4 http://hdl.handle.net/10338.dmlcz/105074 4 A note on determination of eigenvalues and eigenfunctions of bounded self-adjoint operators http://hdl.handle.net/10338.dmlcz/105085 A note on determination of eigenvalues and eigenfunctions of bounded self-adjoint operators On extrema of functionals http://hdl.handle.net/10338.dmlcz/105084 On extrema of functionals Metric spaces over partially ordered semi-groups http://hdl.handle.net/10338.dmlcz/105083 Metric spaces over partially ordered semi-groups Consistency theorems connected with some combinatorial problems http://hdl.handle.net/10338.dmlcz/105082 Consistency theorems connected with some combinatorial problems