3 papers
math.NT2026
-arithmetic groups acting simply transitively on products of Bruhat-Tits trees
Jonah Mendel, Jiahui Yu
Lubotzky asked when a transitive -arithmetic action on a Bruhat--Tits tree arising from a totally definite quaternion algebra can be refined to a simply transitive ac…
cs.CR2026
MCP-Guard: A Multi-Stage Defense-in-Depth Framework for Securing Model Context Protocol in Agentic AI
Wenpeng Xing, Zhonghao Qi, Yupeng Qin +6
While Large Language Models (LLMs) have achieved remarkable performance, they remain vulnerable to jailbreak. The integration of Large Language Models (LLMs) with external tools vi…
cs.CR2025
PREE: Towards Harmless and Adaptive Fingerprint Editing in Large Language Models via Knowledge Prefix Enhancement
Xubin Yue, Zhenhua Xu, Wenpeng Xing +3
Addressing the intellectual property protection challenges in commercial deployment of large language models (LLMs), existing black-box fingerprinting techniques face dual challeng…