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Ivancevic_Applied-Diff-Geom

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Glossary of Frequently Used SymbolsGeneral– ‘iff’ means ‘if and only if’;– ‘r.h.s’ means ‘right hand side’; ‘l.h.s’ means ‘left hand side’;– ODE means ordinary differential equation, while PDE means partial differentialequation;– Einstein’s summation convention over repeated indices (not necessarilyone up and one down) is assumed in the whole text, unless explicitly statedotherwise.SetsN – natural numbers;Z – integers;R – real numbers;C – complex numbers;H – quaternions;K – number field of real numbers, complex numbers, or quaternions.Mapsf : A → B – a function, (or map) between sets A ≡ Dom f and B ≡ Cod f;Ker f = f −1 (e B ) − a kernel of f;Im f = f(A) − an image of f;Coker f = Cod f/ Im f − a cokernel of f;Coim f = Dom f/ Ker f − a coimage of f;xi

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