• Farkas’ Lemma in the bilinear setting and evaluation functionals 

      Zalduendo, Ignacio; Aron, Richard; García, Domingo; Pinasco, Damián (Real Academia de Ciencias Exactas, Físicas y Naturales, 2023)
      We prove the following Farkas’ Lemma for simultaneously diagonalizable bilinear forms: If A1, . . . , Ak, and B : Rn × Rn → R are bilinear forms, then one—and only one—of the following holds: (i) B = a1A1 +· · ·+ak Ak ...