{"title":"次指数时间内的坍缩度","authors":"D. Joseph, R. Pruim, Paul Young","doi":"10.1109/SCT.1994.315788","DOIUrl":null,"url":null,"abstract":"We show that there are subexponential deterministic time classes that have collapsing degrees. In particular, we prove the following: Let t be any effectively superpolynomial time bound. Then there is a set A/spl isin/DTIME(t) such that every set B/spl isin/deg/sub msup p/(A) is p-isomorphic to A.<<ETX>>","PeriodicalId":386782,"journal":{"name":"Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory","volume":"421 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Collapsing degrees in subexponential time\",\"authors\":\"D. Joseph, R. Pruim, Paul Young\",\"doi\":\"10.1109/SCT.1994.315788\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We show that there are subexponential deterministic time classes that have collapsing degrees. In particular, we prove the following: Let t be any effectively superpolynomial time bound. Then there is a set A/spl isin/DTIME(t) such that every set B/spl isin/deg/sub msup p/(A) is p-isomorphic to A.<<ETX>>\",\"PeriodicalId\":386782,\"journal\":{\"name\":\"Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory\",\"volume\":\"421 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SCT.1994.315788\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SCT.1994.315788","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We show that there are subexponential deterministic time classes that have collapsing degrees. In particular, we prove the following: Let t be any effectively superpolynomial time bound. Then there is a set A/spl isin/DTIME(t) such that every set B/spl isin/deg/sub msup p/(A) is p-isomorphic to A.<>
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