00624nam a22001577a 4500003000400000005001700004008004100021020001800062082001600080100003900096245017800135260003600313300001800349653005600367700004300423OSt20250220152420.0250220b        |||||||| |||| 00| 0 eng d  a9783110647365  a515.7bK85V  aKravvaritis, Dimitrios C.eAuthor   aVariational methods in nonlinear analysis:bwith applications in optimization and partial differential equationscby Dimitrios C. Kravvaritis and Athanasios N. Yannacopoulos  aBerlinbWalter de Gruyterc2020  axxv,474p.bPB  aNonlinear analysis; Partial Differential Equations   aYannacopoulos, Athanasios N. eAuthor