The Shape of Addition: Geometric Structures of Arithmetic in Large Language Models 事件

The Shape of Addition: Geometric Structures of Arithmetic in Large Language Models arXiv:2606.03645v1 Announce Type: cross Abstract: Large Language Models exhibit paradoxical fragility in fundamental arithmetic, implying a disconnect between internal computation and discrete output. By analyzing the residual stream geometry during multi-operand addition, we identify the Iso-Raw-Sum Trajectory (IRST), a geometric structure where representations are anchored by semantic digits and modulated by co