Henry Smith (regicide) Henry Smith (regicide) Henry Smith (1620–1668) was an English Member of Parliament and one of the regicides of King Charles I. He was born in Withcote, Leicestershire in 1620; son of Henry Smith born in 1589 and Frideswide (Fritzjoyce) Wright. He studied at Oxford University and Lincoln's Inn. He married miss Holland. In 1640 he was elected MP for Leicestershire. In January 1649, as a commissioner of the High Court of Justice for the trial of Charles I at the trial of King Charles, he was 19th of the 59 signatories on the death warrant of the King. After the
Conformal Killing equation Conformal Killing equation In conformal geometry, the conformal Killing equation on a manifold of space-dimension "n" with metric formula_1 describes those vector fields formula_2 which preserve formula_1 up to scale, i.e. for some function formula_5 (where formula_6 is the Lie derivative). Vector fields that satisfy the conformal Killing equation are exactly those vector fields whose flow preserves the conformal structure of the manifold. The name Killing refers to Wilhelm Killing, who first investigated the Killing equation for vector fields that preserve a Riemannian metric. By taking the trace we find that necessarily formula_7. Therefore we can write the conformal Killing