Zobrazeno 1 - 10
of 791
pro vyhledávání: '"Zuddas, P"'
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
Motivated by the duality theory between Hermitian symmetric spaces of noncompact and compact types, we introduce and examine the concept of K\"ahler duality between domains of $\mathbb C^n$.
Comment: 33 pages
Comment: 33 pages
Externí odkaz:
http://arxiv.org/abs/2409.13263
Autor:
Boulé, Jean-Baptiste, d'Ars, Jean de Bremond, Courtillot, Vincent, Gèze, Marc, Gibert, Dominique, Mouël, Jean-Louis Le, Lopes, Fernando, Maineult, Alexis, Zuddas, Pierpaolo
What is certain is that surface temperatures around the globe vary considerably, regardless of the time scales or underlying causes. Since 1850, we have observed an average increase in global surface temperature anomalies of 1.2$^{\circ}$ and a media
Externí odkaz:
http://arxiv.org/abs/2409.09765
Autor:
Mouël, Jean-Louis Le, Gibert, Dominique, Boulé, Jean-Baptiste, Zuddas, Pierpaolo, Courtillot, Vincent, Lopes, Fernando, Gèze, Marc, Maineult, Alexis
In this paper, we revisit old electrical measurements conducted on a poplar tree in 2003 (Gibert et al. 2006), which showed the presence of a diurnal electrical signal, attributed to an electrokinetic phenomenon correlated with sap flow, even in wint
Externí odkaz:
http://arxiv.org/abs/2402.07766
Autor:
Courtillot, V., Lopes, F., Kossobokov, V., Zuddas, P., Gibert, D., Boulé, J. -B., Mouël, J. -L. Le
In this lengthy letter, we wanted to discuss the concept of climate based on definitions established for over a century and direct observations that we have been collecting for more than a century as well. To do this, we present and discuss the remar
Externí odkaz:
http://arxiv.org/abs/2310.02768
Autor:
Zuddas, Pierpaolo, Lopes, Fernando
The periodical degassing from CO2 over-pressured reservoirs may have serious consequences for the environment making urgent understanding the processes and forecasting the frequency. Prediction though needs methods that depends from temporal and spat
Externí odkaz:
http://arxiv.org/abs/2307.06750
Autor:
Courtillot, Vincent, Boulé, Jean-Baptiste, Mouël, Jean-Louis Le, Gibert, Dominique, Zuddas, Pierpaolo, Maineult, Alexis, Gèze, Marc, Lopes, Fernando
The trajectory of Earth about the Sun is perturbed by torques exerted by the Moon and Sun, and also the four giant planets. These provoke variations of insolation at Earth surface, known as kyr-long Milankovi\'c cycles. The concept has been extended
Externí odkaz:
http://arxiv.org/abs/2306.11450
Autor:
Mouël, J-L. Le, Gibert, D., Courtillot, V., Dumont, S., Ars, J. de Bremond, Petrosino, S., Lopes, P. Zuddas F., Boulé, J-B., Neves, M. C., Custódio, S., Silveira, G., Kossobokov, V., Coen, L., Geze, M.
The decryption of the temporal sequence of volcanic eruptions is a key step in better anticipating future events. Volcanic activity is the result of a complex interaction between internal and external processes, with time scales spanning multiple ord
Externí odkaz:
http://arxiv.org/abs/2304.09564
Autor:
Bais, Valentina, Zuddas, Daniele
We give a new elementary proof of the parallelizability of closed orientable 3-manifolds. We use as the main tool the fact that any such manifold admits a Heegaard splitting.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/2207.12881
Autor:
Loi, Andrea, Zuddas, Fabio
Let $P_{\lambda\Sigma_n}$ be the Ehrhart polynomial associated to an intergal multiple $\lambda$ of the standard symplex $\Sigma_n \subset \mathbb{R}^n$. In this paper we prove that if $(M, L)$ is an $n$-dimensional polarized toric manifold with asso
Externí odkaz:
http://arxiv.org/abs/2206.13977