We show that for any positive integer $k$ there exists a closed symplectic $4$-manifold, such that the rank of the fundamental group of the group of Hamiltonian diffeomorphisms is at least $k.$Comment: 10 page
In this paper, we use homological techniques to study the homological finiteness of $\mathrm{BDiff}(...
We determine $\pi_*(BDiff_\partial(D^{2n})) \otimes \mathbb{Q}$ for $2n \geq 6$ completely in degree...
We introduce a new stable range invariant for the classification of closed, oriented topological $4$...
We show that if a diffeomorphism of a symplectic manifold $(M^{2n},\omega)$ preserves the form $\ome...
Abstract. For a closed symplectic 4-manifold X, let Diff0(X) be the group of diffeomorphisms of X sm...
We show that the homotopy type of a finite oriented Poincaré 4 –complex is determined by its quad...
Let M be a 4-manifold with residually finite fundamental group G having b(1)(G) > 0. Assume that M c...
In this article we study the problem of minimizing aχ + bσ on the class of all symplectic 4-manifold...
For Hamiltonian circle actions on 4-manifolds, we give a generators and relations description for th...
Abstract. This paper investigates ways to enlarge the Hamiltonian subgroup Ham of the symplectomorph...
Abstract. We study the relation between the symplectomorphism group SympM of a closed connected symp...
AbstractWe present a new proof of a result due to Taubes: if (X,ω) is a closed symplectic four-manif...
We prove that any symplectic Fano 6-manifold M with a Hamiltonian S1-action is simply connected and ...
Three problems are studied in this thesis; the first problem is about four-dimensional symplectic m...
We consider the Euler characteristics $\chi(M)$ of closed orientable topological $2n$-manifolds with...
In this paper, we use homological techniques to study the homological finiteness of $\mathrm{BDiff}(...
We determine $\pi_*(BDiff_\partial(D^{2n})) \otimes \mathbb{Q}$ for $2n \geq 6$ completely in degree...
We introduce a new stable range invariant for the classification of closed, oriented topological $4$...
We show that if a diffeomorphism of a symplectic manifold $(M^{2n},\omega)$ preserves the form $\ome...
Abstract. For a closed symplectic 4-manifold X, let Diff0(X) be the group of diffeomorphisms of X sm...
We show that the homotopy type of a finite oriented Poincaré 4 –complex is determined by its quad...
Let M be a 4-manifold with residually finite fundamental group G having b(1)(G) > 0. Assume that M c...
In this article we study the problem of minimizing aχ + bσ on the class of all symplectic 4-manifold...
For Hamiltonian circle actions on 4-manifolds, we give a generators and relations description for th...
Abstract. This paper investigates ways to enlarge the Hamiltonian subgroup Ham of the symplectomorph...
Abstract. We study the relation between the symplectomorphism group SympM of a closed connected symp...
AbstractWe present a new proof of a result due to Taubes: if (X,ω) is a closed symplectic four-manif...
We prove that any symplectic Fano 6-manifold M with a Hamiltonian S1-action is simply connected and ...
Three problems are studied in this thesis; the first problem is about four-dimensional symplectic m...
We consider the Euler characteristics $\chi(M)$ of closed orientable topological $2n$-manifolds with...
In this paper, we use homological techniques to study the homological finiteness of $\mathrm{BDiff}(...
We determine $\pi_*(BDiff_\partial(D^{2n})) \otimes \mathbb{Q}$ for $2n \geq 6$ completely in degree...
We introduce a new stable range invariant for the classification of closed, oriented topological $4$...
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