
C.V. Hanna UsckaWehlou, Ph.D. (mathematics)
Currently employed at MITM AB  Coowner and Manager, working on a new medical record iotaMed and translations of children's books from Swedish to Polish.
Updated November 1, 2015
PhD Dissertation September 25, 2009
I presented my thesis on September 25, 2009. Click the link above for the thesis, photos, and video.
Personal data
 Born in Wabrzezno, Poland, 1973.
 Married (to Martin Wehlou), two children (Milena Wehlou and Julian Wehlou)
 Lives in Uppsala
 Countries of residence: POLAND (February 1973  December 1995), BELGIUM (January 1996  October 2001), SWEDEN (October 2001  onwards).
 Here are the links to my cv in pdf format and
to the list of my publications and
scientific presentations.
Education

199297: University of Torun (Copernicus University), Poland, masters degree in
theoretical mathematics with teaching qualifications. Diploma officially
approved as equivalent (or more) to a Belgian "Licentiaat
Wiskunde" with "Pedagogische kwalificatie", and thus
automatically approved in all European Community countries.
Thesis: "Continuation method for contractions and applications in
differential calculus".
Graduated with top honors.

20032009 (of which almost 19 months, 7/6/2005  1/1/2007, on maternity leave):
Ph.D. from Uppsala University, Sweden.
Thesis: "Digital lines, Sturmian words, and continued fractions" defended on 25 September 2009.
Languages

Fluent in Polish, Swedish, Dutch, English and Russian (well, in the latest one I am not so fluent any more...). Planning to learn French (or Italian, or maybe Spanish  I love them all!).
Research
Scholarships and awards
Publications

Hanna UsckaWehlou. Digital lines with irrational slopes. Theoretical Computer Science 377 (2007) 157169.

Hanna UsckaWehlou. Continued fractions and digital lines with irrational slopes. Published as a conference paper for
The 14th International Conference on DISCRETE GEOMETRY for COMPUTER IMAGERY. DGCI 2008, LNCS 4992, pp. 93104, 2008.

Hanna UsckaWehlou. A Runhierarchical Description of Upper Mechanical Words with Irrational Slopes Using Continued Fractions. Published as a conference paper in Proceedings of 12th Mons Theoretical Computer Science Days (Mons, Belgium), 2730 August 2008.

Hanna UsckaWehlou. Runhierarchical structure of digital lines with irrational slopes in terms of continued fractions and the Gauss map (an extended version of the DGCI 2008 paper). Pattern Recognition 42 (2009) 22472254 (DGCI Special Issue).

Hanna UsckaWehlou. Two Equivalence Relations on Digital Lines with Irrational Slope. A Continued Fraction Approach to Upper Mechanical Words. Theoretical Computer Science 410 (2009) 36553669.

Hanna UsckaWehlou. Sturmian words with balanced construction. In Proceedings of Words 2009, the 7th International Conference on Words (Salerno, Italy), 1418 September 2009.

Hanna UsckaWehlou. Continued Fractions, Fibonacci Numbers, and Some Classes of Irrational Numbers. Acta Mathematica Academiae Paedagogicae Nyiregyhaziensis 26(1) 2010.
Reports
 Hanna UsckaWehlou. Digital Lines. In: Graduate School in Mathematics and Computing, FMB,
Graduate School in Mathematics Education, FMD, Open House, Uppsala, November 1516, 2004,
C. Kiselman, E. Melin, and M. Neytcheva, eds. Uppsala: Uppsala University, 2005, pp. 111115.

Hanna UsckaWehlou. Digital lines with irrational slopes. U.U.D.M. Report 2005:20, June 2005, 17 pp.
Ph.D. Thesis
 Hanna UsckaWehlou. Digital lines, Sturmian words, and continued fractions; 152 pp. (introduction 59 pp., 6 papers 93 pp.). In Uppsala Dissertations in Mathematics 65, 2009. ISBN: 9789150620900. You are welcome to download my thesis (pdf). You can also get the introductory part of my thesis here.
Scientific Presentations

1122 July 1994: Participated in the "33rd session of the Seminaire de Mathematique
Superieures (SMS) on Topological Methods in Differential Equations and
Inclusions" in Montreal, Canada.

15 December 2003: Presentation "Digital Lines" at Centre for Image Analysis, Uppsala.

1516 November 2004: Presentation "Digital Lines". FMBFMD Open House Conference.

24 January 2005: Presentation "Theory of Digital Lines" at Centre for Image Analysis, Uppsala.

1618 April 2008: Participated in the 14th International Conference on DISCRETE GEOMETRY for COMPUTER IMAGERY, DGCI 2008. Presented a poster there and gave a really short oral presentation.

2730 August 2008: Participated in the 12th Mons Theoretical Computer Science Days (Mons, Belgium), JM 2008. Presented my article there (gave an oral presentation).

8 November 2008: I was the leader of a workshop "groups" for the participants of "Sonja Kovalevskydagarna" at Uppsala University. Here you can find the notes I wrote for the students (in Swedish). I worked also in the problemsolving group.

1418 September 2009: Participated in the 7th International Conference on Words (Salerno, Italy), Words 2009. I presented my article there (on 17 September) and gave an oral presentation.

25 September 2009: I presented my Ph.D. thesis, see my page on this event

27 October 2009: Presentation Klasy liczb niewymiernych zdefiniowane przez ich rozwiniecia na ulamki lancuchowe during the seminar "Automorfizmy i derywacje" in the Faculty of Mathematics and Computer Science of the Copernicus University in Torun, Poland.

2 December 2009: Presentation Some combinatorial problems related to digital straight lines with irrational slopes and to balanced aperiodic words during the combinatorics seminar at KTH, the Royal Institute of Technology, Stockholm, Sweden. Here you can find my presentation in pdf format.

2225 February 2010: Scientific visit at the research group Formal Languages and Concurrency in the Faculty of Mathematics and Computer Science of the Copernicus University in Torun, Poland. Discussions about the project Mathematical methods in modeling and analysis of concurrent systems during a workshop on Petri nets and traces.

1923 July 2010: Workshop MASYW 2010 (Mathematical methods in modeling and analysis of concurrent systems) in Tlen (Poland) organized by the research group Formal Languages and Concurrency in the Faculty of Mathematics and Computer Science of the Copernicus University in Torun, Poland.
Teaching material written 20002008

Autumn 2000, Complexe getallen (Complex numbers, in Dutch), an interactive Mathematica notebook designed, programmed and written by me during my work for the Exploot project (led by Professor Ivan Cnop) at the Flemish University of Brussels, Belgium. The notebook has been used as teaching material for Dutch speaking students. It can be found on the home page of Exploot (you have to click on "Fourier en complexe analyse" left on the page, then click on "complexe getallen" left on the next page).

Spring 2001, Complexe veeltermen (Complex polynomials, in Dutch), an interactive Mathematica notebook designed, programmed and written by me during my work for the Exploot project (led by Professor Ivan Cnop) at the Flemish University of Brussels, Belgium. The notebook has been used as teaching material for Dutch speaking students. It can be found on the home page of Exploot (you have to click on "Fourier en complexe analyse" left on the page, then click on "complexe veeltermen 1" left on the next page).

Spring 2001, Complexe getallen en de meetkunde (Complex numbers and geometry, in Dutch), an interactive Mathematica notebook designed, programmed and written by me during my work for the Exploot project (led by Professor Ivan Cnop) at the Flemish University of Brussels, Belgium. The notebook can be found on my page on geometry (the last item on this page).

November 2008, Minnesanteckningar for deltagarna i workshop GRUPPER (Notes for the participants of the workshop GROUPS, in Swedish), notes I wrote for the "Sonja Kovalevskydagarna" at Uppsala University. Here you can find the text as pdf.
Teaching Experience

2001 spring, University of Brussels, Belgium: onedimensional calculus, Prof I. Cnop.

2003 fall  2004 spring, Uppsala University, onedimensional calculus, students engineering, lecturer L. Abrahamsson.

2004 fall, Uppsala University, onedimensional calculus, lecturer T. Erlandsson.

2007 spring, Uppsala University, onedimensional calculus, lecturers W. Tucker and P. Bäcklund.

2008 spring, Uppsala University, onedimensional calculus, lecturer Jörgen Östensson.

2009 spring, Uppsala University, onedimensional calculus, lecturer L. Abrahamsson.
Old and New Experiences
Note: dates in format (d/m/yyyy)

Period 
26/9/2013  onwards 
Employer 
Company: MiTM AB. 
Position 
Literary translator from Swedish to Polish. 
Project 
Translating of a children's book "Millans äventyr" and its sequel (four books about Millan) by Milena Bergquist and of a book "En riktig människa" by Gunilla Gerland. 

Period 
1/8/2010  onwards 
Employer 
Company: MiTM AB. 
Position 
Coowner, manager. 
Project 
iotaMed 

Period 
1/11/2009  31/07/2010 
Employer 
Uppsala University, Sweden: Department of
Mathematics, Department of Information Technology. 
Position 
free student 
Subject 
Selfstudies in mathematics and theoretical computer science (combinatorics on words, formal languages). Working on the project Mathematical methods in modeling and analysis of concurrent systems. My scientific advisor in Sweden 1/02/201031/07/2010: Professor Parosh Aziz Abdulla from the Department of Information Technology of Uppsala University. My scientific advisor in Poland: Professor Edward Ochmanski from the research group Formal Languages and Concurrency in the Faculty of Mathematics and Computer Science of the Copernicus University in Torun. I got two scholarships for this project: one of them (the Lennander Scholarship) form Uppsala University, the second one (Magnuson scholarship) from The Royal Swedish Academy of Sciences. 

Period 
12/6/2005  onwards 
Tasks 
Mother to Julian 

Period 
1/7/2003  30/9/2009 (on maternity leave 7/6/20051/1/2007) 
Employer 
Uppsala University (Sweden), Dept. of
Mathematics 
Position 
Ph.D. student (FMB) 
Subject 
Digital Geometry and Mathematical Morphology, Image
Analysis 
Tasks 
Thesis work and teaching assistant. See also a articles and presentations on digital lines. I defended my Ph.D. thesis September 25 (2009). 

Period 
2/2/2002  onwards 
Tasks 
Mother to Milena 

Period 
1/10/2001  1/2/2002 
Tasks 
Free student at Uppsala University, Sweden, Mathematics and
Computer Science. Misc. courses. 

Period 
1/4/2001  30/9/2001 
Employer 
Cactus Computing bvba, Belgium 
Position 
Software developer 
Project 
Animation 
Operating systems 
W98, NT, W2K 
Languages 
Macromedia Flash 
Tasks 
In training 

Period 
15/10/2000  31/3/2001 
Employer 
VUB (Flemish University of Brussels,
Belgium) 
Position 
Scientific staff 
Project 
Exploot  Using computers in teaching
university mathematics for engineering students and mathematics majors. 
Operating systems 

Languages 
Wolfram Mathematica 
Tasks 
Planning, designing and writing lesson packages in
Mathematica, including theory, graphic illustrations and animations and
interactive excercises. (For examples, see overview of downloads.) 

Period 
15/5/2000  2/10/2000 
Employer 
Quadrat NV, Belgium 
Position 
Software developer 
Project 
Centura based development and
maintenance of a hospital appointment system. 
Operating systems 
NT4 
Languages 
Centura 
Tasks 

Enlarging fields in forms, occasionally
moving them around, too.

Creating classes for something I forgot
what it was. But they said it was important.


Period 
29/9/1997  12/5/2000 
Employer 
Lano NV, Belgium 
Position 
Sales assistant Eastern
Europe 
Project 
I doubt they had any. 
Operating systems 
I doubt they had any,
either. 
Languages 
Polish, Russian 
Tasks 
Helping sell carpets to Russians. 
