Results 51 to 60 of about 10,610,696 (276)

Complex Krawtchouk and Hahn Polynomial Operators for Localized and Numerically Stable Discrete Image Enhancement

open access: yesMathematics
The Krawtchouk and Hahn families are discrete orthogonal polynomials defined on the integer pixel grid, yet as polynomials, they are entire functions of a complex variable.
Hasan Bayram   +2 more
doaj   +1 more source

Minkowski Dimension and Explicit Tube Formulas for p-Adic Fractal Strings

open access: yesFractal and Fractional, 2018
The theory of complex dimensions describes the oscillations in the geometry (spectra and dynamics) of fractal strings. Such geometric oscillations can be seen most clearly in the explicit volume formula for the tubular neighborhoods of a p-adic fractal ...
Michel L. Lapidus   +2 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Application of Differential Subordinations to the Arithmetic–Geometric Means by Using an Operator

open access: yesJournal of Mathematics
This study investigates differential subordination involving arithmetic and geometric mean approaches associated with a previously introduced operator. While earlier studies considered cases where the dominant function was convex or linear, the present ...
Santosh Mandal   +4 more
doaj   +1 more source

A geometric problem in function theory

open access: yesIllinois Journal of Mathematics, 2007
The Riemann Mapping Theorem asserts that there is an analytic function in the unit disk taking its boundary values on any given simple smooth curve in the plane. A theorem of Szego says that an analytic function in the disk can have boundary values lying on prescribed circles about the origin.
Helson, Henry, Zabihi, Farhad
openaire   +2 more sources

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

On geometric properties of spherical conics and generalization of π in navigation and mapping

open access: yesGeodesy and Cartography, 2012
First, we cover the conical curves on 2-dimensional modeling sphere S 2 showing their geometric properties affecting the hyperbolic navigation. We place emphasis on the geometric definition of spherical parabola and relate it to the notions of spherical ...
Piotr Kopacz
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Convolution features of univalent meromorphic functions generated by Barnes-Mittag-Leffler function

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
The Mittag-Leffler function plays an important role in Geometric Function Theory, particularly in the study of analytic and meromorphic function classes.
Yavuz Tuğba, Altınkaya Şahsene
doaj   +1 more source

Fixed Point Property of Variable Exponent Cesàro Complex Function Space of Formal Power Series under Premodular

open access: yesJournal of Function Spaces, 2022
We have defined the variable exponent of the Cesàro complex function space of formal power series. We have constructed the prequasi-ideal generated by s-numbers and this new space of complex functions. We present some topological and geometric structures
Awad A. Bakery, Elsayed A. E. Mohamed
doaj   +1 more source

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