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Symmetry, Volume 16, Issue 8

August 2024 - 157 articles

Cover Story: The measurements of branching fractions of semileptonic $B$ mesons decay into $D$-mesons, with $\tau$ lepton in the final state, normalized to the light leptons case, exceeding various Standard Model predictions. These tensions, while not yet significant, suggest that the coupling to $\tau$ leptons is stronger than predicted, pointing to a violation of the lepton universality.
This review covers the theory of semileptonic b-hadron decays, experimental techniques, and the latest results and their implications. View this paper
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Articles (157)

  • Article
  • Open Access
1,772 Views
30 Pages

The Effect of Multiple Additional Sampling with Multi-Fidelity, Multi-Objective Efficient Global Optimization Applied to an Airfoil Design

  • Tharathep Phiboon,
  • Auraluck Pichitkul,
  • Suradet Tantrairatn,
  • Sujin Bureerat,
  • Masahiro Kanazaki and
  • Atthaphon Ariyarit

22 August 2024

The multiple additional sampling point method has become popular for use in Efficient Global Optimization (EGO) to obtain aerodynamically shaped designs in recent years. It is a challenging task to study the influence of adding multi-sampling points,...

  • Article
  • Open Access
1,730 Views
18 Pages

22 August 2024

In this paper, we give closed-form expressions of the p-Frobenius number for the triple of the generalized star numbers an(n−1)+1 for an integer a≥4. When a=6, it is reduced to the famous star number. For the set of given positive integers {...

  • Article
  • Open Access
9 Citations
1,564 Views
13 Pages

Multistability, Chaos, and Synchronization in Novel Symmetric Difference Equation

  • Othman Abdullah Almatroud,
  • Ma’mon Abu Hammad,
  • Amer Dababneh,
  • Louiza Diabi,
  • Adel Ouannas,
  • Amina Aicha Khennaoui and
  • Saleh Alshammari

22 August 2024

This paper presents a new third-order symmetric difference equation transformed into a 3D discrete symmetric map. The nonlinear dynamics and symmetry of the proposed map are analyzed with two initial conditions for exploring the sensitivity of the ma...

  • Article
  • Open Access
1 Citations
1,733 Views
12 Pages

Extending Ramsey Numbers for Connected Graphs of Size 3

  • Emma Jent,
  • Sawyer Osborn and
  • Ping Zhang

22 August 2024

It is well known that the famous Ramsey number R(K3,K3)=6. That is, the minimum positive integer n for which every red-blue coloring of the edges of the complete graph Kn results in a monochromatic triangle K3 is 6. It is also known that every red-bl...

  • Article
  • Open Access
8 Citations
2,110 Views
20 Pages

22 August 2024

This paper introduces a new algorithm that combines the forward–backward splitting algorithms with a double inertial technique, utilizing the previous three iterations. The weak convergence theorem is established under certain mild conditions i...

  • Article
  • Open Access
2 Citations
2,374 Views
16 Pages

22 August 2024

The hypervapotron structure was considered to be a feasible configuration to meet the high heat-dissipating requirement of divertors in nuclear fusion devices. In this work, symmetric CuCrZr-based transverse microchannels (TMHC) and longitudinal micr...

  • Article
  • Open Access
3 Citations
1,749 Views
13 Pages

22 August 2024

In this paper, we investigate new fixed point theorems for generalized Meir–Keeler type nonlinear mappings satisfying the condition (DH). As applications, we obtain many new fixed point theorems which generalize and improve several results avai...

  • Article
  • Open Access
2,325 Views
10 Pages

Sex-Based Differences in Pressure Pain Thresholds of Myofascial Trigger Points in Cervical and Cranial Muscles in Tension-Type Headache: A Cross-Sectional Study

  • Sofía Monti-Ballano,
  • María Orosia Lucha-López,
  • César Hidalgo-García,
  • Loreto Ferrández-Laliena,
  • Lucía Vicente-Pina,
  • Rocío Sánchez-Rodríguez,
  • Héctor José Tricás-Vidal and
  • José Miguel Tricás-Moreno

21 August 2024

Background: Tension-type headache (TTH) is the most prevalent primary headache. Pressure pain thresholds (PPTs) reflect the pressure pain sensitivity of the tissues. Women with TTH have showed greater pressure hypersensitivity in some muscles compare...

  • Article
  • Open Access
3 Citations
2,673 Views
27 Pages

21 August 2024

Sustainability in transportation is vital for lessening environmental effects and ensuring the long-term viability of the transportation industry. The aviation sector, a significant player in sustainable transport, has encountered obstacles in reduci...

  • Article
  • Open Access
3 Citations
1,969 Views
31 Pages

21 August 2024

Nonlinear distinct models have wide applications in various fields of science and engineering. The present research uses the mapping and generalized Riccati equation mapping methods to address the exact solutions for the nonlinear Klein–Gordon...

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Symmetry - ISSN 2073-8994