{"title":"实数的布雷顿动机同调","authors":"Bill Deng, Mircea Voineagu","doi":"arxiv-2404.06697","DOIUrl":null,"url":null,"abstract":"Over the real numbers with $\\Z/2-$coefficients, we compute the\n$C_2$-equivariant Borel motivic cohomology ring, the Bredon motivic cohomology\ngroups and prove that the Bredon motivic cohomology ring of the real numbers is\na proper subring in the $RO(C_2\\times C_2)$-graded Bredon cohomology ring of a\npoint. This generalizes Voevodsky's computation of the motivic cohomology ring of\nthe real numbers to the $C_2$-equivariant setting. These computations are\nextended afterwards to any real closed field.","PeriodicalId":501143,"journal":{"name":"arXiv - MATH - K-Theory and Homology","volume":"14 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bredon motivic cohomology of the real numbers\",\"authors\":\"Bill Deng, Mircea Voineagu\",\"doi\":\"arxiv-2404.06697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Over the real numbers with $\\\\Z/2-$coefficients, we compute the\\n$C_2$-equivariant Borel motivic cohomology ring, the Bredon motivic cohomology\\ngroups and prove that the Bredon motivic cohomology ring of the real numbers is\\na proper subring in the $RO(C_2\\\\times C_2)$-graded Bredon cohomology ring of a\\npoint. This generalizes Voevodsky's computation of the motivic cohomology ring of\\nthe real numbers to the $C_2$-equivariant setting. These computations are\\nextended afterwards to any real closed field.\",\"PeriodicalId\":501143,\"journal\":{\"name\":\"arXiv - MATH - K-Theory and Homology\",\"volume\":\"14 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-04-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - K-Theory and Homology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2404.06697\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - K-Theory and Homology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2404.06697","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Over the real numbers with $\Z/2-$coefficients, we compute the
$C_2$-equivariant Borel motivic cohomology ring, the Bredon motivic cohomology
groups and prove that the Bredon motivic cohomology ring of the real numbers is
a proper subring in the $RO(C_2\times C_2)$-graded Bredon cohomology ring of a
point. This generalizes Voevodsky's computation of the motivic cohomology ring of
the real numbers to the $C_2$-equivariant setting. These computations are
extended afterwards to any real closed field.