Aychew Wondyfraw | Mathematics | Best Academic Researcher Award

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Mr. Aychew Wondyfraw | Mathematics | Best Academic Researcher Award

Researcher at Haramaya University, Ethiopia

Aychew Wondyfraw Tesfaye is an Ethiopian academic and researcher, currently serving as a lecturer and researcher in the Department of Mathematics at Haramaya University, Ethiopia. With a strong academic background, including an MSc in Mathematical Modeling from Haramaya University, Aychew is deeply engaged in the study and application of mathematical modeling techniques, focusing on areas such as stochastic models, disease dynamics, and corruption transmission dynamics. His work has contributed significantly to the understanding of various complex systems through mathematical approaches.

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Education

Aychew’s educational journey began with a Bachelor of Science (BSc) in Mathematics from Haramaya University, which he completed between 2015 and 2017. His academic pursuit continued with a Master of Science (MSc) in Mathematical Modeling at Haramaya University, which he completed in 2021. He further expanded his knowledge with a Higher Diploma in Teaching Methodology in 2022. In addition to his formal education, Aychew has participated in various training programs to strengthen his expertise, including courses on cloud computing, MATLAB, data science, and statistical data management.

Experience

Since 2019, Aychew has been a lecturer and researcher in the Department of Mathematics at Haramaya University. His role involves teaching undergraduate and graduate courses, conducting research, and coordinating the university’s Freshman Program since 2022. He has developed a keen interest in mathematical modeling and its applications in real-world problems. His responsibilities also extend to mentoring students and leading academic workshops, further contributing to the growth of mathematical sciences at Haramaya University.

Research Interests

Aychew’s research interests are primarily centered around mathematical modeling, focusing on stochastic processes, disease dynamics, and corruption transmission. His work explores the application of mathematical models to understand the spread of diseases such as COVID-19 and cholera, as well as social phenomena like corruption. His research methodology often combines stochastic and deterministic models to analyze complex systems, contributing to fields such as public health, social sciences, and applied mathematics.

Awards

Throughout his academic career, Aychew has been recognized for his contributions to mathematical modeling and research. His participation in various training programs and conferences has allowed him to expand his knowledge and network within the mathematical community. Additionally, he has been involved in presenting his research at significant academic platforms, such as the Ethiopian Mathematics Professionals Association Annual Conference, where he showcased his work on disease dynamics and corruption modeling.

Publications

Aychew has published several important papers, with a focus on stochastic modeling and its applications in disease dynamics and social issues. His notable publications include:

Tesfaye, A.W., Tolasa, T.M., Cheri, E.H. & Mekonen, T.M., 2025. “Modeling, Analyzing, and Simulating the Dynamics of Racism Using a Stochastic Dynamical System.” Abstract and Applied Analysis, 2025(1), 2472412. Cited by: 20.

Tesfaye, A.W. & Alemneh, H.T., 2023. “Analysis of a Stochastic Model of Corruption Transmission Dynamics with Temporary Immunity.” Heliyon, 9(1). Cited by: 15.

Tesfaye, A.W. & Satana, T.S., 2021. “Stochastic Model of the Transmission Dynamics of COVID-19 Pandemic.” Advances in Difference Equations, 2021, pp.1-21. Cited by: 50.

Tilahun, G.T., Woldegerima, W.A. & Wondifraw, A., 2020. “Stochastic and Deterministic Mathematical Model of Cholera Disease Dynamics with Direct Transmission.” Advances in Difference Equations, 2020(1), pp.1-23. Cited by: 35.

Conclusion

Aychew Wondyfraw Tesfaye is an accomplished academic and researcher whose contributions to mathematical modeling are shaping the understanding of disease transmission and social dynamics in Ethiopia and beyond. His continuous involvement in education, research, and academic leadership at Haramaya University underscores his commitment to advancing the field of mathematics. Aychew’s work continues to inspire and drive innovation in mathematical modeling, offering valuable insights into real-world challenges.

Zhigang Jia | Mathematics | Best Researcher Award

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Prof. Zhigang Jia | Mathematics | Best Researcher Award

Professor at Jiangsu Normal University, China

Zhigang Jia is a distinguished professor and researcher in the field of numerical mathematics and image processing. With an extensive academic career spanning over a decade, he has contributed significantly to mathematical sciences, particularly in matrix computations and image recognition. Currently serving as a professor at Jiangsu Normal University, he has also been affiliated with renowned institutions such as the University of Macau and Hong Kong Baptist University. His research primarily focuses on numerical algorithms, low-rank approximation, and their applications in medical imaging and artificial intelligence. Through his work, he has established himself as a leading scholar in computational mathematics.

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Education

Zhigang Jia pursued his PhD in Mathematics at East China Normal University under the supervision of Prof. Musheng Wei from 2006 to 2009. Prior to that, he earned his Master’s degree from Liaocheng University in 2006, guided by Prof. Jianli Zhao. His academic journey began with a Bachelor’s degree in Mathematics from Liaocheng University, which he completed in 2003. His rigorous training in mathematical sciences laid the foundation for his research in numerical algorithms, computational science, and image processing techniques.

Experience

Zhigang Jia has held multiple academic and research positions throughout his career. He began as a Lecturer at Jiangsu Normal University in 2009 and was subsequently promoted to Associate Professor in 2011. In 2014, he was appointed as a Professor at Jiangsu Normal University, where he continues to lead research in numerical mathematics and image processing. He has also served as a researcher at Jiangsu Key Laboratory of Education Big Data Science and Engineering and the Research Institute of Mathematical Science. Additionally, he has undertaken international academic visits, including a postdoctoral research tenure at Hong Kong Baptist University (2018–2019) and a visiting scholar role at the University of Macau (2019). His experience reflects his dedication to advancing mathematical sciences globally.

Research Interests

Zhigang Jia’s research focuses on numerical mathematics, image processing, and face recognition. His work extensively explores low-rank approximation problems, structure-preserving algorithms, and large-scale matrix computations. His research has been applied in various fields, including medical imaging, artificial intelligence, and digital watermarking. He is particularly interested in quaternion matrix computations and their application in color image restoration and video inpainting. His contributions to structural matrix polynomials and spectral decomposition have enhanced the computational efficiency of large-scale data processing.

Awards

Throughout his career, Zhigang Jia has been recognized for his contributions to numerical mathematics and image processing. He has received multiple research grants from the National Science Foundation of China, where he served as the Principal Investigator for projects focusing on data-driven low-rank approximation and structural matrix polynomials. His innovative work in computational mathematics has earned him accolades from academic institutions and research bodies, highlighting his impact on mathematical sciences and engineering applications.

Publications

Zhigang Jia, Yuelian Xiang, Meixiang Zhao, Tingting Wu, and Michael K. Ng, “A new cross-space total variation regularization model for color image restoration with quaternion blur operator,” IEEE Transactions on Image Processing, 34, 995-1008, 2025.

Baohua Huang, Zhigang Jia, and Wen Li, “A Novel Riemannian Conjugate Gradient Method on Quaternion Stiefel Manifold for Computing Truncated Quaternion Singular Value Decomposition,” Numerical Linear Algebra with Applications, 32(1), e70006, 2025.

Yong Chen, Zhigang Jia, Yaxin Peng, and Yan Peng, “Efficient Robust Watermarking Based on Structure-Preserving Quaternion Singular Value Decomposition,” IEEE Transactions on Image Processing, 32, 3964-3979, 2023.

Zhigang Jia, Qianyu Wang, Hongkui Pang, and Meixiang Zhao, “Computing partial quaternion eigenpairs with quaternion shift,” Journal of Scientific Computing, 97, article number 41, 2023.

Zhigang Jia, Qiyu Jin, Michael K. Ng, and Xi-Le Zhao, “Non-local robust quaternion matrix completion for large-scale color image and video Inpainting,” IEEE Transactions on Image Processing, 31, 3868-3883, 2022.

Qiaohua Liu, Sitao Ling, and Zhigang Jia, “Randomized quaternion singular value decomposition for low-rank matrix approximation,” SIAM Journal on Scientific Computing, 44(2), A870-A900, 2022.

Qiaohua Liu, Zhigang Jia, and Yimin Wei, “Multidimensional total least squares problem with linear equality constraints,” SIAM Journal on Matrix Analysis and Applications, 43(1), 124–150, 2022.

Conclusion

Zhigang Jia’s extensive contributions to numerical mathematics, image processing, and computational science have solidified his reputation as a leading researcher. His work in quaternion matrix computations and low-rank approximation methods has influenced multiple disciplines, including artificial intelligence and medical imaging. With numerous high-impact publications, prestigious research grants, and international collaborations, he continues to advance mathematical sciences and its applications. His dedication to research and innovation ensures that his work will have a lasting impact on computational mathematics and beyond.