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Roczniki Polskiego Towarzystwa Matematycznego. Seria 2: Wiadomości Matematyczne
2003 [Z] 39 27-38
Bulletin of the Polish Academy of Sciences. Mathematics
EN We present classical and generalized Riemann-Hilbert problem in several contexts arising from K-theory and bordism theory. The language of Fredholm pairs turns out to be useful and unavoidable. We propose an abstract formulation of a notion of bordism in the context of Hilbert spaces equipped with s[...]
Demonstratio Mathematica
EN We prove that certain Volterra composition operators are hypercyclic on the Frechet space of all continuous functions u : [0,1) ->- R or C with u(0) = 0.
Environmental Biotechnology
EN The use of mixtures of oil-based fuels with organic chemical components (e.g. ethanol, methanol) has been gaining ground in recent years. Several countries try nowadays to replace part of the fossil fuels for various reasons including economics, sustainability or optimization of resources. The chara[...]
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