__Collaborations__

- Hans Bodlaender, Computer Science Department, Utrecht University, The Netherlands.
- Cristian Calude, Computer Science Department, The University of Auckland, New Zealand.
- Elena Calude, Mathematics and Computer Science Department, Massey University, New Zealand.
- Doug Cenzer, Mathematics Department, The University of Florida.
- Peter Cholak, Mathematics Department, Notre Dame University, USA.
- Richard Coles. Former postdoc at the CS Department, The University of Auckland.
- Barbara Csima, Mathematics Department, The University of Waterloo, Canada.
- Michael Dinneen, Computer Science Department, The University of Auckland, New Zealand.
- Rod Doweny, School of Mathematics and Computing Sciences, Victoria University of Wellington, New Zealand.
- Sergey Goncharov, Mathematics Department, Novosibirsk University, Russia.
- Hajime Ishihara, Japan Advanced Institute for Science and Technology, Japan.
- Sanjay Jain, Computer Science Department, The National University of Singapore.
- Nadim Kassimov, Tashkent Institute of Cybernetics, Uzbekistan.
- Chris Laskowski, Mathematics Department, The University of Maryland, USA.
- Steffen Lempp, Mathematics Department, The University of Wisconsin at Madison, USA.
- Jiamou Liu, Auckland University of Technology, Auckland, New Zealand.
- Denis Hirschfeldt, Mathematics Department, The University of Chicago, USA.
- Peter Hertling, Department of Computer Science, Fern University, Hagen, Germany.
- Tomasz Kowalski, Computer Science Department, Australian National University.
- Mia Minnes, Mathematics Department, UCSD, USA.
- Antonio Montalban, Mathematics Department, The University of Chicago, USA.
- Andrei Morozov, Mathematics Department, Novosibirsk University, Russia.
- Anil Nerode, Mathematics Department, Cornell University, USA.
- Andre Nies, Computer Science Department, The University of Auckland.
- Partha Roop, Department of Electrical and Computer Engineering, The University of Auckland.
- Sasha Rubin, University of Cape Town, South Africa.
- Theodore Slaman, Mathematics Department, The University of California, Berkeley, USA.
- Richard Shore, Mathematics Department, Cornell University, USA.
- Pavel Semukhin, Postdoc, The University of Regina, Canada.
- Robert Soare, Computer Science Department, The University of Chicago, USA.
- Reed Solomon, Mathematics Department, The University of Connecticut, USA
- Frank Stephan, Computer Science and Mathematical Department, The National University of Singapore.
- Ted Slaman, Mathematics Department, The University of California, Berkeley.
- Dan Turetsky, Kurt G\"odel Research Center, The Technical University of Vienna.
- Yongge Wang, Department of Software and Information Systems, The University of North Carolina, USA.
- Alexander Yakhnis, Former Postdoc at Math Sciences Inst., Cornell University, USA.
- Vladimir Yakhnis, Stilman Advanced Strategies LLC, VP and Chief Scientist, USA.