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Let $G=(V,E)$ be a simple connected graph. A set of vertices $S\subseteq V$ is said to be a dominating set if for any vertex in $V\setminus S$ is adjacent to at least one vertex in $S$. The domination number $\gamma(G)$ of $G$ is the…

Combinatorics · Mathematics 2016-03-25 Lang Tang , Shenglin Zhou

A homoclinic class of a vector field is the closure of the transverse homoclinic orbits associated to a hyperbolic periodic orbit. An attractor (a repeller) is a transitive set to which converges every positive (negative) nearby orbit. We…

Dynamical Systems · Mathematics 2007-05-23 C. M. Carballo , C. A. Morales

In this paper, we study the singularities of a general hyperplane section $H$ of a three-dimensional quasi-projective variety $X$ over an algebraically closed field of characteristic $p>0$. We prove that if $X$ has only canonical…

Algebraic Geometry · Mathematics 2017-03-03 Kenta Sato , Shunsuke Takagi

From a recent perspective, the structure of a 3-connected graph is studied in this paper. It stipulates the minimum dominating set of a 3-connected graph. Also, we count the number of structures, as a consequence, the upper bound is…

Combinatorics · Mathematics 2019-10-02 Misa Nakanishi

A rigorous mathematical proof is given of a class of vector identities that provide a way to separate an arbitrary vector field (over a linear space) into the sum of a radial (i.e., pointing toward the radial unit vector) vector field,…

Classical Physics · Physics 2007-05-23 M. Bornatici , O. Maj

We establish a near dichotomy between randomness and structure for the point counts of arbitrary projective cubic threefolds over finite fields. Certain "special" subvarieties, not unlike those in the Manin conjectures, dominate. We also…

Number Theory · Mathematics 2023-04-25 Victor Y. Wang

Let $G$ be a simple graph of order $n$. A dominating set of $G$ is a set $S$ of vertices of $G$ so that every vertex of $G$ is either in $S$ or adjacent to a vertex in $S$. The domination polynomial of $G$ is the polynomial…

Combinatorics · Mathematics 2009-08-25 Saieed Akbari , Mohammad Reza Oboudi

In this paper we consider the complex vector spaces of holomorphic cross-sections of homogeneous holomorphic vector bundles over elliptic adjoint orbits, and provide a sufficient condition for the vector spaces to be finite dimensional in…

Differential Geometry · Mathematics 2019-01-24 Nobutaka Boumuki

We propose a new network reliability measure for some particular kind of service networks, which we refer to as domination reliability. We relate this new reliability measure to the domination polynomial of a graph and the coverage…

Combinatorics · Mathematics 2025-12-03 Klaus Dohmen , Peter Tittmann

We consider a DA-type surgery of the famous Lorenz attractor in dimension 4. This kind of surgeries have been firstly used by Smale [S] and Ma\~n\'e [M1] to give important examples in the study of partially hyperbolic systems. Our…

Dynamical Systems · Mathematics 2023-12-19 Ming Li , Fan Yang , Jiagang Yang , Rusong Zheng

It is shown that every hyperbolic rigid polynomial domain in C^3 of finite type, with abelian automorphism group is equivalent to a domain that is balanaced with respect to some weight.

Complex Variables · Mathematics 2011-09-28 G. P. Balakumar

We give a valuation theoretic characterization for a real closed field to be recursively saturated. Our result extends the characterization of Harnik and Ressayre \cite{hr} for a divisible ordered abelian group to be recursively saturated.

Logic · Mathematics 2015-10-27 Paola D'Aquino , Salma Kuhlmann , Karen Lange

In this work, we show that an autonomous dynamical system defined by a nonvanishing vector field on an orientable three-dimensional manifold is globally bi-Hamiltonian if and only if the first Chern class of the normal bundle of the given…

Symplectic Geometry · Mathematics 2017-07-17 Melike Işim Efe , Ender Abadoğlu

Given a recollement of three proper dg algebras over a noetherian commutative ring, e.g. three algebras which are finitely generated over the base ring, which extends one step downwards, it is shown that there is a short exact sequence of…

Representation Theory · Mathematics 2023-07-06 Haibo Jin , Dong Yang , Guodong Zhou

In this short paper, we establish relations between the domination number $\gamma$, the total domination number $\gamma_t$, and the connected domination number $\gamma_c$ of a graph. In particular, we prove upper and lower bounds for…

Combinatorics · Mathematics 2026-02-17 Dickson Y. B. Annor

We provide convex body domination results for the generalized vector-valued commutator of those operators that admit specific forms of convex body domination themselves. We also prove some strong type estimates and other consequences of…

Functional Analysis · Mathematics 2026-04-14 Joshua Isralowitz , Israel P. Rivera-Ríos , Francisco Sáez-Rivas

In this paper we define a class of combinatorial structures the instances of which can each be thought of as a model of directed hypergraphs in some way. Each of these models is uniform in that all edges have the same internal structure,…

Combinatorics · Mathematics 2016-07-19 Alex Cameron

We study ordinary differential equations in the complex domain given by meromorphic vector fields on K\"ahler compact complex surfaces. We prove that if such an equation has a maximal single valued solution with Zariski-dense image (in…

Complex Variables · Mathematics 2019-08-06 Adolfo Guillot

We show that a superposition of an $\varepsilon$-Bernoulli bond percolation and any everywhere percolating subgraph of $\mathbb Z^d$, $d\ge 2$, results in a connected subgraph, which after a renormalization dominates supercritical Bernoulli…

Probability · Mathematics 2015-05-25 Itai Benjamini , Vincent Tassion

It is known that volume hyperbolicity (partial hyperbolicity and uniform expansion or contraction of the volume in the extremal bundles) is a necessary condition for robust transitivity or robust chain recurrence hence for tameness. In this…

Dynamical Systems · Mathematics 2016-09-28 Christian Bonatti , Katsutoshi Shinohara