Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
See the paper below.
"On the open problem of Ginsburg concerning semilinear sets and related problems" by Ibarra and Seki, TCS, 501, pp.11-19, 2013
link: http://dl.acm.org/citation.cfm?id=2527409
Hope it can help.
"On the open problem of Ginsburg concerning semilinear sets and related problems" by Ibarra and Seki, TCS, 501.
"On the open problem of Ginsburg concerning semilinear sets and related problems" by Ibarra and Seki, TCS 501, pp.11-19, 2013