Zobrazeno 1 - 10
of 30 631
pro vyhledávání: '"Bandeira, A"'
Autor:
Bandeira, N. S., Chaves, Andrey, de Castro, L. V., Filho, R. N. Costa, Mirzakhani, M., Peeters, F. M., da Costa, D. R.
We present a systematic study of the energy levels of twisted bilayer graphene (tBLG) quantum dots (QD) and rings (QR) under an external perpendicular magnetic field. The confinement structures are modeled by a circular dot-like- and ring-like-shaped
Externí odkaz:
http://arxiv.org/abs/2410.12014
We study the optimization landscape of a smooth nonconvex program arising from synchronization over the two-element group $\mathbf{Z}_2$, that is, recovering $z_1, \dots, z_n \in \{\pm 1\}$ from (noisy) relative measurements $R_{ij} \approx z_i z_j$.
Externí odkaz:
http://arxiv.org/abs/2407.13407
The first paper in this series introduced a new family of nonasymptotic matrix concentration inequalities that sharply capture the spectral properties of very general Gaussian (as well as non-Gaussian) random matrices in terms of an associated noncom
Externí odkaz:
http://arxiv.org/abs/2406.11453
We consider a group synchronization problem with multiple frequencies which involves observing pairwise relative measurements of group elements on multiple frequency channels, corrupted by Gaussian noise. We study the computational phase transition i
Externí odkaz:
http://arxiv.org/abs/2406.03424
The cross-section for the production of an electroweak gauge boson ($G = W^{\pm}, Z^0, \gamma$) at forward rapidities in $pp$ collisions is derived within the color - dipole $S$ - matrix framework. We present the full expressions for the differential
Externí odkaz:
http://arxiv.org/abs/2405.10265
We prove the existence of a positive semidefinite matrix $A \in \mathbb{R}^{n \times n}$ such that any decomposition into rank-1 matrices has to have factors with a large $\ell^1-$norm, more precisely $$ \sum_{k} x_k x_k^*=A \quad \implies \quad \sum
Externí odkaz:
http://arxiv.org/abs/2405.06154
Autor:
de Carvalho, Philipe Lira, author, Bandeira, Mariana Lima, author, Cançado, Airton Cardoso, author
Publikováno v:
Society and Sustainability
Publikováno v:
EconomiA, 2024, Vol. 25, Issue 3, pp. 405-421.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/ECON-05-2023-0068
Publikováno v:
RAUSP Management Journal, 2024, Vol. 59, Issue 3, pp. 275-292.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/RAUSP-08-2023-0156
Autor:
Pinheiro, Alan Bandeira, dos Santos, Joina Ijuniclair Arruda Silva, Costa, Marconi Freitas da, Carraro, Wendy Beatriz Witt Haddad
Publikováno v:
International Journal of Development Issues, 2024, Vol. 23, Issue 3, pp. 430-446.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJDI-01-2024-0007