The number of simply-connected trivalent 2-dimensional stratifolds
نویسندگان
چکیده
We describe a method for counting the number of 1-connected trivalent 2-stratifolds with given singular curves and 2-manifold components.
منابع مشابه
Some results of semilocally simply connected property
If we consider some special conditions, we can assume fundamental group of a topological space as a new topological space. In this paper, we will present a number of theorems in topological fundamental group related to semilocally simply connected property for a topological space.
متن کاملAn 8-dimensional non-formal simply connected symplectic manifold
We answer in the affirmative the question posed by Babenko and Taimanov [3] on the existence of non-formal simply connected compact symplectic manifolds of dimension 8.
متن کاملAn 8-dimensional Non-formal Simply Connected Manifold
Using Gompf construction [5], we show an 8–dimensional simply connected and compact oriented manifold which is non-formal. Moreover we prove that such a manifold admits a symplectic structure. In this short note, we construct an example of a compact simply connected and symplectic 8–dimensional manifold which is non-formal. Such a manifold M is obtained as the Gompf connected sum [5] of the man...
متن کاملsome results of semilocally simply connected property
if we consider some special conditions, we can assume fundamental group of a topological space as a new topological space. in this paper, we will present a number of theorems in topological fundamental group related to semilocally simply connected property for a topological space.
متن کاملOn Simply-connected 4-manifolds
This paper concerns (but does not succeed in performing) the diffeomorphism classification of closed, oriented, differential, simply-connected 4-manifolds. It arises out of the observation (due to Pontrjagin and Milnor [2]) that if two such manifolds Mx and M2 have isomorphic quadratic forms of intersection numbers on #2(Jft-), then there is a map / : M1-^-Mi which is a homotopy equivalence and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2022
ISSN: ['1879-3207', '0166-8641']
DOI: https://doi.org/10.1016/j.topol.2021.107957