Janus Deformation of de Sitter Space and Transitions in Gravitational Algebras

Autor: Bak, Dongsu, Kim, Chanju, Yi, Sang-Heon

We consider a time-dependent $\mathcal{O}(1/G)$ deformation of pure de Sitter (dS) space in dS gravity coupled to a massless scalar field. It is the dS counterpart of the AdS Janus deformation and interpolates two asymptotically dS spaces in the far

Externí odkaz: http://arxiv.org/abs/2407.04316

Accelerated System-Reliability-based Disaster Resilience Analysis for Structural Systems

Autor: Kim, Taeyong, Yi, Sang-ri

Resilience has emerged as a crucial concept for evaluating structural performance under disasters because of its ability to extend beyond traditional risk assessments, accounting for a system's ability to minimize disruptions and maintain functionali

Externí odkaz: http://arxiv.org/abs/2404.13321

Dimensionality reduction can be used as a surrogate model for high-dimensional forward uncertainty quantification

Autor: Kim, Jungho, Yi, Sang-ri, Wang, Ziqi

We introduce a method to construct a stochastic surrogate model from the results of dimensionality reduction in forward uncertainty quantification. The hypothesis is that the high-dimensional input augmented by the output of a computational model adm

Externí odkaz: http://arxiv.org/abs/2402.04582

Overview of the Observing System and Initial Scientific Accomplishments of the East Asian VLBI Network (EAVN)

Autor: Akiyama, Kazunori, Algaba, Juan-Carlos, An, Tao, Asada, Keiichi, Asanok, Kitiyanee, Byun, Do-Young, Chanapote, Thanapol, Chen, Wen, Chen, Zhong, Cheng, Xiaopeng, Chibueze, James O., Cho, Ilje, Cho, Se-Hyung, Chung, Hyun-Soo, Cui, Lang, Cui, Yuzhu, Doi, Akihiro, Dong, Jian, Fujisawa, Kenta, Gou, Wei, Guo, Wen, Hada, Kazuhiro, Hagiwara, Yoshiaki, Hirota, Tomoya, Hodgson, Jeffrey A., Honma, Mareki, Imai, Hiroshi, Jaroenjittichai, Phrudth, Jiang, Wu, Jiang, Yongbin, Jiang, Yongchen, Jike, Takaaki, Jung, Dong-Kyu, Jung, Taehyun, Kawaguchi, Noriyuki, Kim, Dong-Jin, Kim, Hyo-Ryoung, Kim, Jaeheon, Kim, Jeong-Sook, Kim, Kee-Tae, Kim, Soon-Wook, Kino, Motoki, Kobayashi, Hideyuki, Koyama, Shoko, Kramer, Busaba H., Lee, Jee-Won, Lee, Jeong Ae, Lee, Sang-Sung, Lee, Sang Won, Li, Bin, Li, Guanghui, Li, Xiaofei, Li, Zhixuan, Liu, Qinghui, Liu, Xiang, Lu, Ru-Sen, Motogi, Kazuhito, Nakamura, Masanori, Niinuma, Kotaro, Oh, Chungsik, Oh, Hongjong, Oh, Junghwan, Oh, Se-Jin, Oyama, Tomoaki, Park, Jongho, Poshyachinda, Saran, Ro, Hyunwook, Roh, Duk-Gyoo, Rujopakarn, Wiphu, Sakai, Nobuyuki, Sawada-Satoh, Satoko, Shen, Zhi-Qiang, Shibata, Katsunori M., Sohn, Bong Won, Soonthornthum, Boonrucksar, Sugiyama, Koichiro, Sun, Yunxia, Takamura, Mieko, Tanabe, Yoshihiro, Tazaki, Fumie, Trippe, Sascha, Wajima, Kiyoaki, Wang, Jinqing, Wang, Na, Wang, Shiqiang, Wang, Xuezheng, Xia, Bo, Xu, Shuangjing, Yan, Hao, Yang, Wenjun, Yeom, Jae-Hwan, Yi, Kunwoo, Yi, Sang-Oh, Yonekura, Yoshinori, Yoon, Hasu, Yu, Linfeng, Yuan, Jianping, Yun, Youngjoo, Zhang, Bo, Zhang, Hua, Zhang, Yingkang, Zhao, Guang-Yao, Zhao, Rongbing, Zhong, Weiye

Publikováno v: Galaxies 2022, 10(6), 113

The East Asian VLBI Network (EAVN) is an international VLBI facility in East Asia and is operated under mutual collaboration between East Asian countries, as well as part of Southeast Asian and European countries. EAVN currently consists of 16 radio

Externí odkaz: http://arxiv.org/abs/2212.07040

Supersymmetric Backgrounds in $(1+1)$ Dimensions and Inhomogeneous Field Theory

Autor: Ho, Jeongwon, Kwon, O-Kab, Park, Sang-A, Yi, Sang-Heon

We find a $(1+1)$-dimensional metric solution for a background hosting various supersymmetric field theories with a single non-chiral real supercharge. This supersymmetric background is globally hyperbolic even though it contains a naked null singula

Externí odkaz: http://arxiv.org/abs/2211.05699