title: Ellina Grigorieva
text: # Ellina Grigorieva
  
  Ellina Grigorieva is a Russian mathematician and mathematics educator known for her books on mathematical problem solving. She is a professor in the Texas Woman's University Department of Mathematics and Computer Science, and an expert on control theory and its applications to the spread of disease.
  
  ## Education and career
  
  Grigorieva was born in Moscow, and educated at Moscow State University.
  
  ## Books
  
  Grigorieva's problem-solving books include:
  
  * Methods of Solving Number Theory Problems (Birkhäuser, 2018)
  * Methods of Solving Sequence and Series Problems (Birkhäuser, 2016)
  * Methods of Solving Nonstandard Problems (Birkhäuser, 2015)
  * Methods of Solving Complex Geometry Problems (Birkhäuser, 2013)
  