Browsing Artykuły naukowe by Title
Now showing items 1-20 of 43
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A note on the dependence of solutions on functional parameters for nonlinear sturm-liouville problems
(AGH University of Science and Technology Press, 2014)We deal with the existence and the continuous dependence of solutions on functional parameters for boundary valued problems containing the Sturm-Liouville equation. We apply these result to prove the existence of at least ... -
An integral formula for Riemannian G-structures with applications to almost Hermitian and almost contact structures
(Springer Nature, 2019)For a Riemannian G-structure, we compute the divergence of the vector field induced by the intrinsic torsion. Applying the Stokes theorem, we obtain the integral formula on a closed oriented Riemannian manifold, which we ... -
Baire Category Lower Density Operators with Borel Values
; Hejduk, Jacek
; (Springer Nature, 2023)
We prove that the lower density operator associated with the Baire category density points in the real line has Borel values of class Π<SUP>0</SUP><SUB>3</SUB> which is analogous to the measure case. We also introduce ... -
Best Proximity Point Theorem in Quasi-Pseudometric Spaces
(Hindawi, 2016)In quasi-pseudometric spaces (not necessarily sequentially complete), we continue the research on the quasi-generalized pseudodistances. We introduce the concepts of semiquasiclosed map and contraction of Nadler type with ... -
Cloning by positive maps in von Neumann algebras
Łuczak, Andrzej (Springer Basel, 2014-06-19)
We investigate cloning in the general operator algebra framework in arbitrary dimension assuming only positivity instead of strong positivity of the cloning operation, generalizing thus results obtained so far under that ... -
Cloning by positive maps in von Neumann algebras
Łuczak, Andrzej (Springer Basel, 2014-06-19)
We investigate cloning in the general operator algebra framework in arbitrary dimension assuming only positivity instead of strong positivity of the cloning operation, generalizing thus results obtained so far under that ... -
Comparison of ultrasound image filtering methods by means of multivariable kurtosis
Zajączkowski, Paweł; (International Society for Stereology & Image Analysis, 2017)
Comparison of the quality of despeckled US medical images is complicated because there is no image of a human body that would be free of speckles and could serve as a reference. A number of various image metrics are ... -
Construction of a Mathematical Model of Multiobjective Optimization on Permutations
Koliechkina, Liudmyla; ; (International Research and Training Center for Information Technologies and Systems of NAS and MES Ukraine, 2020)
The article is devoted to the problem of constructing and solving mathematical models of applied problems as multiobjective problems on combinatorial configurations. This question is actual branch because any task of optimal ... -
Cytokine profiling in exhaled breath condensate after exercise challenge in asthmatic children with post-exercise symptoms
(Termedia Publishing House, 2016)Introduction: Markers of exhaled breath condensate (EBC) correlate with lung function impairment, airway remodeling and different aspects of the disease such as exercise-induced bronchoconstriction (EIB). Aim of the study ... -
Duality for multiobjective variational control problems with (Φ,ρ)-invexity
(Springer, 2013-11-29)In this paper, Mond-Weir and Wolfe type duals for multiobjective variational control problems are formulated. Several duality theorems are established relating efficient solutions of the primal and dual multiobjective ... -
Dynamic Processes, Fixed Points, Endpoints, Asymmetric Structures, and Investigations Related to Caristi, Nadler, and Banach in Uniform Spaces
(Hindawi Publishing Corporation, 2015)In uniform spaces (...) with symmetric structures determined by the D-families of pseudometrics which define uniformity in these spaces, the new symmetric and asymmetric structures determined by the J-families of generalized ... -
Dynamic programming approach to structural optimization problem – numerical algorithm
Fulmański, Piotr; Nowakowski, Andrzej ; (AGH University of Science and Technology Press, 2014)
In this paper a new shape optimization algorithm is presented. As a model application we consider state problems related to fluid mechanics, namely the Navier-Stokes equations for viscous incompressible fluids. The general ... -
Entropy of Quantum Measurement
(MDPI, 2015-03-12)A notion of entropy of a normal state on a finite von Neumann algebra in Segal’s sense is considered, and its superadditivity is proven together with a necessary and sufficient condition for its additivity. Bounds on the ... -
Fixed points of dynamic processes of set-valued F-contractions and application to functional equations
(Springer International Publishing, 2015-02-11)The article is a continuation of the investigations concerning F-contractions which have been recently introduced in [Wardowski in Fixed Point Theory Appl. 2012:94,2012]. The authors extend the concept of F-contractive ... -
Generalized gradients on Lie algebroids
(Springer Netherlands, 2013)Generalized O(n) -gradients for connections on Lie algebroids are derived. -
Hausdorff quasi-distances, periodic and fixed points for Nadler type set-valued contractions in quasi-gauge spaces
(Springer, 2014-12-05)In a quasi-gauge space (X,P) with quasi-gauge , using the left (right) -families of generalized quasi-pseudodistances on X (-families on X generalize quasi-gauge ), the left (right) quasi-distances DL−Jη ( DR−Jη) of Hausdorff ... -
Linear combination of projections in von Neumann factors
; Paszkiewicz, Adam (Springer Nature, 2020)
It is shown that any self-adjoint operator in a finite discrete or infinite von Neumann factor can be written as a real linear combination of 4 projections. On the other hand, in any type II1 algebra and in any type II∞ ... -
Milnor Numbers of Deformations of Semi-Quasi-Homogeneous Plane Curve Singularities
Michalska, Maria; Walewska, Justyna (Springer Nature, 2019)
The aim of this paper is to show the possible Milnor numbers of deformations of semi-quasi-homogeneous isolated plane curve singularity f. Assuming that f is irreducible, one can write f=∑qα+pβ ≥ pqcαβ xαyβ where cp0c0q≠0, ... -
Module of geodesic foliation on the flat torus
(Wydawnictwo Politechniki Częstochowskiej, 2014)We study properties of geodesic foliations on the flat, n-dimensional torus. Using the isomorphism of the Hodge star, we obtain some facts concerning compact totally geodesic surfaces (which are the leaves of geodesic ... -
Monotone iterative procedure and systems of a finite number of nonlinear fractional differential equations
(Springer International Publishing, 2015-06-03)The aim of the paper is to present a nontrivial and natural extension of the comparison result and the monotone iterative procedure based on upper and lower solutions, which were recently established in (Wang et al. in ...