TY - JOUR ID - Krantz2026 LB - Krantz2026 AU - Krantz, Steven G. TI - One complex variable versus several complex variables: The Hartogs extension phenomenon in context ST - One complex variable versus several complex variables: The Hartogs extension phenomenon in context JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2026 VL - 46 IS - 4 SP - 513 EP - 520 DO - https://doi.org/10.7494/OpMath.202607111 UR - https://doi.org/10.7494/OpMath.202607111 AB - We explicate the difference between the function theory of one complex variable and the function theory of several complex variables. In particular, we use the inhomogeneous Cauchy-Riemann equations to explain why there is a Hartogs extension phenomenon in several complex variables but not in one complex variable. KW - domain KW - Hartogs extension phenomenon KW - Cauchy-Riemann equations SN - 1232-9274 ER -