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Materias / palabras clave: Mathematics; Number theory; Set theory; Matemáticas; Fundamentos; Teoría de los números; Teoría de conjuntos

Para esta reimpresión se corrigieron los errores, tanto tipográficos como de concordancia en las referencias y en la notación. Se aclararon algunos conceptos, se adicionaron algunas notas históricas, se justificaron ...

Materias / palabras clave: Matemática; Colombia; Mathematics; Teoría numérica; Number theory

Materias / palabras clave: number theory, discrete mathematics, arithmetic functions, combinatorics, diophantine equations, fibonacci; Science: Mathematics

Abstract The increasing penetration of photovoltaic distributed generation (PV-DG) in Radial Distribution Systems (RDSs) plays a vital role in achieving sustainable energy transition objectives; however, the inherent unc...

This paper presents an efficient method for solving fully fuzzy linear fractional programming (FFLFP) problems using pentagonal fuzzy numbers (PFNs) and the decomposition method. In real-world decision-making, uncertaint...

It was aimed to evaluate a variety of conventional and emerging CO2-selective adsorbents, considering their use in a five-step VSA (Vacuum Swing Adsorption) system for flue gas capture. In most works, porous materials sy...

Abstract Based on the existing results, this paper systematically reviews and extends the calculus theory of S $\mathcal{S}$ -linearly correlated fuzzy number-valued functions on time scales. As an application of the the...

BackgroundA growing number of couples worldwide are seeking in vitro fertilization-embryo transfer (IVF-ET) to achieve pregnancy. However, failed IVF-ET treatment inflicts multidimensional stress on patients, involving i...

Reducing radiation damage is becoming a crucial factor in the development of future electron microscopes. The concept of interaction-free imaging utilizing a Mach–Zehnder interferometer has been proposed originally in....

The concept of individuality in quantum mechanics shows radical differences from the concept of individuality in classical physics, as E. Schrödinger pointed out in the early steps of the theory. Regarding this fact, so...

Effective-medium approaches, such as the coherent potential approximation, are commonly used to describe the rigidity transition of disordered elastic networks. While successful in capturing the universal critical behavi...

A contemporary theory holds that mathematical concepts are stored in the long-term memory of mathematicians. This perspective also proposes that the brain has evolved to possess basic “representations” of space, time...

Abstract Background Modern medical education is transforming from a biomedical focus toward a holistic, patient-centered paradigm that values medical humanistic qualities, such as empathy, communication skills and reflec...

Abstract This paper initiates the systematic study of thermal field theory for generic equilibrium density matrices, which feature arbitrary values not only of temperature and chemical potentials, but also of average ang...

Reverse logistics management has been the subject of scientific and practical attention for a few decades now. An additional interest for this topic has arisen during the last decade, due to a growing number of busines...

In the DEM simulation of mechanical response of methane hydrate or weathered rock, the real shape and size of inter-particle bond significantly affect the macro-mechanical properties of the materials, therefore it is nec...

We report the design of a high-throughput gradient hyperbolic lenslet built with real-life materials and capable of focusing a beam into a deep sub-wavelength spot of λ/23. This efficient design is achieved through high...

Prospective elementary teachers (PET) are required to have sufficient mathematical and didactic knowledge about fractions, but many of them have difficulties explaining various concepts of fractions to students. Given th...

The microhydration of rock salt (NaCl) molecules was investigated theoretically by density‐functional theory and force field calculations and experimentally by high‐resolution Penning ionization electron spectroscopy...

A novel full-atom multiscale method, combining different computational approaches and aimed to describe diffusion of multiple ions in anion exchange membranes (AEM), is presented. The method is used to evaluate diffusion...

We describe O(n) time algorithms for finding the minimum weighted dominating induced matching of chordal, dually chordal, biconvex, and claw-free graphs. For the first three classes, we prove tight O(n) bounds on the max...

The theory of hermeneutical injustice analyzes the wrongs suffered due to deficiencies in the shared interpretive resources of a society. A hermeneutical injustice is diagnosed when individuals of a social type are persi...