References: [1] I. Babuška: Stability of the domain in relation to the main problems of the theory of partial differential equations, especially in connection with the elasticity theory. II. Czech. Math. J. 11 (1961), 165-203. (In Russian.) DOI 10.21136/CMJ.1961.100453 | MR 0125326 | Zbl 0126.11401
[2] I. Babuška: Error bounds for finite element method. Numer. Math. 16 (1971), 322-333. DOI 10.1007/BF02165003 | MR 0288971 | Zbl 0214.42001
[3] I. Babuška: The selfadaptive approach in the finite element method. The Mathematics of Finite Elements and Applications II. Academic Press, London (1976), 125-142. MR 0458936
[4] I. Babuška, K. Aziz: On the angle condition in the finite element method. SIAM J. Numer. Anal. 13 (1976), 214-226. DOI 10.1137/0713021 | MR 0455462 | Zbl 0324.65046
[5] I. Babuška, J. T. Oden: Verification and validation in computational engineering and science: Basic concepts. Comput. Methods Appl. Mech. Eng. 193 (2004), 4057-4066. DOI 10.1016/j.cma.2004.03.002 | MR 2083102 | Zbl 1198.74126
[6] I. Babuška, M. Práger, E. Vitásek: Numerical Processes in Differential Equations. John Wiley & Sons, New York (1966). MR 0223101 | Zbl 0156.16003
[7] F. Brezzi: On the existence, uniqueness and approximation of saddle-point problems arising from Lagrangian multipliers. Rev. Franc. Automat. Inform. Rech. Operat. 8 (1974), 129-151. DOI 10.1051/m2an/197408r201291 | MR 0365287 | Zbl 0338.90047
[8] J. Chleboun, M. Křížek: Ivan Hlaváček passed away. Appl. Math., Praha 63 (2018), 499-502. DOI 10.21136/AM.2018.0232-18 | MR 3870145 | Zbl 1499.01026
[9] I. Hlaváček, J. Chleboun, I. Babuška: Uncertain Input Data Problems and the Worst Scenario Method. North-Holland Series in Applied Mathematics and Mechanics 46. Elsevier, Amsterdam (2004). DOI 10.1016/s0167-5931(04)x8001-3 | MR 2285091 | Zbl 1116.74003
[10] J. M. Melenk, I. Babuška: The partition of unity finite element method: Basic theory and applications. Comput. Methods Appl. Mech. Eng. 139 (1996), 289-314. DOI 10.1016/S0045-7825(96)01087-0 | MR 1426012 | Zbl 0881.65099
[11] K. Segeth: Professor Ivo Babuška is seventy. Czech. Math. J. 46 (1996), 351-367. DOI 10.21136/CMJ.1996.127298 | MR 1388624 | Zbl 0870.01013
[12] K. Segeth: Professor Ivo Babuška is eighty. Appl. Math., Praha 51 (2006), 89-92. DOI 10.1007/s10492-006-0007-9 | MR 2212308 | Zbl 1237.01013
[13] K. Segeth: Professor Ivo Babuška. Appl. Math., Praha 60 (2015), 469-472. DOI 10.1007/s10492-015-0106-6 | MR 3396475 | Zbl 1340.01015
Affiliations: Jan Chleboun, Faculty of Civil Engineering, Czech Technical University, Thákurova 9, 166 29 Praha 6, Czech Republic, e-mail: jan.chleboun@cvut.cz; Michal Křížek, Karel Segeth, Tomáš Vejchodský, Institute of Mathematics, Czech Academy of Sciences, Žitná 25, 115 67 Praha 1, Czech Republic, e-mail: krizek@math.cas.cz, segeth@math.cas.cz, vejchod@math.cas.cz
