Root multiplicities for Nichols Algebras of diagonal type

In this thesis we chase the root multiplicities for Nichols algebras of diagonal type. Based on an inequality for the number of Lyndon words and an identity for the shuffle map, we illustrate when the multiplicity of a root is smaller than in the tensor algebra of a braided vector space of diagonal...

पूर्ण विवरण

में बचाया:
ग्रंथसूची विवरण
मुख्य लेखक: Zheng, Ying
अन्य लेखक: Heckenberger, Istvan (Prof. Dr.) (शोध सलाहकार)
स्वरूप: Dissertation
भाषा:अंग्रेज़ी
प्रकाशित: Philipps-Universität Marburg 2018
विषय:
ऑनलाइन पहुंच:पीडीएफ पूर्ण पाठ
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विवरण
सारांश:In this thesis we chase the root multiplicities for Nichols algebras of diagonal type. Based on an inequality for the number of Lyndon words and an identity for the shuffle map, we illustrate when the multiplicity of a root is smaller than in the tensor algebra of a braided vector space of diagonal type, and determine the dimension of the kernel of the shuffle map considered as an operator acting on the free algebra. Moreover, we give an complete expression for the multiplicities of a class of roots for Nichols algebras of diagonal type of rank two.
भौतिक वर्णन:91 Seiten
डिजिटल ऑब्जेक्ट पहचानकर्ता:10.17192/z2018.0491