作者: Agostino Butti , Davide Forcella , Amihay Hanany , David Vegh , Alberto Zaffaroni
DOI: 10.1088/1126-6708/2007/11/092
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摘要: We discuss in detail the problem of counting BPS gauge invariant operators chiral ring quiver theories living on D-branes probing generic toric CY singularities. The computation generating functions that include baryonic is based a relation between charges field theory and Kahler moduli A study interplay geometry shows given geometrical sectors appear more than once theory, leading to notion ``multiplicities". explain how decompose function for one D-brane into different compute their relevant multiplicities by introducing geometric anomalous charges. Plethystic Exponential remains major tool passing from arbitrary number N D-branes. Explicit formulae are few examples, including 3/3, 0, dP1.