Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flop Invariance of Refined Topological Vertex and Link Homologies   It has been proposed recently that the topological A-model string theory on
local toric Calabi-Yau manifolds has a two parameter extension. Amplitudes of
the two parameter topological strings can be computed using a diagrammatic
method called the refined topological vertex. In this paper we study properties
of the refined amplitudes under the flop transition of toric Calabi-Yau
three-folds. We also discuss that the slicing invariance and the flop
transition imply a simple formula for the homological sl(N) invariants of the
Hopf link. The new expression for the invariants gives a simple refinement of
the Hopf link invariant of Chern-Simons theory.

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The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
2
The categories of this paper are: math
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The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
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The categories of this paper are: econ
26
The categories of this paper are: bayes-an