Given a 3-vector of complex numbers, (A,B,C), define its discrete Fourier transform as
where . That is, I’ll use lower case letters to denote the discrete Fourier transforms of UPPER case letters. The above leaves off a factor of but it will do.
Of interest today will be vectors (A,B,C) which happen to satisfy A+B+C = [...]
She was born with given name Johanna Maria Magdalena and a last name of either Behrend or Ritschel, my sources disagree. Her parents were unmarried, did she receive the last name of her father, Oskar Ritschel, or her mother, Auguste Behrend? In either case it was November 11, 1901. She was one of the most fascinating personalities of her time.
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