Results 41 to 50 of about 11,763 (233)

Groups Of Automorphisms Of Hyperelliptic Klein Surfaces Of Genus 3 [PDF]

, 1986
The order of a group of automorphisms of a compact Klein surface of genus 3 with boundary does not exceed 24 [see C. L. May, Pac. J. Math. 59, 199-210 (1975; Zbl 0422.30037)]. These groups of automorphisms are quotients of NEC groups of isometries of the
Bujalance García, Emilio, Etayo Gordejuela, José Javier, Gamboa Mutuberria, José Manuel   +2 more
core   +1 more source

Finite cyclic q-group’s automorphisms with qr -generator

Data Analytics and Applied Mathematics
The finite cyclic q-group, where q being odd prime, requires generators to validate the formation of automorphisms. A summary of cyclic groups, automorphisms, and characteristics is provided as a foundation for this research.
Fatin Hanani Hasan, Mohd Sham Mohamad, Yuhani Yusof, Nor Amirah Mohd Busul Aklan, Siti Hasanah Jusoo, Ekkasit Sangwisut   +5 more
doaj   +1 more source

Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley   +1 more source

Carleman approximation by holomorphic automorphisms of Cⁿ [PDF]

, 2018
We approximate smooth maps defined on non-compact totally real manifolds by holomorphic automorphisms of ...
Kutzschebauch, Frank, Wold, Erlend Fornæss, Wold, Erlend Fornaess   +2 more
core   +1 more source

The automorphism group of Poisson algebras on k[x; y]

Қарағанды университетінің хабаршысы. Математика сериясы, 2017
Poisson algebras play a key role in the Hamiltonian mechanics, symplectic geometry and also are central in the study of quantum groups. At present, Poisson algebras are investigated by the many mathematicians of Russia, France, the USA, Brazil ...
U. Turusbekova, G. Azieva
doaj   +1 more source

A Coarse Geometric Approach to Graph Layout Problems

Journal of Graph Theory, EarlyView.
ABSTRACT We define a range of new coarse geometric invariants based on various graph–theoretic measures of complexity for finite graphs, including treewidth, pathwidth, cutwidth and bandwidth. We prove that, for bounded degree graphs, these invariants can be used to define functions which satisfy a strong monotonicity property, namely, they are ...
Wanying Huang, David Hume, Samuel J. Kelly, Ryan Lam   +3 more
wiley   +1 more source

Distinguishing Cartesian Products of Countable Graphs

Discussiones Mathematicae Graph Theory, 2017
The distinguishing number D(G) of a graph G is the minimum number of colors needed to color the vertices of G such that the coloring is preserved only by the trivial automorphism.
Estaji Ehsan, Imrich Wilfried, Kalinowski Rafał, Pilśniak Monika, Tucker Thomas   +4 more
doaj   +1 more source

Quadratic Poisson algebras on k[x, y, z]and their automorphisms

Қарағанды университетінің хабаршысы. Математика сериясы, 2016
One of the important directions in modern mathematics is applications of Poisson structures and to various problems of mathematics and theoretical mechanics. These problems arise in dynamics of a rigid body, the celestial mechanics, the theory of curls,
U.K. Turusbekova, G.T. Azieva
doaj   +1 more source

Kuga–Satake Construction on Families of K3 Surfaces of Picard Rank 14

Mathematische Nachrichten, EarlyView.
ABSTRACT The isometry between the type IV6 and the type II4 hermitian symmetric domains suggests a possible relation between suitable moduli spaces of K3 surfaces of Picard rank 14 and of polarized abelian 8‐folds with totally definite quaternion multiplication. We show how this isometry induces a geometrically meaningful map between such moduli spaces
Flora Poon
wiley   +1 more source

Upper bounds of orders of automorphism groups of leafless metric graphs

AKCE International Journal of Graphs and Combinatorics
We prove a tropical analogue of the theorem of Hurwitz: A leafless metric graph of genus [Formula: see text] has at most 12 automorphisms when g = 2 and [Formula: see text] automorphisms when [Formula: see text].
Yusuke Nakamura, JuAe Song
doaj   +1 more source