question: Are Elektra and Der Kaiser von Atlantis by the same person?
answer: no
context: Title: Heinrich Claß
  Passage: Heinrich Claß (February 29, 1868, Alzey – April 16, 1953, Jena) was a German right-wing politician and president of the Pan-German League from 1908 to 1939.  He is commonly known for his books about far-right policy, written under the pseudonym "Daniel Frymann" or "Einhart".  The most famous of these was his 1912 book "Wenn ich der Kaiser wär' " (If I were the emperor), in which he agitates for imperialism, Pan-Germanism and Antisemitism.
  Title: Der Kaiser von Atlantis
  Passage: Der Kaiser von Atlantis oder Die Tod-Verweigerung ("The Emperor of Atlantis or The Disobedience of Death") is a one-act opera by Viktor Ullmann with a libretto by Peter Kien.  They collaborated on the work while interned in the Nazi concentration camp of Theresienstadt (Terezín) around 1943.  The Nazis did not allow it to be performed there.
  Title: Elektra (opera)
  Passage: Elektra, Op.  58, is a one-act opera by Richard Strauss, to a German-language libretto by Hugo von Hofmannsthal, which he adapted from his 1903 drama "Elektra".  The opera was the first of many collaborations between Strauss and Hofmannsthal.  It was first performed at the Dresden State Opera on 25 January 1909.  It was dedicated to his friends Natalie and Willy Levin.
  Title: Whit Cunliffe
  Passage: Whittaker "Whit" Cunliffe (15 December 1875 in Haslingden – 1 May 1966) was an English comic singer known for the outfits worn during his stage performances and his World War I song "Hoch, Hoch Der Kaiser" and other songs including "What Does it Matter to Me? " (1906) and "A Different Girl Again".  Cunliffe was described as being a bit of a dandy.
  Title: Der Kaiser von Schexing
  Passage: Der Kaiser von Schexing is a German television series.
citations: Elektra (opera) Der Kaiser von Atlantis