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Mathematics, Volume 8, Issue 2

February 2020 - 156 articles

Cover Story: Stochastic models for oscillatory phenomena can be obtained from deterministic ones, e.g., the oscillabolastic model. Following modified ODEs, diffusion processes for oscillabolastic growth are considered. Parameter estimation requires numerical methods, and strategies for initial solutions are proposed, taking advantage of some properties. View this paper.
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Articles (156)

  • Article
  • Open Access
14 Citations
2,972 Views
14 Pages

24 February 2020

With improved measurement and modelling technology, variability has emerged as an essential feature in non-equilibrium processes. While traditionally, mean values and variance have been heavily used, they are not appropriate in describing extreme eve...

  • Article
  • Open Access
18 Citations
3,246 Views
22 Pages

24 February 2020

The identification of partially observed continuous nonlinear systems from noisy and incomplete data series is an actual problem in many branches of science, for example, biology, chemistry, physics, and others. Two stages are needed to reconstruct a...

  • Article
  • Open Access
7 Citations
2,527 Views
14 Pages

24 February 2020

The capacity is a powerful tool with exponential coefficients to represent the interaction phenomenon among decision criteria, but its random generation becomes a tough issue for dealing with the monotonicity with all inclusion subsets as well as the...

  • Article
  • Open Access
21 Citations
8,712 Views
20 Pages

22 February 2020

The Max-cut problem is a well-known combinatorial optimization problem, which has many real-world applications. However, the problem has been proven to be non-deterministic polynomial-hard (NP-hard), which means that exact solution algorithms are not...

  • Article
  • Open Access
3 Citations
2,255 Views
14 Pages

21 February 2020

In the present paper, Kantorovich type λ -Bernstein operators via (p, q)-calculus are constructed, and the first and second moments and central moments of these operators are estimated in order to achieve our main results. An A-statistica...

  • Article
  • Open Access
3 Citations
2,657 Views
12 Pages

Common Fixed Point and Endpoint Theorems for a Countable Family of Multi-Valued Mappings

  • Hüseyin Işık,
  • Babak Mohammadi,
  • Choonkil Park and
  • Vahid Parvaneh

21 February 2020

We prove some common fixed point and endpoint theorems for a countable infinite family of multi-valued mappings, as well as Allahyari et al. (2015) did for self-mappings. An example and an application to a system of integral equations are given to sh...

  • Article
  • Open Access
7 Citations
3,207 Views
14 Pages

The Effect of a Linear Tuning between the Antigenic Stimulations of CD4+ T Cells and CD4+ Tregs

  • Aliyu A. Yusuf,
  • Isabel P. Figueiredo,
  • Atefeh Afsar,
  • Nigel J. Burroughs,
  • Alberto A. Pinto and
  • Bruno M. P. M. Oliveira

21 February 2020

We study the equilibria of an Ordinary Differencial Equation (ODE) system where CD4 + effector or helper T cells and Regulatory T cells (Tregs) are present. T cells trigger an immune response in the presence of their specific antigen. Regulat...

  • Article
  • Open Access
4 Citations
2,697 Views
9 Pages

21 February 2020

We obtain the Wang-type integral inequalities for compact minimal hypersurfaces in the unit sphere S 2 n + 1 with Sasakian structure and use these inequalities to find two characterizations of minimal Clifford hypersurfaces in the unit sphe...

  • Article
  • Open Access
30 Citations
4,025 Views
15 Pages

Some Fixed Point Theorems of Ćirić Type in Fuzzy Metric Spaces

  • Dušan Rakić,
  • Tatjana Došenović,
  • Zoran D. Mitrović,
  • Manuel de la Sen and
  • Stojan Radenović

21 February 2020

The main aim of the current paper is the investigation of possibilities for improvements and generalizations contractive condition of Ćirić in the fuzzy metric spaces. Various versions of fuzzy contractive conditions are studied in two directions. Fi...

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Mathematics - ISSN 2227-7390