Unwrapped continuation invariance in Lagrangian Floer theory: energy and $C^0$ estimates

Details Unwrapped continuation invariance in Lagrangian Floer theory: energy and $C^0$ estimates Unwrapped continuation invariance in Lagrangian Floer theory: energy and $C^0$ estimates

2009-10-06

arxiv.org/abs/0910.1131v1

Mathematics

Symplectic Geometry

31 pages; Comments are welcome

Scientific paper

We consider pairs of Lagrangian submanifolds $(L_0,L), (L_1, L)$ belonging to the class of Lagrangian submanifolds with \emph{conic} ends on \emph{Weinstein manifolds}. The main purpose of the present paper is to define a canonical chain map $h_\CL: CF(L_0,L) \to CF(L_1,L)$ of Lagrangian Floer complex inducing an isomorphism in homology, under the Hamiltonian isotopy $\CL=\{L_s\}_{0 \leq s\leq 1}$ generated by \emph{conic} Hamiltonian functions such that the intersections $L \cap L_s$ do not escape to infinity. The main ingredients of the proof is an a priori bound for general isotopy of the energy \emph{quadratic} at infinity and a $C^0$-bound for the \emph{$C^1$-small} isotopy $\CL = \{L_s\}$, for the associated pseudo-holomorphic map equations with \emph{moving} Lagrangian boundary induced by a conic Hamiltonian isotopy. For the Lagrangian submanifolds with \emph{asymptotically conic} ends, we construct a natural homomorphism $h_\LL: HF(L_0,L) \to HF(L_1,L)$ for which the corresponding chain map may \emph{not} necessarily exist. This provides a more conventional construction of the chain isomorphism which replaces the sophisticated method using the Lagrangian cobordism via the machinery of \cite{kasturi-oh1,kasturi-oh2} whose details were only outlined in \cite{oh:gokova}.

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