Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Coffey, Joseph"'
Autor:
Coffey, Joseph R., Snedeker, Jesse
Publikováno v:
In Cognitive Psychology September 2024 153
Let (M,\omega) be a symplectic manifold, and Sigma a compact Riemann surface. We define a 2-form on the space of immersed symplectic surfaces in M, and show that the form is closed and non-degenerate, up to reparametrizations. Then we give conditions
Externí odkaz:
http://arxiv.org/abs/0905.3009
Autor:
Coffey, Joseph
Let M and N be closed n-dimensional manifolds, and equip N with a volume form \sigma. Let \mu be an exact n-form on M. Arnold then asked the question: When can one find a map f:;N such that f*\sigma=\mu. In 1973 Eliashberg and Gromov showed that this
Externí odkaz:
http://arxiv.org/abs/math/0512126
Autor:
Coffey, Joseph
We consider the homotopy type of maps between symplectic surface whose graphs form symplectic submanifolds of the product. We give a purely topological model for this space in terms of maps with constrained numbers of pre-images. We use this to show
Externí odkaz:
http://arxiv.org/abs/math/0407221
Autor:
Coffey, Joseph
Publikováno v:
Geom. Topol. 9 (2005) 935-970
The symplectomorphism group of a 2-dimensional surface is homotopy equivalent to the orbit of a filling system of curves. We give a generalization of this statement to dimension 4. The filling system of curves is replaced by a decomposition of the sy
Externí odkaz:
http://arxiv.org/abs/math/0404496
Autor:
Coffey, Joseph R.1 (AUTHOR) jrcoffey@g.harvard.edu, Shafto, Carissa L.1 (AUTHOR), Geren, Joy C.1 (AUTHOR), Snedeker, Jesse1 (AUTHOR)
Publikováno v:
Child Development. Jan2022, Vol. 93 Issue 1, p237-253. 17p. 3 Charts, 4 Graphs.