Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: No symplectic-Lipschitz structures on $S^{2n \geq 4}$   We prove that a closed manifold which admits a symplectic-Lipschitz structure
has non-vanishing even-degree cohomology groups with real coefficients. In
particular, spheres $S^{2n}, n \geq 2$ do not admit symplectic-Lipschitz
structures.

10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas