List of Theorems - O

O

• Odd number theorem (physics)
• Open mapping theorem (complex analysis)
• Open mapping theorem (functional analysis)
• Optical equivalence theorem (quantum optics) (quantum physics)
• Optional stopping theorem (probability theory)
• Orbit theorem (control theory)
• Orbit-stabilizer theorem (group theory)
• Ore's theorem (graph theory)
• Ornstein theorem (ergodic theory)
• Ortsbogen theorem (Euclidean geometry)
• Oseledec theorem (ergodic theory)
• Osterwalder–Schrader theorem (physics)
• Ostrowski's theorem (number theory)
• Ostrowski–Hadamard gap theorem (complex analysis)