Monoidal categorifications of cluster algebras

introduction

• replace cluster variables by modules

 

 

notions

• quiver : oriented graph
• representation of a quiver : collection of vector space and linear maps between them
• homomorphism of 2 quiver representations
• path algebra of a quiver
  
  • given a quiver Q, a path p is a sequence of arrows with some conditions
  • path algebra : set of all k-linear combinations of all paths (including e_i's)
  • p_1p_2 will correspond to a composition \(p_2\circ p_1\) of two maps (\(U\overset{P_2}{\rightarrow }V\overset{P_1}{\rightarrow }W\))
• quiver representation is in fact, a representaion of path algebra of a quiver

 

 

Caldero-Chapoton formula

• CC(V) =\chi_{V}

 

 

monoidal categorification

M : monoidal categorification

M is a monoidal categorification of A if the Grothendieck ring of M is isomorphic to A and if

(i) cluster monomials' of A are the classes of real simple objects of M

(ii) cluster variables' of a (including coefficients) are classes of real prime simple objects

 

 

\prop

Suppose that A has a monoidal categorification M and also that each object B in M has unique finite composition series

(find simple subobject A_1, then simple subobject of A_2 of B/A_1, etc ... composition series if colleciton of all A's)

Then

(i) each cluster variable of a has positivie Laurent expansion with respect to any cluster

(ii) cluster monomials are linearly independent

 

 

 

periodicity conjecture

• outline of a proof of the periodicity conjecture for pairs of Dynkin diagrams

 

 

 

history

• http://www.google.com/search?hl=en&tbs=tl:1&q=

 

 

related items

• Quiver representations
• categorification of quantum groups

 

 

encyclopedia

• http://en.wikipedia.org/wiki/
• http://www.scholarpedia.org/
• http://eom.springer.de
• http://www.proofwiki.org/wiki/
• Princeton companion to mathematics(Companion_to_Mathematics.pdf)

 

 

books

 

• 2011년 books and articles
• http://library.nu/search?q=
• http://library.nu/search?q=

 

 

expositions

• Leclerc, Bernard. 2011. “Quantum loop algebras, quiver varieties, and cluster algebras”. 1102.1076 (2월 5). http://arxiv.org/abs/1102.1076.
• Keller, Bernhard. 2008. “Cluster algebras, quiver representations and triangulated categories”. 0807.1960 (7월 12). http://arxiv.org/abs/0807.1960.
• Cluster algebras and quiver representations, Keller, Bernhard, 2006
• Total positivity, cluster algebras and categorification

 

 

articles

• David Hernandez, Bernard Leclerc , Monoidal categorifications of cluster algebras of type A and D http://arxiv.org/abs/1207.3401
• Nakajima, Hiraku. 2011. “Quiver varieties and cluster algebras”. Kyoto Journal of Mathematics 51 (1): 71-126. doi:10.1215/0023608X-2010-021.
• Rupel, Dylan. 2010. “On Quantum Analogue of The Caldero-Chapoton Formula”. 1003.2652 (3월 12). doi:doi:10.1093/imrn/rnq192. http://arxiv.org/abs/1003.2652.
• Caldero, Philippe, 와/과Andrei Zelevinsky. 2006. “Laurent expansions in cluster algebras via quiver representations”. math/0604054 (4월 3). http://arxiv.org/abs/math/0604054.
• Caldero, Philippe, 와/과Frederic Chapoton. 2004. “Cluster algebras as Hall algebras of quiver representations”. math/0410187 (10월 7). http://arxiv.org/abs/math/0410187.
   
  
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• http://arxiv.org/
• http://www.pdf-search.org/
• http://pythagoras0.springnote.com/
• http://math.berkeley.edu/~reb/papers/index.html
• http://dx.doi.org/

 

 

question and answers(Math Overflow)

• http://mathoverflow.net/search?q=
• http://mathoverflow.net/search?q=
• http://math.stackexchange.com/search?q=
• http://math.stackexchange.com/search?q=

 

blogs

• 구글 블로그 검색
  
  • http://blogsearch.google.com/blogsearch?q=
    
  • http://blogsearch.google.com/blogsearch?q=
• http://ncatlab.org/nlab/show/HomePage

 

 

experts on the field

• http://arxiv.org/

 

 

links

• Detexify2 - LaTeX symbol classifier
• 수식표현 안내
• The On-Line Encyclopedia of Integer Sequences
• http://functions.wolfram.com/