4 papers
math.GT2026
The Heegaard Floer d-invariant for more rational homology spheres
Isabella Khan
The Heegaard Floer d-invariant for a rational homology sphere Y and spin-structure is defined as the minimal absolute grading of a generator of $HF^+(Y; \mathfra…
math.GT2025
Koszul dual -algebras from star-shaped diagrams -- part 2
Isabella Khan
This paper proves a Koszul duality result between weighted -algebras constructed in the author's previous work. In the process, we construct a new box tensor…
math.GT2025
Koszul dual algebras for star-shaped diagrams -- Part 1
Isabella Khan
By slicing the Heegaard diagram for a given -manifold in a particular way, it is possible to construct -bimodules, the tensor product of which retrieves th…
math.GT2025
Bordered algebras and the wrapped Fukaya category
Isabella Khan
This paper establishes an isomorphism between endomorphism algebras from the wrapped Fukaya category of a type of punctured surface, and the class of A-infinity algebras related to…