Belousov, E.G.: Introduction to Convex Analysis and Integer Programming. Moscow University Publisher, Moscow (1977)
Belousov, E.G., Klatte, D.: A Frank-Wolfe type theorem for convex polynomial programs. Comput. Optim. Appl. 22, 37–48 (2002)
Bertsekas, D.P., Tseng, P.: Set intersection theorems and existence of optimal solutions. Math. Program. 110, 287–314 (2007)
Blum, E., Oettli, W.: Direct proof of the existence theorem in quadratic programming. Oper. Res. 20, 165–167 (1972)
Bonnans, J.F., Shapiro, A.: Perturbation Analysis of Optimization Problems. Springer (2000)
Borwein, J.M.: Necessary and sufficient conditions for quadratic minimality. Numer. Funct. Anal. Appl. 5, 127–140 (1982)
Dong, V.V., Tam, N.N.: On the solution existence for convex quadratic programming problems in Hilbert spaces. Taiwanese J. Math. 20(6), 1417–1436 (2016)
Eaves, B.C.: On quadratic programming. Manag. Sci. 17, 698–711 (1971)
Frank, M., Wolfe, P.: An algorithm for quadratic programming. Naval Res. Logist. Quarter. 3, 95–110 (1956)
Hestenes, M.R.: Applications of the theory of quadratic forms in Hilbert space to the calculus of variations. Pac. J. Math. 1, 525–581 (1951)
Hauser, R.: The S-Procedure via dual cone calculus. arXiv:1305.2444 (2013)
Ioffe, A.D., Tihomirov, V.M.: Theory of Extremal Problems. North-Holand Publishing Company, Amsterdam-New York-Oxford (1979)
Kim, D.S., Tam, N.N., Yen, N.D.: Solution existence and stability of quadratically constrained convex quadratic programs. Optim. Lett. 6, 363–373 (2012)
Kurdila, A.J., Zabarankin, M.: Convex Functional Analysis. Birkhauser Verlag (2005)
Luenberger, D.G.: Optimization by Vector Space Methods. Wiley, New York-London-Sydney-Toronto (1969)
Luo, Z.Q., Zhang, S.: On extensions of the Frank-Wolfe theorems. Comput. Optim. Appl. 13, 87–110 (1999)
Schochetman, I.E., Smith, R.L., Tsui, S.K.: Solution existence for infinite quadratic programming. Technical Report 97–10 (1997)
Semple, J.: Infinite positive-definite quadratic programming in a Hilbert space. J. Optim. Theory Appl. 88, 743–749 (1996)
Rudin, W.: Functional Analysis. McGraw-Hill Inc (1991)
Yakubovich, V.A.: Nonconvex optimization problem: The infinite-horizon linear-quadratic control problem with quadratic constraints. Sys. Control Lett. 19, 13–22 (1992)