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  • Article
  • Open Access
6 Citations
3,862 Views
8 Pages

Conformal and Geodesic Mappings onto Some Special Spaces

  • Volodymyr Berezovski,
  • Yevhen Cherevko and
  • Lenka Rýparová

25 July 2019

In this paper, we consider conformal mappings of Riemannian spaces onto Ricci-2-symmetric Riemannian spaces and geodesic mappings of spaces with affine connections onto Ricci-2-symmetric spaces. The main equations for the mappings are obtained as a c...

(This article belongs to the Special Issue Differential Geometry of Special Mappings)
  • Feature Paper
  • Article
  • Open Access
5 Citations
4,342 Views
22 Pages

Generative Topographic Mapping of the Docking Conformational Space

  • Dragos Horvath,
  • Gilles Marcou and
  • Alexandre Varnek

18 June 2019

Following previous efforts to render the Conformational Space (CS) of flexible compounds by Generative Topographic Mapping (GTM), this polyvalent mapping technique is here adapted to the docking problem. Contact fingerprints (CF) characterize ligands...

(This article belongs to the Special Issue Molecular Docking in Drug Design 2018)
  • Article
  • Open Access
6 Citations
2,639 Views
10 Pages

15 July 2019

We consider conformal and concircular mappings of Eisenhart’s generalized Riemannian spaces. We prove conformal and concircular invariance of some tensors in Eisenhart’s generalized Riemannian spaces. We give new generalizations of symmet...

(This article belongs to the Special Issue Differential Geometry of Special Mappings)
  • Article
  • Open Access
1 Citations
486 Views
16 Pages

13 March 2026

This paper investigates biharmonic conformal immersions of surfaces into a conformally flat 3-space. We first establish a characterization of such immersions of totally umbilical surfaces into a generic 3-manifold. It is then proved that any biharmon...

(This article belongs to the Section Geometry and Topology)
  • Article
  • Open Access
467 Views
19 Pages

7 May 2026

We first study the f-biharmonicity of totally umbilical hypersurfaces in a Riemannian manifold of dimension n≥3 and prove that any totally umbilical proper f-biharmonic hypersurface without boundaries in a nonpositively curved manifold must be non...

(This article belongs to the Section Geometry and Topology)
  • Article
  • Open Access
907 Views
19 Pages

16 April 2026

In this paper, the uniform approximation of continuous functions on [0,1] by rational functions with prescribed poles and bounded multiplicities is studied. A classical theorem of Fichera characterizes density in C([0,1]) through the divergence of a...

(This article belongs to the Special Issue Symmetry in Complex Analysis Operators Theory)
  • Article
  • Open Access
9 Citations
4,906 Views
19 Pages

Conformational and Stability Analysis of SARS-CoV-2 Spike Protein Variants by Molecular Simulation

  • Gustavo E. Olivos-Ramirez,
  • Luis F. Cofas-Vargas,
  • Tobias Madl and
  • Adolfo B. Poma

We performed a comprehensive structural analysis of the conformational space of several spike (S) protein variants using molecular dynamics (MD) simulations. Specifically, we examined four well-known variants (Delta, BA.1, XBB.1.5, and JN.1) alongsid...

(This article belongs to the Section Viral Pathogens)
  • Article
  • Open Access
2 Citations
1,095 Views
15 Pages

On (m¯, m)-Conformal Mappings

  • Branislav M. Randjelović,
  • Dušan J. Simjanović,
  • Nenad O. Vesić,
  • Ivana Djurišić and
  • Branislav D. Vlahović

22 August 2025

Conformal mappings between Riemannian spaces R¯N and RN are defined by the explicit transformation of the metric tensor of the space R¯N to the metric tensor of the space RN. Geodesic mapping between these two Riemannian spaces is a transfo...

(This article belongs to the Special Issue Advancements in Applied Mathematics and Computational Physics)
  • Article
  • Open Access
399 Views
24 Pages

On (m¯,m)-Conformal Mappings and Their Geodesic Extension

  • Nenad Vesić,
  • Ivana Djurišić and
  • Dušan Simjanović

15 June 2026

Many geometrical models have been created and applied in different subjects within the sciences, such as physics, astronomy, and biology. This paper presents a generalization of the recently defined (m¯,m)-conformal mappings of Riemannian spaces...

(This article belongs to the Special Issue New Research on Differential Geometry and Its Applications)
  • Article
  • Open Access
1,942 Views
23 Pages

Bowen’s Formula for a Dynamical Solenoid

  • Andrzej Biś,
  • Wojciech Kozłowski and
  • Agnieszka Marczuk

15 November 2024

More than 50 years ago, Rufus Bowen noticed a natural relation between the ergodic theory and the dimension theory of dynamical systems. He proved a formula, known today as the Bowen’s formula, that relates the Hausdorff dimension of a conforma...

(This article belongs to the Section Statistical Physics)
  • Article
  • Open Access
4 Citations
1,294 Views
9 Pages

3 June 2024

Univalent functions with asymptotically conformal extension to the boundary form a subclass of functions with quasiconformal extension with rather special features. Such functions arise in various questions of geometric function theory and Teichm&uum...

(This article belongs to the Special Issue Advanced Approximation Techniques and Their Applications, 2nd Edition)
  • Article
  • Open Access
7 Citations
3,023 Views
19 Pages

3 October 2021

The method proposed by Inomata and his collaborators allows us to transform a damped Caldirola–Kanai oscillator with a time-dependent frequency to one with a constant frequency and no friction by redefining the time variable, obtained by solving an E...

(This article belongs to the Special Issue Symmetries in Quantum Mechanics and Statistical Physics)
  • Article
  • Open Access
13 Citations
10,980 Views
16 Pages

21 April 2009

The conformation spaces generated by short hydrophobic-hydrophilic (HP) lattice chains are mapped to conformation space networks (CSNs). The vertices (nodes) of the network are the conformations and the links are the transitions between them. It has...

(This article belongs to the Special Issue Protein Folding 2009)
  • Feature Paper
  • Article
  • Open Access
9 Citations
7,367 Views
23 Pages

An Exploration Algorithm for Stochastic Simulators Driven by Energy Gradients

  • Anastasia S. Georgiou,
  • Juan M. Bello-Rivas,
  • Charles William Gear,
  • Hau-Tieng Wu and ,
  • Eliodoro Chiavazzo and
  • Ioannis G. Kevrekidis
  • + 1 author+ 0 author

22 June 2017

In recent work, we have illustrated the construction of an exploration geometry on free energy surfaces: the adaptive computer-assisted discovery of an approximate low-dimensional manifold on which the effective dynamics of the system evolves. Constr...

(This article belongs to the Special Issue Understanding Molecular Dynamics via Stochastic Processes)
  • Review
  • Open Access
48 Citations
7,511 Views
16 Pages

Spontaneous Switching among Conformational Ensembles in Intrinsically Disordered Proteins

  • Ucheor B. Choi,
  • Hugo Sanabria,
  • Tatyana Smirnova,
  • Mark E. Bowen and
  • Keith R. Weninger

22 March 2019

The common conception of intrinsically disordered proteins (IDPs) is that they stochastically sample all possible configurations driven by thermal fluctuations. This is certainly true for many IDPs, which behave as swollen random coils that can be de...

(This article belongs to the Special Issue Intrinsically Disordered Proteins and Chronic Diseases)
  • Article
  • Open Access
3 Citations
3,827 Views
13 Pages

Speech Recognition of Accented Mandarin Based on Improved Conformer

  • Xing-Yao Yang,
  • Shao-Dong Zhang,
  • Rui Xiao,
  • Jiong Yu and
  • Zi-Yang Li

16 April 2023

The convolution module in Conformer is capable of providing translationally invariant convolution in time and space. This is often used in Mandarin recognition tasks to address the diversity of speech signals by treating the time-frequency maps of sp...

  • Article
  • Open Access
2 Citations
3,499 Views
51 Pages

7 April 2019

In this article, I consider local solutions of the 3D Navier–Stokes equations and its properties such as an existence of global and smooth solution, uniform boundedness. The basic role is assigned to a special invariant class of solenoidal vect...

(This article belongs to the Special Issue New Trends in Differential and Difference Equations and Applications)
  • Article
  • Open Access
2 Citations
943 Views
17 Pages

11 September 2025

This paper focuses on dealing with several types of enriched cyclic contractions defined in the union of a set of non-empty closed subsets of normed or metric spaces. In general, any finite number p≥2 of subsets is permitted in the cyclic arrangem...

(This article belongs to the Topic Fixed Point Theory and Measure Theory)
  • Article
  • Open Access
28 Citations
6,966 Views
12 Pages

7 August 2017

In this contribution, we develop the Maxwell generalized thermodynamical relations via the metric derivative model upon the mapping to a continuous fractal space. This study also introduces the total q-derivative expressions depending on two variable...

(This article belongs to the Special Issue Phenomenological Thermodynamics of Irreversible Processes)
  • Article
  • Open Access
2 Citations
2,358 Views
26 Pages

24 October 2024

In the field of modern drive technology, conventional form-fit shaft-hub connections, such as the standardized keyway connection, are reaching their mechanical limits due to the space-saving design. The trochoidal profiles are elegant modern shaft-hu...

  • Review
  • Open Access
34 Citations
7,259 Views
24 Pages

Structure and Dynamics of dsDNA in Cell-like Environments

  • Amar Singh,
  • Arghya Maity and
  • Navin Singh

1 November 2022

Deoxyribonucleic acid (DNA) is a fundamental biomolecule for correct cellular functioning and regulation of biological processes. DNA’s structure is dynamic and has the ability to adopt a variety of structural conformations in addition to its m...

(This article belongs to the Section Statistical Physics)
  • Article
  • Open Access
2 Citations
1,743 Views
16 Pages

15 April 2024

f-biharmonic maps are generalizations of harmonic maps and biharmonic maps. In this paper, we give some descriptions of f-biharmonic curves in a space form. We also obtain a complete classification of proper f-biharmonic isometric immersions of a dev...

(This article belongs to the Special Issue Advances in Differential Geometry and Its Applications)
  • Proceeding Paper
  • Open Access
1,203 Views
5 Pages

The aim of this research is to generalize the famous Lyapunov Theorem of the classical explicit differential systems given by two abstract forms: x′(t)=Px(t) and xn+1=Pxn where P is a linear operator, or a matrix when the space has finite dimen...

(This article belongs to the Proceedings of The 1st International Online Conference on Mathematics and Applications)
  • Article
  • Open Access
16 Citations
3,201 Views
14 Pages

A UAV Coverage Path Planning Method Based on a Diameter–Height Model for Mountainous Terrain

  • Nan Zhang,
  • Linkai Yue,
  • Qiang Zhang,
  • Chaojun Gao and ,
  • Bingbing Zhang and
  • Yonghuan Wang
  • + 1 author+ 0 author

14 February 2025

Most unmanned aerial vehicles (UAVs) nowadays engage in coverage missions using coverage paths with simple patterns that are limited in two-dimensional space, ignoring the elevation features of mountainous terrain intentionally, resulting in losing d...

(This article belongs to the Special Issue Advances in Unmanned Aerial Vehicle (UAV) System)
  • Article
  • Open Access
7 Citations
3,144 Views
13 Pages

Phosphorylation, Mg-ADP, and Inhibitors Differentially Shape the Conformational Dynamics of the A-Loop of Aurora-A

  • Zahra Musavizadeh,
  • Alessandro Grottesi,
  • Giulia Guarguaglini and
  • Alessandro Paiardini

12 April 2021

The conformational state of the activation loop (A-loop) is pivotal for the activity of most protein kinases. Hence, the characterization of the conformational dynamics of the A-loop is important to increase our understanding of the molecular process...

  • Article
  • Open Access
7 Citations
2,269 Views
20 Pages

24 October 2023

Space target classification based on micro-motion characteristics has become a subject of great interest in the field of radar, particularly when using deep learning techniques. However, in practical applications, the ability of deep learning is hamp...

(This article belongs to the Special Issue Radar High-Speed Target Detection, Tracking, Imaging and Recognition - 2nd Edition)
  • Article
  • Open Access
4 Citations
2,525 Views
13 Pages

24 June 2022

Acousto-optical tunable filter (AOTF) does not conform to the pinhole model due to the acousto-optic interaction. A calculation method of AOTF aberrations under the condition of incident light with a large arbitrary angle is proposed to solve the pro...

(This article belongs to the Special Issue Acousto-Optical Spectral Technologies)
  • Article
  • Open Access
10 Citations
4,278 Views
24 Pages

20 July 2022

Based on the anti-parallelogram mechanism, an approximate cylindrical rolling joint is proposed to develop a novel cable-driven snake-arm robot with multiple degrees of freedom (DOF). Furthermore, the kinematics of the cable-driven snake-arm robot ar...

(This article belongs to the Special Issue Recent Advance in Medical and Rehabilitation Robots)
  • Article
  • Open Access
2,939 Views
14 Pages

Norm Estimates of the Pre-Schwarzian Derivatives for Functions with Conic-like Domains

  • Sidra Zafar,
  • Abbas Kareem Wanas,
  • Mohamed Abdalla and
  • Syed Zakar Hussain Bukhari

29 May 2023

The pre-Schwarzianand Schwarzian derivatives of analytic functions f are defined in U, where U is the open unit disk. The pre-Schwarzian as well as Schwarzian derivatives are popular tools for studying the geometric properties of analytic mappings. T...

(This article belongs to the Special Issue Complex Analysis and Geometric Function Theory, 2nd Edition)
  • Article
  • Open Access
1 Citations
2,613 Views
20 Pages

Grasping objects with a high degree of anthropomorphism is a critical component in the field of highly anthropomorphic robotic grasping. However, the accuracy of contact maps and the irrationality of the grasping gesture become challenges for grasp g...

(This article belongs to the Section Locomotion and Bioinspired Robotics)
  • Article
  • Open Access
1 Citations
3,192 Views
16 Pages

21 July 2021

We construct recently introduced palatial NC twistors by considering the pair of conjugated (Born-dual) twist-deformed D=4 quantum inhomogeneous conformal Hopf algebras Uθ(su(2,2)⋉T4) and Uθ¯(su(2,2)⋉T¯4), where T4 describes complex twistor coordinat...

(This article belongs to the Special Issue Quantum Group Symmetry and Quantum Geometry)
  • Article
  • Open Access
2 Citations
4,110 Views
9 Pages

8 November 2018

The QCD Lagrangian is based on quark and gluonic fields—not squarks nor gluinos. However, one can show that its hadronic eigensolutions conform to a representation of superconformal algebra, reflecting the underlying conformal symmetry of chira...

(This article belongs to the Special Issue Selected Papers from the 7th International Conference on New Frontiers in Physics (ICNFP 2018))
  • Article
  • Open Access
509 Views
47 Pages

Entropy-based soft-min operators and Gibbs policies are widely used in reinforcement learning to smooth greedy decisions and regulate stochastic action selection. Their behavior depends critically on an inverse temperature parameter, which is often c...

(This article belongs to the Special Issue Advances in Intelligence-Empowered Technologies)
  • Article
  • Open Access
2 Citations
4,030 Views
22 Pages

16 December 2024

Humanoid robots are becoming a global research focus. Due to the limitations of bipedal walking technology, mobile humanoid robots equipped with a wheeled chassis and dual arms have emerged as the most suitable configuration for performing complex ta...

  • Article
  • Open Access

2 November 2026

Conformal prediction provides distribution-free coverage under exchangeability, but global calibration can conceal heterogeneous forecast errors. We introduce attribution-state conformal forecasting (ASCF), which learns calibration strata from residu...

(This article belongs to the Special Issue Trustworthy Machine Learning: Explainability, Robustness and Conformal Prediction)
  • Article
  • Open Access
18 Citations
4,898 Views
12 Pages

Nanobody Paratope Ensembles in Solution Characterized by MD Simulations and NMR

  • Monica L. Fernández-Quintero,
  • Eugene F. DeRose,
  • Scott A. Gabel,
  • Geoffrey A. Mueller and
  • Klaus R. Liedl

Variable domains of camelid antibodies (so-called nanobodies or VHH) are the smallest antibody fragments that retain complete functionality and therapeutic potential. Understanding of the nanobody-binding interface has become a pre-requisite for rati...

(This article belongs to the Section Molecular Biophysics)
  • Article
  • Open Access
138 Views
50 Pages

20 October 2026

This paper is concerned with robust performance analysis for continuous time invariant systems governed by linear stochastic differential equations driven by statistically uncertain Ito processes. The uncertainty is understood as the deviation of imp...

(This article belongs to the Special Issue Information Theory in Control Systems, 3rd Edition)
  • Article
  • Open Access
11 Citations
6,114 Views
18 Pages

Mixed Reality: A Reconsideration Based on Mixed Objects and Geospatial Modalities

  • Konstantinos Evangelidis,
  • Theofilos Papadopoulos and
  • Stella Sylaiou

9 March 2021

We put forward a conceptualization of Mixed Reality as a blend of digital objects with real ones that coexist and interact with each other and they are also spatially referenced so that they are properly perceived in space by an observer that could p...

(This article belongs to the Special Issue Extended Reality: From Theory to Applications)
  • Article
  • Open Access
474 Views
46 Pages

14 September 2026

This article studies a time-dependent latent sentiment representation governed by a semilinear stochastic evolution equation on a separable Hilbert space. The objective is to derive uncertainty, interpretability, and robustness from one stochastic la...

(This article belongs to the Special Issue Sentiment-Driven Modelling in Business, Economics, and Social Sciences)
  • Article
  • Open Access
12 Citations
6,854 Views
23 Pages

A Novel Hybrid Intelligent Indoor Location Method for Mobile Devices by Zones Using Wi-Fi Signals

  • Manuel Castañón–Puga,
  • Abby Stephanie Salazar,
  • Leocundo Aguilar,
  • Carelia Gaxiola-Pacheco and
  • Guillermo Licea

2 December 2015

The increasing use of mobile devices in indoor spaces brings challenges to location methods. This work presents a hybrid intelligent method based on data mining and Type-2 fuzzy logic to locate mobile devices in an indoor space by zones using Wi-Fi s...

(This article belongs to the Special Issue Sensors for Indoor Mapping and Navigation)
  • Review
  • Open Access
1 Citations
2,029 Views
81 Pages

19 January 2025

This paper addresses the author’s current understanding of the physics of interactions in polymers under a voltage field excitation. The effect of a voltage field coupled with temperature to induce space charges and dipolar activity in dielectr...

(This article belongs to the Special Issue Editorial Board Members' Collection Series: Polymer Physics and Theory—2nd Edition)
  • Article
  • Open Access
9 Citations
4,206 Views
19 Pages

The Sensitivity of the Pair-Angle Distribution Function to Protein Structure

  • Patrick Adams,
  • Jack Binns,
  • Tamar L. Greaves and
  • Andrew V. Martin

20 August 2020

The continued development of X-ray free-electron lasers and serial crystallography techniques has opened up new experimental frontiers. Nanoscale dynamical processes such as crystal growth can now be probed at unprecedented time and spatial resolutio...

(This article belongs to the Special Issue Time Resolved Crystallography)
  • Article
  • Open Access
3 Citations
2,078 Views
15 Pages

15 November 2022

Taking the freeze-sealing pipe roof method (FSPR) adopted in the Gongbei Tunnel project as the background, this study develops a simplified calculation model by considering different soil freezing points, tube layout, and site conditions. The analyti...

(This article belongs to the Special Issue Artificial Ground Freezing Technology)
  • Article
  • Open Access
16 Citations
6,489 Views
19 Pages

14 October 2022

Urban inequality, specifically in vulnerable areas, has been a study topic from the earliest days of sociology to the present. This study’s objective is to discuss the scope and limitation of the concept of urban vulnerability, whilst generatin...

(This article belongs to the Special Issue Building Resilience for Future Extreme Events: Focusing on Vulnerable and Marginalized Inhabitants and Co-Inhabitants)
  • Article
  • Open Access
18 Citations
11,119 Views
19 Pages

Design of Anti-HIV Ligands by Means of Minimal Topological Difference (MTD) Method

  • Corina Duda-Seiman,
  • Daniel Duda-Seiman,
  • Dan Dragos,
  • Mihai Medeleanu and ,
  • Valentin Careja,
  • Mihai V. Putz,
  • Ana-Maria Lacrama,
  • Adrian Chiriac,
  • Remus Nutiu and
  • Dan Ciubotariu
  • + 5 authors+ 0 author

29 November 2006

Molecular modeling and MTD methods are useful tools to assess both qualitative(SAR) and quantitative (QSAR) chemical structure-biological activity relationships. The 1-[(2-hydroxiethoxi)-methyl]-6-(phenylthio)thymine congeners (HEPT ligands) show in...

  • Article
  • Open Access
32 Citations
9,290 Views
15 Pages

9 June 2019

Recently proposed spherical convolutional neural networks (SCNNs) have shown advantages over conventional planar CNNs on classifying spherical images. However, two factors hamper their application in an objection detection task. First, a convolution...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
439 Views
16 Pages

Inverse Design of Flexible Metamaterial Absorbers Based on Adversarial Diffusion Model

  • Xingyu Zhou,
  • Jianwei Wang,
  • Fengyang Long,
  • Lingjin Li and
  • Zhiyuan Zhang

Flexible metamaterial absorbers have exhibited tremendous potential for applications in intelligent wearable devices and radar stealth protection due to their remarkable electromagnetic response characteristics and mechanical conformal adaptability....

(This article belongs to the Section Microwave and Wireless Communications)
  • Article
  • Open Access
4 Citations
2,959 Views
41 Pages

29 November 2024

We demonstrate that a short oligonucleotide complementary to a G-quadruplex domain can invade this iconic, noncanonical DNA secondary structure in ways that profoundly influence the properties and differential occupancies of the resulting DNA polymor...

(This article belongs to the Section Biomacromolecules: Nucleic Acids)
  • Article
  • Open Access
3 Citations
2,242 Views
14 Pages

Power System Operation Mode Calculation Based on Improved Deep Reinforcement Learning

  • Ziyang Yu,
  • Bowen Zhou,
  • Dongsheng Yang,
  • Weirong Wu and ,
  • Chen Lv and
  • Yong Cui
  • + 1 author+ 0 author

30 December 2023

Power system operation mode calculation (OMC) is the basis for unit commitment, scheduling arrangement, and stability analyses. In dispatch centers at all levels, OMC is usually realized by manually adjusting the parameters of power system components...

(This article belongs to the Section E2: Control Theory and Mechanics)

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