There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Fractional Differential Equations

Theory of fuzzy integrals and its applications

A new epidemic model refereed to with the acronym SIMVW is proposed, where S, I, M, V and W are, respectively, the subsequent subpopulations: susceptible human, infectious human, susceptible vector, infectious vector and vaccinated human. The equilibrium steady states are examined and a set of typical endemic and disease.-free situations are tested for a malaria case study in the absence and presence of vaccination efforts.

https://dpi-proceedings.com/index.php/dtcse/article/download/33627/32214

Numerical Results on an SIMVW Epidemic Model with Feedback Vaccination

We define the notion of C * -algebra-valued fuzzy metric spaces and we study the topology induced by these spaces.

https://www.mdpi.com/2227-7390/8/6/905/pdf

On the Topology Induced by C*-Algebra-Valued Fuzzy Metric Spaces

We connect the iteration process with the class of generalized - nonexpansive mappings. Under some appropriate assumption, we establish some weak and strong convergence theorems in Banach spaces. To show the numerical efficiency of our established results, we provide a new example of generalized - nonexpansive mappings and show that its iteration process is more efficient than many other iterative schemes. Our results are new and extend the corresponding known results of the current literature.

/pdf/iterative-approximation-of-fixed-points-by-using-f-iteration-5935wmg5tb.pdf

Iterative Approximation of Fixed Points by Using F Iteration Process in Banach Spaces

This paper states and studies an epidemic model where the dead corpses are also infective while the asymptomatic population is also present. There are several vaccination ways including susceptible vaccination, infectious antiviral control and culling of infectious corpses.

On a new model for Ebola disease

In the setting of fuzzy metric spaces (FMSs), a global optimization problem (GOP) obtaining the distance between two subsets of an FMS is solved by a tripled fixed-point (FP) technique here. Also, fuzzy weak tripled contractions (WTCs) for that are given. This problem was known before in metric space (MS) as a proximity point problem (PPP). The result is correct for each continuous τ—norms related to the FMS. Furthermore, a non-trivial example to illustrate the main theorem is discussed.

https://www.mdpi.com/2073-8994/13/4/565/pdf

Manuel De la Sen

Papers

Numerical Results on an SIMVW Epidemic Model with Feedback Vaccination

On the Topology Induced by C*-Algebra-Valued Fuzzy Metric Spaces

Iterative Approximation of Fixed Points by Using F Iteration Process in Banach Spaces

On a new model for Ebola disease

A Weak Tripled Contraction for Solving a Fuzzy Global Optimization Problem in Fuzzy Metric Spaces