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About 928 papers for “surjectivity”

On Surjectivity Methods

Ali Habibi Mooakher · Journal of Research in Science Engineering and Technology · 2019

Let w be a pointwise semi-Cauchy class. We wish to extend the results of [33, 32] to embedded, Siegel{Sylvester, smoothly reducible lines. We show that Recent interest in elements has centered on constructing Milnor {Cardano classes. Next, unfortunately, we cannot assume that every Dedekind, semi-independent, Jordan{Perelman subgroup acting sub-canonically on a sub-unconditionally Hausdorff, globally integrable, conditionally hyper-one-to-one isometry is projective.

Cited by 0Open access

APPROXIMATION BOUNDEDNESS SURJECTIVITY

Olav Nygaard · 2001

1 The framework 9 1.1 Separability, bases and the approximation property....... 13 1.2 The completeness assumption................... 16

Cited by 2

Integral Kirwan Surjectivity

Daniel Pomerleano, Constantin Teleman · arXiv (Cornell University) · 2024

We refine Kirwan's surjectivity and formality theorems for a Hamiltonian G-action on a compact symplectic manifold M. For a regular value of the moment map, we show that the Kirwan map is surjective and additively split after inverting the orders of stabilizers in the reduction. In particular, for a free quotient, it is surjective integrally. We generalize this to a splitting of MU-module spectra. We also give a stable version of Kirwan's equivariant formality theorem. The novel idea is to exploit the Atiyah-Bott argument in Morava K-theory, then return to bordism and cohomology.

Cited by 0Open access

The Surjectivity of Vectors

M. Lafourcade, A. Dirichlet, Z. J. Hardy · 2014

Let Ω = π(K) be arbitrary. In [10], the authors address the negativity of natural curves under the additional assumption that there exists a quasi-bounded and geometric multiply right-Galileo equation. We show that N 2 ∋ ¯v −1. Next, the goal of the present paper is to classify σ-algebraic, associative, Littlewood polytopes. This reduces the results of [10] to Ramanujan’s theorem.

Cited by 0

Surjectivity of Linkage Maps

Yuji Yoshino · Birkhäuser Boston eBooks · 2001

In this paper we give necessary and sufficient conditions for the linkage maps Φr (r = 1, 2) to be surjective onto the set of isomorphism classes of Cohen-Macaulay modules. More precisely, for a Gorenstein complete local ring R, we prove that Φ1 is surjective iff R is an integral domain, and that Φ2 is surjective iff R is a unique factorization domain.

Cited by 0

Surjectivity of an operator

Valter Šeda · Czechoslovak Mathematical Journal · 1990

A new method of proving surjectivity of an operator / in a Banach space is proposed.For this method the condition of coercivity of/in the form lim |/(x)| = oo |x|^oo plays an important role.Some results obtained by this method deal with the strict surjective maps and with the quasi-bounded operators.The application of the results to ordinary differential equations is given.1. PRELIMINARIES

Cited by 8

SURJECTIVITY OF CONVOLUTION OPERATORS

Kakehi, Tomoyuki · Kyoto University Research Information Repository (Kyoto University) · 2023

In this article, we will explain the surjectivity of convolution operators on Euclidean spaces and on noncompact symmetric spaces. We will also give an application of our main result to PDE theory. Basically, this article is a brief summary of the joint work with Jens Christensen, Fulton Gonzalez, and Jue Wang. (See [CGKl7] and [GWK21].)

Cited by 0

Some surjectivity theorems with applications

H. K. Pathak, S. N. Mishra · Archivum Mathematicum · 2013

In this paper a new class of mappings, known as locally $\lambda $-strongly $\phi $-accretive mappings, where $\lambda $ and $\phi $ have special meanings, is introduced. This class of mappings constitutes a generalization of the well-known monotone mappings, accretive mappings and strongly $\phi $-accretive mappings. Subsequently, the above notion is used to extend the results of Park and Park, Browder and Ray to locally $\lambda $-strongly $\phi $-accretive mappings by using Caristi-Kirk fixed point theorem. In the sequel, we introduce the notion of generalized directional contractor and prove a surjectivity theorem which is used to solve certain functional equations in Banach spaces.

Cited by 0Open access

On surjectivity of Hopf maps

Okamoto, Akihiko, 17695, 岡本, 亮彦 et al. · Waseda University Repository (Waseda University) · 2013

Cited by 0

Resolving complexity of matrix surjectivity

Daniël Paulusma, Jan Arne Telle · 2008

Abstract. Degree refinement matrices have tight connections to graph homomorphisms that locally, on the neighborhoods of a vertex and its image, are constrained to three types: bijective, injective or surjective. If a graph G has a homomorphism of a given type to a graph H then we say that the degree refinement matrix drm(G) of G is smaller than drm(H). This way we obtain three partial orders. Computing drm(G) is easy, so an algorithm deciding comparability of two matrices in one of these partial orders would be a heuristic for deciding if G has a homomorphism of given type to H. Both for the locally bijective and injective constraints there exists such an algorithm deciding comparability, and for the locally bijective constraint this gives a well-known heuristic for the special case of graph isomorphism. For the locally surjective constraint the existence of an algorithm deciding comparability has been posed as an open problem in [13]. We resolve this open problem by showing that it belongs to the complexity class NP.

Cited by 0

Microlocal Aspects, Surjectivity of I0*

Gabriel P. Paternain, Mikko Salo, Günther Uhlmann · Cambridge University Press eBooks · 2023

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