Order (ArXiv: 1007.2117)
Bulletin of Mathematical Analysis and Applications, ISSN 1821-1291, Volume 3 Issue 2 (2011), Pages 269-277

Upgrading Subgroup Triple Product Property Triples (ArXiv: 1107.5973), submitted
A note on the TPP subgroup capacity of finite groups (ArXiv: 1107.5969), submitted
A Note on the Group-theoretic Approach to Fast Matrix Multiplication (ArXiv: 1101.5598)
Using the SHERMAN-MORRISON-WOODBURY Formula to Solve the System of Linear Equations from the Standard Multiple Shooting Method for a Linear Two Point Boundary-Value Problem is a Bad Idea (ArXiv: 1008.1193)

Darstellungstheoretische Ansätze in der schnellen Matrixmultiplikation (May 2011)
Diploma thesis, Friedrich-Schiller-Unversity of Jena, Advisor: Prof. Dr. David J. Green, 58 pages, PDF

Paradoxa der naiven Mengenlehre
(Zeitschrift "Wurzel", Feb. 2009, 5 pages) PDF
Rundungs-Frage
(Zeitschrift "mathematik lehren", Ausgabe 132, Jul. 2005, 1/2 Spalte auf Seite 2 des Vorabdrucks) PDF

Layout and Design of "Exact and Truncated Difference Schemes for Boundary Value ODEs"
Authors: IVAN P. GAVRILYUK, MARTIN HERMANN, VOLODYMYR L. MAKAROV, MYROSLAV V. KUTNIV
Publisher: Springer Basel; 1^st Edition (July 13, 2011), ISBN: 978-3034801065

2012-03-23 - 2012-03-24: Grueppchen (invited talk), Halle (Germany), http://coxeter1.mathematik.uni-halle.de/~waldecker/grueppchen/grueppchen.html
2011-11-25 - 2011-11-27: ACM International Collegiate Programming Contest, North Western European Regional Contest 2010/11, (Team Coach), Jacobs University Bremen, Bremen (Germany), http://www.nwerc.eu/
2011-09-05 - 2011-09-09: ALGO 2011, Saarbrücken (Germany), https://algo2011.mpi-inf.mpg.de/; European Symposium on Algorithms; Workshop on Algorithms for Bioinformatics; International Symposium on Parameterized and Exact Computation; Workshop on Approximation and Online Algorithms; International Symposium on Algorithms for Sensor Systems, Wireless Ad Hoc Networks and Autonomous Mobile Entities; Workshop on Algorithmic Approaches for Transportation Modeling, Optimization, and Systems
2011-08-08 - 2011-08-12: SummerBYTE, Halle (Germany), http://summerbyte.uni-halle.de/
2008-08-03 - 2008-08-09: Junior Mathematical Congress 2008, Co-Organizer of the 8^th JMC, Jena (Germany), http://www.jmc2008.org/
2008-07-15: Parallelisierung der Matrixmultiplikation (invited talk), Lecture "Elementare Methoden der Numerik", Prof. Dr. Gerhard W. Zumbusch, University of Jena, PDF, 3.3MB
2008-07-08: Parallelisierung der Matrixmultiplikation (invited talk), Seminar Scientific Computing, Prof. Dr. Gerhard W. Zumbusch, University of Jena, PDF, 2.5MB

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