Zobrazeno 1 - 10
of 1 759
pro vyhledávání: '"P. Bais"'
Autor:
Bais, Valentina
We present a proof of the fact that a closed orientable 4-manifold is parallelizable if and only if its second Stiefel-Whitney class, first Pontryagin class and Euler characteristics vanish. This follows from a stronger result due to Dold and Whitney
Externí odkaz:
http://arxiv.org/abs/2410.22117
Autor:
Dar, Shahid Shafi, Rehman, Mohammad Zia Ur, Bais, Karan, Haseeb, Mohammed Abdul, Kumara, Nagendra
Publikováno v:
journal={Expert Systems with Applications},pages={125337},year={2024},publisher={Elsevier}
In times of crisis, the prompt and precise classification of disaster-related information shared on social media platforms is crucial for effective disaster response and public safety. During such critical events, individuals use social media to comm
Externí odkaz:
http://arxiv.org/abs/2410.08814
We produce examples of pairwise non-diffeomorphic closed irreducible 4-manifolds with non-trivial free abelian fundamental group of rank less than three and small Euler characteristic. These exotic smooth structures become standard after taking a con
Externí odkaz:
http://arxiv.org/abs/2410.06642
In recent years, street view imagery has grown to become one of the most important sources of geospatial data collection and urban analytics, which facilitates generating meaningful insights and assisting in decision-making. Synthesizing a street-vie
Externí odkaz:
http://arxiv.org/abs/2405.08961
Autor:
Abedin, Afia, Bais, Abdul, Buntain, Cody, Courchesne, Laura, McQuinn, Brian, Taylor, Matthew E., Ullah, Muhib
The massive proliferation of social media data represents a transformative moment in conflict studies. This data can provide unique insights into the spread and use of weaponry, but the scale and types of data are problematic for traditional open-sou
Externí odkaz:
http://arxiv.org/abs/2311.00810
Modern agriculture heavily relies on Site-Specific Farm Management practices, necessitating accurate detection, localization, and quantification of crops and weeds in the field, which can be achieved using deep learning techniques. In this regard, cr
Externí odkaz:
http://arxiv.org/abs/2310.01055
Autor:
Bais, Valentina, Torres, Rafael
Four observations compose the main results of this note. The first records the existence of a smoothly embedded 2-sphere $S$ inside $\mathbb{R} P^2\times S^2$ such that performing a Gluck twist on $S$ produces a manifold $Y$ that is homeomorphic but
Externí odkaz:
http://arxiv.org/abs/2308.04227
In this note, we study necessary and sufficient conditions for the existence of a Spin $(n + 1)$-dimensional cobordism that supports a non-singular and non-degenerate pseudo-Riemannian metric of signature $(2, n - 1)$, which restricts to a non-singul
Externí odkaz:
http://arxiv.org/abs/2306.02749
Publikováno v:
Environmental Microbiome, Vol 19, Iss 1, Pp 1-17 (2024)
Abstract Background Bacillus subtilis is well known for promoting plant growth and reducing abiotic and biotic stresses. Mutant gene-defective models can be created to understand important traits associated with rhizosphere fitness. This study aimed
Externí odkaz:
https://doaj.org/article/afc2558b4f2f4625892b610ee644a186
Autor:
K. Papachristopoulou, I. Fountoulakis, A. F. Bais, B. E. Psiloglou, N. Papadimitriou, I.-P. Raptis, A. Kazantzidis, C. Kontoes, M. Hatzaki, S. Kazadzis
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 1851-1877 (2024)
Solar irradiance nowcasting and short-term forecasting are important tools for the integration of solar plants into the electricity grid. Understanding the role of clouds and aerosols in those techniques is essential for improving their accuracy. In
Externí odkaz:
https://doaj.org/article/8a901f838ac349ff863db27e53342c29