2005, ISBN 1574446290, 398

Book

Discrete Applied Mathematics, ISSN 0166-218X, 09/2013, Volume 161, Issue 13-14, pp. 2075 - 2078

Let be a graph with order and let such that for all . We say that has all fractional -factors if has a fractional -factor for every such that for every . Let...

Fractional factor | All fractional factors | MATHEMATICS, APPLIED | (G,F)-FACTORS | GRAPHS | Integers | Lower bounds | Theorems | Existence theorems | Mathematical analysis | Graphs | Unions

Fractional factor | All fractional factors | MATHEMATICS, APPLIED | (G,F)-FACTORS | GRAPHS | Integers | Lower bounds | Theorems | Existence theorems | Mathematical analysis | Graphs | Unions

Journal Article

Journal of Mathematical Physics, ISSN 0022-2488, 06/2016, Volume 57, Issue 6, p. 63501

Existence of generic sets of self-adjoint operators, related to correlation dimensions of spectral measures, is investigated in separable Hilbert spaces....

SINGULAR CONTINUOUS-SPECTRUM | QUANTUM DYNAMICS | TRANSPORT | POWER-LAW SUBORDINACY | PHYSICS, MATHEMATICAL | SCHRODINGER-OPERATORS | Operators (mathematics) | Fourier transforms | Theorems | Existence theorems | Correlation analysis | Spectra | Hilbert space

SINGULAR CONTINUOUS-SPECTRUM | QUANTUM DYNAMICS | TRANSPORT | POWER-LAW SUBORDINACY | PHYSICS, MATHEMATICAL | SCHRODINGER-OPERATORS | Operators (mathematics) | Fourier transforms | Theorems | Existence theorems | Correlation analysis | Spectra | Hilbert space

Journal Article

1950, Annals of mathematics studies, Volume no. 23, 228

Book

Ukrainian Mathematical Journal, ISSN 0041-5995, 4/2018, Volume 69, Issue 11, pp. 1784 - 1804

We consider a relatively new hybrid generalized F-contraction involving a pair of mappings and use this contraction to prove a common fixed-point theorem for a...

Geometry | Algebra | Analysis | Mathematics, general | Mathematics | Applications of Mathematics | Statistics, general | MATHEMATICS | MATHEMATICS, APPLIED | MAPPINGS | FUNCTIONAL-EQUATIONS | COINCIDENCE

Geometry | Algebra | Analysis | Mathematics, general | Mathematics | Applications of Mathematics | Statistics, general | MATHEMATICS | MATHEMATICS, APPLIED | MAPPINGS | FUNCTIONAL-EQUATIONS | COINCIDENCE

Journal Article

Journal of Chemical Physics, ISSN 0021-9606, 09/2015, Volume 143, Issue 11, p. 114112

A useful definition of orbital degeneracy-form-degeneracy-is introduced, which is distinct from the usual energy-degeneracy: Two canonical spatial orbitals are...

HARTREE-FOCK METHOD | SCF METHOD | ELECTRON-GAS | MOLECULAR SYSTEMS | SPIN-DENSITY WAVES | STABILITY | TRANSPOLYACETYLENE | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ORBITALS | STATE | Theorems | Energy spectra | Existence theorems | Orbital stability | Molecular orbitals | Wave functions | Jahn-Teller effect | Spin density waves | Electrons | Covalent bonds

HARTREE-FOCK METHOD | SCF METHOD | ELECTRON-GAS | MOLECULAR SYSTEMS | SPIN-DENSITY WAVES | STABILITY | TRANSPOLYACETYLENE | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ORBITALS | STATE | Theorems | Energy spectra | Existence theorems | Orbital stability | Molecular orbitals | Wave functions | Jahn-Teller effect | Spin density waves | Electrons | Covalent bonds

Journal Article

Journal of High Energy Physics, ISSN 1029-8479, 10/2019, Volume 2019, Issue 10, pp. 1 - 20

We consider the consequences of the dual gravitational charges for the phase space of radiating modes, and find that they imply a new soft NUT theorem. In...

Space-Time Symmetries | Classical Theories of Gravity | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | WAVES | GENERAL RELATIVITY | PHYSICS, PARTICLES & FIELDS | Astronomy | Gravity | Boundary conditions | Theorems | Gravitation | Existence theorems

Space-Time Symmetries | Classical Theories of Gravity | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | WAVES | GENERAL RELATIVITY | PHYSICS, PARTICLES & FIELDS | Astronomy | Gravity | Boundary conditions | Theorems | Gravitation | Existence theorems

Journal Article

1968, Harvard papers in theoretical geography, Volume 21, vi, [60 leaves]

Book

JOURNAL OF INEQUALITIES AND APPLICATIONS, ISSN 1029-242X, 02/2019, Volume 2019, Issue 1, pp. 1 - 15

Let Y be a uniformly convex multi-Banach space which has not a Frechet differentiable norm. We use the technique of product net to obtain the nonlinear ergodic...

Kadec-Klee property | AMENABLE SEMIGROUPS | EXISTENCE | MATHEMATICS | RETRACTIONS | MATHEMATICS, APPLIED | Reversible semi-groups | NONEXPANSIVE-MAPPINGS | Asymptotically nonexpansive mapping | Almost orbit | Uniformly convex multi-Banach space | ORBITS | Theorems | Banach spaces | Banach space | Convergence | Ergodic processes | Kadec–Klee property

Kadec-Klee property | AMENABLE SEMIGROUPS | EXISTENCE | MATHEMATICS | RETRACTIONS | MATHEMATICS, APPLIED | Reversible semi-groups | NONEXPANSIVE-MAPPINGS | Asymptotically nonexpansive mapping | Almost orbit | Uniformly convex multi-Banach space | ORBITS | Theorems | Banach spaces | Banach space | Convergence | Ergodic processes | Kadec–Klee property

Journal Article

Applied Mathematics and Computation, ISSN 0096-3003, 09/2016, Volume 287-288, pp. 74 - 82

In this paper, we introduce the concept of monotone -nonexpansive mappings in an ordered Banach space with the partial order ≤, which contains monotone...

The Mann iteration | Monotone α-nonexpansive mapping | Ordered Banach space | Fixed point | Convergence | STRICT PSEUDO-CONTRACTIONS | WEAK | MATHEMATICS, APPLIED | BANACH-SPACES | Monotone alpha-nonexpansive mapping | FAMILY | Theorems | Computation | Existence theorems | Mathematical models | Mapping | Banach space | Iterative methods

The Mann iteration | Monotone α-nonexpansive mapping | Ordered Banach space | Fixed point | Convergence | STRICT PSEUDO-CONTRACTIONS | WEAK | MATHEMATICS, APPLIED | BANACH-SPACES | Monotone alpha-nonexpansive mapping | FAMILY | Theorems | Computation | Existence theorems | Mathematical models | Mapping | Banach space | Iterative methods

Journal Article

1934, Colloquium publications (American Mathematical Society), Volume 3, 107

Book

Journal of Approximation Theory, ISSN 0021-9045, 2011, Volume 163, Issue 11, pp. 1772 - 1781

Let us assume that and are non-empty subsets of a metric space. In view of the fact that a non-self mapping does not necessarily have a fixed point, it is of...

Best proximity point | Proximal contraction | Optimal approximate solution | Fixed point | EXISTENCE | APPROXIMATION | MULTIFUNCTIONS | EXTENSIONS | MATHEMATICS | QUASI-ASYMPTOTIC CONTRACTIONS | EQUILIBRIUM PAIRS | CONVERGENCE | COMMON

Best proximity point | Proximal contraction | Optimal approximate solution | Fixed point | EXISTENCE | APPROXIMATION | MULTIFUNCTIONS | EXTENSIONS | MATHEMATICS | QUASI-ASYMPTOTIC CONTRACTIONS | EQUILIBRIUM PAIRS | CONVERGENCE | COMMON

Journal Article

Bulletin of the Malaysian Mathematical Sciences Society, ISSN 0126-6705, 7/2019, Volume 42, Issue 4, pp. 1433 - 1449

The fixed-point theory and its applications to various areas of science are well known. In this paper, we present some existence and uniqueness theorems for...

The existence theorem | 47H10 | The uniqueness theorem | 37E10 | Mathematics, general | Mathematics | Applications of Mathematics | Fixed circle | 54H25 | 55M20 | MATHEMATICS | Mathematics - Metric Geometry

The existence theorem | 47H10 | The uniqueness theorem | 37E10 | Mathematics, general | Mathematics | Applications of Mathematics | Fixed circle | 54H25 | 55M20 | MATHEMATICS | Mathematics - Metric Geometry

Journal Article

Advances in Mathematics, ISSN 0001-8708, 04/2015, Volume 274, pp. 167 - 198

Let be the upper half Euclidean space and let be any real number between 0 and 2. Consider the following Dirichlet problem involving the fractional Laplacian:...

Liouville theorems | Method of moving planes in integral forms | Semi-linear elliptic equation | Dirichlet problem | Non-existence | Green's function | Integral equation | The fractional Laplacian | Half space | Monotonicity | Symmetry | The fractional laplacian | SYSTEM | INTEGRAL-EQUATION | MATHEMATICS | RADIAL SYMMETRY | HARMONIC DIRICHLET PROBLEMS | REGULARITY | WOLFF TYPE | Jewish schools

Liouville theorems | Method of moving planes in integral forms | Semi-linear elliptic equation | Dirichlet problem | Non-existence | Green's function | Integral equation | The fractional Laplacian | Half space | Monotonicity | Symmetry | The fractional laplacian | SYSTEM | INTEGRAL-EQUATION | MATHEMATICS | RADIAL SYMMETRY | HARMONIC DIRICHLET PROBLEMS | REGULARITY | WOLFF TYPE | Jewish schools

Journal Article

Journal of Fixed Point Theory and Applications, ISSN 1661-7738, 06/2017, Volume 19, Issue 2, pp. 1251 - 1267

In this paper, we establish common fixed point theorems in an ordered complete metric space using distance functions. Our main result, improves and extends the...

Ordinary differential equations | Weak contraction | Ordered metric spaces | Integral equations | Fixed point | EXISTENCE | MATHEMATICS | MATHEMATICS, APPLIED | SETS | MAPPINGS | UNIQUENESS | Differential equations

Ordinary differential equations | Weak contraction | Ordered metric spaces | Integral equations | Fixed point | EXISTENCE | MATHEMATICS | MATHEMATICS, APPLIED | SETS | MAPPINGS | UNIQUENESS | Differential equations

Journal Article

Nonlinear Analysis, ISSN 0362-546X, 2011, Volume 74, Issue 15, pp. 4889 - 4897

In this paper, we introduce the concept of tripled fixed point for nonlinear mappings in partially ordered complete metric spaces and obtain existence, and...

Tripled fixed point | Metric space | Existence and uniqueness | Contractive type operator | MATHEMATICS | MATHEMATICS, APPLIED | APPROXIMATION | NONLINEAR CONTRACTIONS | Uniqueness theorems | Theorems | Fixed points (mathematics) | Existence theorems | Nonlinearity | Mapping

Tripled fixed point | Metric space | Existence and uniqueness | Contractive type operator | MATHEMATICS | MATHEMATICS, APPLIED | APPROXIMATION | NONLINEAR CONTRACTIONS | Uniqueness theorems | Theorems | Fixed points (mathematics) | Existence theorems | Nonlinearity | Mapping

Journal Article

Advances in Nonlinear Analysis, ISSN 2191-9496, 08/2017, Volume 8, Issue 1, pp. 725 - 742

In this paper we explore Liouville-type theorems to solutions of PDEs involving the ϕ-Laplace operator in the setting of Orlicz–Sobolev spaces. Our results...

35J75 | Orlicz–Sobolev spaces | 35J62 | Liouville-type theorems | 35J60 | 35J70 | Liouville-type theorems, φ-Laplacian, Orlicz-Sobolev spaces | EXISTENCE | MATHEMATICS | MATHEMATICS, APPLIED | REGULARITY | phi-Laplacian | LINEAR ELLIPTIC-EQUATIONS | POSITIVE SOLUTIONS | Orlicz-Sobolev spaces

35J75 | Orlicz–Sobolev spaces | 35J62 | Liouville-type theorems | 35J60 | 35J70 | Liouville-type theorems, φ-Laplacian, Orlicz-Sobolev spaces | EXISTENCE | MATHEMATICS | MATHEMATICS, APPLIED | REGULARITY | phi-Laplacian | LINEAR ELLIPTIC-EQUATIONS | POSITIVE SOLUTIONS | Orlicz-Sobolev spaces

Journal Article

Fixed Point Theory and Applications, ISSN 1687-1820, 12/2010, Volume 2010, Issue 1, pp. 1 - 17

We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations. Also we...

Mathematical and Computational Biology | Analysis | Mathematics, general | Mathematics | Applications of Mathematics | Topology | Differential Geometry | MATHEMATICS | MATHEMATICS, APPLIED | GENERALIZED CONTRACTIONS | WEAKLY COMPATIBLE MAPPINGS | SETS | IMPLICIT RELATION | ORDINARY DIFFERENTIAL-EQUATIONS | Fixed point theory | Metric spaces | Research | Existence theorems | Operator theory | Studies | Mathematical models | Algorithms | Integral equations

Mathematical and Computational Biology | Analysis | Mathematics, general | Mathematics | Applications of Mathematics | Topology | Differential Geometry | MATHEMATICS | MATHEMATICS, APPLIED | GENERALIZED CONTRACTIONS | WEAKLY COMPATIBLE MAPPINGS | SETS | IMPLICIT RELATION | ORDINARY DIFFERENTIAL-EQUATIONS | Fixed point theory | Metric spaces | Research | Existence theorems | Operator theory | Studies | Mathematical models | Algorithms | Integral equations

Journal Article

Journal of Mathematical Physics, ISSN 0022-2488, 06/2019, Volume 60, Issue 6, p. 61506

This paper is devoted to the nonexistence of nontrivial weak solutions for the Kirchhoff equation −a+b∫RN|∇u|2 dxΔu=|x|qf(u) in RN. We prove that the equation...

EXISTENCE | MULTIPLE SOLUTIONS | P-LAPLACE EQUATIONS | CRITICAL EXPONENT | POSITIVE SOLUTIONS | STABLE-SOLUTIONS | GROUND-STATE SOLUTIONS | PHYSICS, MATHEMATICAL | UNIQUENESS

EXISTENCE | MULTIPLE SOLUTIONS | P-LAPLACE EQUATIONS | CRITICAL EXPONENT | POSITIVE SOLUTIONS | STABLE-SOLUTIONS | GROUND-STATE SOLUTIONS | PHYSICS, MATHEMATICAL | UNIQUENESS

Journal Article

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