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L-theory
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{{DISPLAYTITLE:''L''-theory}} In [[mathematics]], algebraic '''''L''-theory''' is the [[K-theory|''K''-theory]] of [[quadratic form]]s; the term was coined by [[C. T. C. Wall]], with ''L'' being used as the letter after ''K''. Algebraic ''L''-theory, also known as "Hermitian ''K''-theory", is important in [[surgery theory]].<ref>{{cite web|url=https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.582711 |title=L-theory, K-theory and involutions, by Levikov, Filipp, 2013, On University of Aberdeen(ISNI:0000 0004 2745 8820)}}</ref>
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