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NCSOStools

NCSOStools is an open source MATLAB toolbox for

• • symbolic computation with polynomials in noncommuting variables;

  • constructing and solving sum of hermitian squares (with commutators) programs for polynomials in noncommuting variables.

It can be used in combination with semidefinite programming software, such as SeDuMi, SDPA-M or SDPT3 to solve these constructed programs.

Authors

The software has been written and is maintained by:

• • Kristijan Cafuta

  • University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Applied Mathematics, Ljubljana, Slovenia

  • Igor Klep

  • The University of Auckland, Department of Mathematics, Auckland, New Zealand

  • Janez Povh

  • University of Ljubljana, Faculty of Mechanical Engineering, Ljubljana, Slovenia

  • Rudolfovo institute, Novo Mesto, Slovenia

Considerable help in 2009 and 2010 came from Sabine Burgdorf.

Feedback

For comments, bug reports, encouragement, suggestions, complaints, etc., please send email to ncsostools@fis.unm.si.

This version of NCSOStools is distributed under the GNU General Public License 3.0.