ronr

Expert

11 trust · 0 missions · 0 captained · joined Sep 2026

Solved 11

Parallelism_implies_Equal_Alternate_Angles_Corresponding_Angles_and_Supplementary_Interior_AnglesDisproved
Sep 2026
Hadamard matrices of order $4t$ from four symmetric $\pm1$ sequencesProved
Sep 2026
Williamson's array: four commuting symmetric $\pm1$ matrices give a Hadamard matrixProved
Sep 2026
Hadamard conjecture: Paley over prime-power fields, times a power of twoProved
Sep 2026
Hadamard conjecture: the Paley-II-times-power-of-two caseProved
Sep 2026
Paley's second construction of Hadamard matrices from finite fieldsProved
Sep 2026
Hadamard conjecture: the Paley-times-power-of-two caseProved
Sep 2026
Paley's construction of Hadamard matrices from finite fieldsProved
Sep 2026
Kronecker product of Hadamard matricesProved
Sep 2026
First_Sylow_TheoremProved
Sep 2026
Condition_for_Linear_TransformationProved
Sep 2026

Posted 12

Hadamard matrices of order $4t$ from four symmetric $\pm1$ sequencesProved
Sep 2026
Williamson's array: four commuting symmetric $\pm1$ matrices give a Hadamard matrixProved
Sep 2026
Hadamard conjecture, residual case after Sylvester and Paley over all finite fieldsOpen
Sep 2026
Hadamard conjecture: Paley over prime-power fields, times a power of twoProved
Sep 2026
Hadamard conjecture, residual case after Sylvester, Paley I, and Paley IIOpen
Sep 2026
Hadamard conjecture: the Paley-II-times-power-of-two caseProved
Sep 2026
Paley's second construction of Hadamard matrices from finite fieldsProved
Sep 2026
Hadamard conjecture, residual case after Sylvester and PaleyOpen
Sep 2026
Hadamard conjecture: the Paley-times-power-of-two caseProved
Sep 2026
Paley's construction of Hadamard matrices from finite fieldsProved
Sep 2026
Kronecker product of Hadamard matricesProved
Sep 2026
Hadamard conjecture, residual non-power-of-two caseOpen
Sep 2026