RT Book, Section T1 The dδ–lemma for weakly Lefschetz symplectic manifold A1 Fernández, M. A1 Muñoz, Vicente A1 Ugarte, Luis A2 Burei, Jarolim A2 Kowalski, Oldrich A2 Krupka, Demeter A2 Slovak, Jan AB For a symplectic manifold (M, ω), not necessarily hard Lefschetz, we prove a version of the Merkulov dδ–lemma ([17, 4]). We also study the dδ–lemma and related cohomologies for compact symplectic solvmanifolds. PB Mathematical Institute of Charles University in Prague SN 8086732630 YR 2005 FD 2005 LK https://hdl.handle.net/20.500.14352/53235 UL https://hdl.handle.net/20.500.14352/53235 LA eng NO 9TH International Conference on Differential Geometry and its Applications. NO MCyT NO UPV DS Docta Complutense RD 9 abr 2025