4 papers
Nearly permanental cospectral graphs
Weifang Lv, Quanyu Tang, Wei Wang +1
Let be a simple graph of order with adjacency matrix . The \emph{determinant} and the \emph{permanen}t of the matrix are defined as \[\mathrm{det}A= \sum_{…
D2-ScaleAgent: Dual-Dimensional Scaling for Long Document Understanding
Hao Zhang, Longrong Yang, Lunhao Duan +3
Multi-modal retrieval-augmented generation (RAG) is a key technique for visually rich long document understanding. Existing multi-modal RAG methods are progressively advancing towa…
Large values of quadratic character sums
Zikang Dong, Ruihua Wang, Weijia Wang +2
In this paper, we investigate large values of quadratic Dirichlet character sums. We prove new Omega results for both short and long quadratic character sums under the assumption o…
Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors
Shaoxin Yuan, Bin Wu, Mingyong Jing +11
Atom-light interaction noise can limit thermal-vapor sensing. Existing theories often treat internal-state dynamics, finite-mode atomic motion, and stochastic renewal separately, o…