{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,2]],"date-time":"2022-04-02T20:29:53Z","timestamp":1648931393579},"reference-count":0,"publisher":"World Scientific Pub Co Pte Lt","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Found. Comput. Sci."],"published-print":{"date-parts":[[1992,3]]},"abstract":"<jats:p> This paper continues the investigation of the concept of synchronized alternation. The open problems from Ref. 4 are solved by showing that one-way synchronized alternating (multihead) automata are as powerful as two-way ones. More precisely it is shown that: <\/jats:p><jats:p> (i) one-way synchronized alternating finite automata recognize exactly context-sensitive languages, and <\/jats:p><jats:p> (ii) NSPACE(n<jats:sup>k<\/jats:sup>) is exactly the family of languages recognized by one-way (two-way) synchronized alternating k-head finite automata, for k\u22651. <\/jats:p><jats:p> Finaly, the synchronization complexity of one-way synchronized Turing machines (1satm's) is investigated and an infinite hierarchy among classes of sets accepted by 1satm's with space and synchronization bounds between log log n and log n is established. Some closure properties of the classes in this hierarchy are also proved. <\/jats:p>","DOI":"10.1142\/s0129054192000073","type":"journal-article","created":{"date-parts":[[2004,11,24]],"date-time":"2004-11-24T19:50:24Z","timestamp":1101325824000},"page":"65-79","source":"Crossref","is-referenced-by-count":8,"title":["ON THE POWER OF ONE-WAY SYNCHRONIZED ALTERNATING MACHINES WITH SMALL SPACE"],"prefix":"10.1142","volume":"03","author":[{"given":"JURAJ","family":"HROMKOVI\u010c","sequence":"first","affiliation":[{"name":"Department of Mathematics and Computer Science, University of Paderborn, Postfach 1621 4790 Paderborn, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"KATSUSHI","family":"INOUE","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Systems Engineering, Yamaguchi University, Ube, 755, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"BRANISLAV","family":"ROVAN","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Comenius University, 842 15 Bratislava, Czechoslovakia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ANNA","family":"SLOBODOV\u00c1","sequence":"additional","affiliation":[{"name":"Institute of Computer Science, Comenius University, 842 15 Bratislava, Czechoslovakia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ITSUO","family":"TAKANAMI","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Systems Engineering, Yamaguchi University, Ube, 755, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"KLAUS W.","family":"WAGNER","sequence":"additional","affiliation":[{"name":"Department of Theoretical Computer Science, Institute of Computer Science, Julius-Maximilians-Universit\u00e4t, Am Hubland,  8700 W\u00fcrzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2011,11,20]]},"container-title":["International Journal of Foundations of Computer Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0129054192000073","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T20:51:51Z","timestamp":1565124711000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0129054192000073"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1992,3]]},"references-count":0,"journal-issue":{"issue":"01","published-online":{"date-parts":[[2011,11,20]]},"published-print":{"date-parts":[[1992,3]]}},"alternative-id":["10.1142\/S0129054192000073"],"URL":"https:\/\/doi.org\/10.1142\/s0129054192000073","relation":{},"ISSN":["0129-0541","1793-6373"],"issn-type":[{"value":"0129-0541","type":"print"},{"value":"1793-6373","type":"electronic"}],"subject":[],"published":{"date-parts":[[1992,3]]}}}