Zobrazeno 1 - 10
of 4 676
pro vyhledávání: '"branched covering"'
Autor:
Hu, Runjie
Artin-Mazur established the \'etale homotopy theory of schemes and proved the generalized Riemann existence theorem, i.e., all \'etale morphisms of a complex finite type scheme induce its profinite completion. We generalize it to piecewise linear pse
Externí odkaz:
http://arxiv.org/abs/2309.05231
Autor:
Alexandrou, Theodosis
Publikováno v:
Geometriae Dedicata (2022)
Let $f\colon S'\longrightarrow S$ be a cyclic branched covering of smooth projective surfaces over $\mathbb{C}$ whose branch locus $\Delta\subset S$ is a smooth ample divisor. Pick a very ample complete linear system $|\mathcal{H}|$ on $S$, such that
Externí odkaz:
http://arxiv.org/abs/2110.02093
Autor:
Kim, Inkang, Wan, Xueyuan
In the paper, we consider the harmonic maps between surfaces $\Sigma$ and $S$ in the homotopy class of a (branched) covering map $u_0$. We prove the uniqueness of critical points of energy function and the injectivity of Hopf differential if $u_0$ is
Externí odkaz:
http://arxiv.org/abs/2007.10027
Publikováno v:
Open Book Series 5 (2022) 31-42
We prove that any closed simply-connected smooth 4-manifold is 16-fold branched covered by a product of an orientable surface with the 2-torus, where the construction is natural with respect to spin structures. In particular this solves Problem 4.113
Externí odkaz:
http://arxiv.org/abs/2102.01043
Autor:
García, Alejo
A well-known result from Brouwer states that any orientation preserving homeomorphism of the plane with no fixed points has an empty non-wandering set. In particular, an invariant compact set implies the existence of a fixed point. In this paper we g
Externí odkaz:
http://arxiv.org/abs/1906.03770
Autor:
Nakamura, Inasa
Publikováno v:
Topology Appl. 256 (2019) 26-45
A branched covering surface-knot is a surface-knot in the form of a branched covering over a surface-knot. For a branched covering surface-knot, we have a numerical invariant called the simplifying number. We show that branched covering surface-knots
Externí odkaz:
http://arxiv.org/abs/1809.05227
Autor:
Nakamura, Inasa
Publikováno v:
Illinois J. Math. 61 (2017) no.3-4, 497-515
A branched covering surface-knot is a surface-knot in the form of a branched covering over an oriented surface-knot $F$, where we include the case when the covering has no branch points. A branched covering surface-knot is presented by a graph called
Externí odkaz:
http://arxiv.org/abs/1709.07762
Autor:
Nakamura, Inasa
Publikováno v:
J. Knot Theory Ramifications Vol. 27, No. 5 (2018) 1850031
A branched covering surface-knot over an oriented surface-knot $F$ is a surface-knot in the form of a branched covering over $F$. A branched covering surface-knot over $F$ is presented by a graph called a chart on a surface diagram of $F$. For a bran
Externí odkaz:
http://arxiv.org/abs/1707.07888
Publikováno v:
Transactions of the American Mathematical Society, 1980 May 01. 259(1), 157-165.
Externí odkaz:
https://www.jstor.org/stable/1998151
Autor:
Hillman, J. A.
We give an explicit formula for a 2-fold branched covering from $\mathbb{CP}^2$ to $S^4$, and relate it to other maps between quotients of $S^2\times{S^2}$.
Externí odkaz:
http://arxiv.org/abs/1705.05038