Zobrazeno 1 - 10
of 66 494
pro vyhledávání: '"Keita, A. A."'
Autor:
Yuchi, Kosuke, Nishio-Hamane, Daisuke, Kojima, Keita, Moriyama, Kodai, Okuma, Ryutaro, Okamoto, Yoshihiko
We report the synthesis and electronic properties of polycrystalline samples of Zr6MBi2 (M = Ru and Fe) crystallizing in the hexagonal Zr6CoAl2-type structure. Based on their electrical resistivity, magnetization, and heat capacity data, Zr6RuBi2 and
Externí odkaz:
http://arxiv.org/abs/2410.16684
Autor:
Omiya, Keita
Quantum many-body scars (QMBS) represent a weak ergodicity-breaking phenomenon that defies the common scenario of thermalization in closed quantum systems. They are often regarded as a many-body analog of quantum scars (QS) -- a single-particle pheno
Externí odkaz:
http://arxiv.org/abs/2410.16916
Graphs are useful for representing various realworld objects. However, graph neural networks (GNNs) tend to suffer from over-smoothing, where the representations of nodes of different classes become similar as the number of layers increases, leading
Externí odkaz:
http://arxiv.org/abs/2410.15640
Autor:
Keita, Mamadou K., Homan, Christopher, Hamani, Sofiane Abdoulaye, Bremang, Adwoa, Zampieri, Marcos, Alfari, Habibatou Abdoulaye, Ibrahim, Elysabhete Amadou, Owusu, Dennis
Grammatical error correction (GEC) is important for improving written materials for low-resource languages like Zarma -- spoken by over 5 million people in West Africa. Yet it remains a challenging problem. This study compares rule-based methods, mac
Externí odkaz:
http://arxiv.org/abs/2410.15539
Autor:
Kajigaya, Toru, Kunikawa, Keita
We show that the Morse index of unstable closed minimal hypersurface $\Sigma$ in a compact semi-simple Riemannian symmetric space $M=G/K$ is bounded from below by constant times the first Betti number of $\Sigma$.
Comment: 26 pages
Comment: 26 pages
Externí odkaz:
http://arxiv.org/abs/2410.11585
Autor:
Kinjo, Keita
In recent years, the concepts of ``diversity'' and ``inclusion'' have attracted considerable attention across a range of fields, encompassing both social and biological disciplines. To fully understand these concepts, it is critical to not only exami
Externí odkaz:
http://arxiv.org/abs/2410.05668
Autor:
Morimae, Tomoyuki, Xagawa, Keita
In quantum cryptography, there could be a new world, Microcrypt, where cryptography is possible but one-way functions (OWFs) do not exist. Although many fundamental primitives and useful applications have been found in Microcrypt, they lack ``OWFs-fr
Externí odkaz:
http://arxiv.org/abs/2410.04777
Autor:
Sallaberry, Gregory, Priest, Benjamin W., Armstrong, Robert, Schneider, Michael D., Muyskens, Amanda, Steil, Trevor, Iwabuchi, Keita
Analysis of cosmic shear is an integral part of understanding structure growth across cosmic time, which in-turn provides us with information about the nature of dark energy. Conventional methods generate \emph{shear maps} from which we can infer the
Externí odkaz:
http://arxiv.org/abs/2410.00308
Autor:
Strohbeen, Patrick J., Abbaspour, Abtin, Keita, Amara, Nabih, Tarek, Lejuste, Aliona, Danilenko, Alisa, Levy, Ido, Issokson, Jacob, Cowan, Tyler, Strickland, William M., Hatefipour, Mehdi, Argueta, Ashley, Baker, Lukas, Mikalsen, Melissa, Shabani, Javad
Semiconductor crosshatch patterns in thin film heterostructures form as a result of strain relaxation processes and dislocation pile-ups during growth of lattice mismatched materials. Due to their connection with the internal misfit dislocation netwo
Externí odkaz:
http://arxiv.org/abs/2409.17321
Towards the end of an infectious disease outbreak, when a period has elapsed without new case notifications, a key question for public health policy makers is whether the outbreak can be declared over. This requires the benefits of a declaration (e.g
Externí odkaz:
http://arxiv.org/abs/2409.16531