14 Aug 2026
Finite-Dimensional Translation Spaces and Lie Group Projections
A new proof classifying continuous non-constant solutions of f(x+y)f(x−y)=f(x)²−f(y)² using finite-dimensional translation spaces and Lie group projections.
Real analysis
SUBJECT
Limits, continuity and the structure of the real line, with the counterexamples that shape them.
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