Mκ,μ⁡(z)∼Γ⁡(1+2⁢μ)Γ⁡(12+μ-κ)⁢ⅇ12⁢z⁢z-κ⁢∑s=0∞(12-μ+κ)s⁢(12+μ+κ)ss!⁢z-s+Γ⁡(1+2⁢μ)Γ⁡(12+μ+κ)⁢ⅇ-12⁢z±(12+μ-κ)⁢π⁢ⅈ⁢zκ⁢∑s=0∞(12+μ-κ)s⁢(12-μ-κ)ss!⁢(-z)-s,