Text ( visual ) : unmediated Computational mathematics and variational analysis / Nicholas J. Daras, Themistocles M. Rassias, editors. -- Cham : Springer , c2020. -- ix, 568 p. : ill. (chiefly col.) ; 25 cm. -- (Springer optimization and its applications ; v. 159). -- Includes bibliographical references. -- ISBN 9783030446246 ; (BC09301296) ; https://ci.nii.ac.jp/ncid/BC09301296 Author Heading(s): Daras, Nicholas J. ; Rassias, Themistocles M.