Ben Ward: Graph complexes via Feynman transforms

ABSTRACT:  In the first part of this talk we will (re)-introduce modular operads and the Feynman transform.  We will then use this language to restate the theorem of Conant-Hatcher-Kassabov-Vogtmann discussed in Alexander's talk earlier this semester.  In the second part of the talk I will state intertwining theorems for generalizations of operads and show how these theorems can be used to give a Koszul dual interpretation of the Theorem of CHKV mentioned above.