thema EDItEUR::P Mathematics and Science::PB Mathematics::PBT Probability and statistics Bäcklund transformations Clairin’s method Elliott Lieb Fuchsian reduction analysis God as an (optional) axiom Letters in Mathematical Physics (LMP) Lorentz transformation Patlak–Keller–Segel systems Riemann–Liouville fractional derivative Riemann–Liouville fractional differential equations Sobolev spaces Textbook analytic semigroups bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general bic Book Industry Communication::P Mathematics & science::PB Mathematics::PBT Probability & statistics blow-up boundary control canonical system of q-difference equations canonicalization chemically reactive flows conservation laws constrained Hamiltonian system defect of Cauchy type problem deformed algebras deformed calculus deformed numbers differential relationships existence extended Chebyshev functional