Zobrazeno 1 - 10
of 22 328
pro vyhledávání: '"A. Spiro"'
Let $\epsilon_{1},\ldots,\epsilon_{n}$ be a sequence of independent Rademacher random variables. We prove that there is a constant $c>0$ such that for any unit vectors $v_1,\ldots,v_n\in \mathbb{R}^2$, $$\Pr\left[||\epsilon_1 v_1+\ldots+\epsilon_n v_
Externí odkaz:
http://arxiv.org/abs/2408.11034
Autor:
Nie, Jiaxi, Spiro, Sam
The random Tur\'an number $\mathrm{ex}(G_{n,p}^r,F)$ is the maximum number of edges in an $F$-free subgraph of the random $r$-uniform hypergraph $G_{n,p}^r$. We prove general results which (informally) shows that if $F$ is an $r_0$-graph, then upper
Externí odkaz:
http://arxiv.org/abs/2408.03406
Autor:
Schafer, Joseph S, Duskin, Kayla, Prochaska, Stephen, Wack, Morgan, Beers, Anna, Bozarth, Lia, Agajanian, Taylor, Caulfield, Mike, Spiro, Emma S, Starbird, Kate
Understanding the spread of online rumors is a pressing societal challenge and an active area of research across domains. In the context of the 2022 U.S. midterm elections, one influential social media platform for sharing information -- including ru
Externí odkaz:
http://arxiv.org/abs/2407.16051
Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration. This process is responsible for the onset of solar flares, coronal mass ejections, and ot
Externí odkaz:
http://arxiv.org/abs/2407.07687
We develop a powerful tool for embedding any tree poset $P$ of height $k$ in the Boolean lattice which allows us to solve several open problems in the area. We show that: * If $\mathcal{F}$ is a family in $\mathcal{B}_n$ with $|\mathcal{F}|\ge (q-1+\
Externí odkaz:
http://arxiv.org/abs/2406.11999
We classify the Ricci flat Lorentzian $n$-manifolds satisfying three particular conditions, encoding and combining some crucial features of the Kerr metrics and the Robinson-Trautman optical structures. We prove that: (a) If $n>4$, there is no Lorent
Externí odkaz:
http://arxiv.org/abs/2405.14760
Autor:
Spiro, Sam
Given a digraph $D$, we say that a set of vertices $Q\subseteq V(D)$ is a $q$-kernel if $Q$ is an independent set and if every vertex of $D$ can be reached from $Q$ by a path of length at most $q$. In this paper, we initiate the study of several extr
Externí odkaz:
http://arxiv.org/abs/2404.07305
The presence of political misinformation and ideological echo chambers on social media platforms is concerning given the important role that these sites play in the public's exposure to news and current events. Algorithmic systems employed on these p
Externí odkaz:
http://arxiv.org/abs/2404.06422
Autor:
Ali, A., Barone, M., Brentjes, S., Britzger, D., Dittmar, M., Ekelöf, T., Ellis, J., de Souza, S. Fonseca, Glazov, A., Gritsan, A. V., Hoffmann, R., Jung, H., Klein, M., Klyukhin, V., Korbel, V., Kokkas, P., Kostka, P., Langenegger, U., List, J., Raicevic, N., Rostovtsev, A., Vera, A. Sabio, Spiro, M., Tonelli, G., van Mechelen, P., Vigen, J.
The armed invasion of Ukraine by the Russian Federation has adversely affected the relations between Russia and Western countries. Among other aspects, it has put scientific cooperation and collaboration into question and changed the scientific lands
Externí odkaz:
http://arxiv.org/abs/2403.07833
Autor:
Ivey, Thomas A., Karigiannis, Spiro
We consider the existence of cohomogeneity one solitons for the isometric flow of $G_2$-structures on the following classes of torsion-free $G_2$-manifolds: the Euclidean $R^7$ with its standard $G_2$-structure, metric cylinders over Calabi-Yau 3-fol
Externí odkaz:
http://arxiv.org/abs/2402.01420