Rational homotopy type of nilpotent and complete spaces
Realization of the dynamics of ODE's in scalar parabolic PDE's
Recent developments concerning entropy and approximation numbers
Re-establishing supersymmetry between harmonic oscillators in dimensions
Regularity for doubly nonlinear parabolic equations
Relations on topological spaces
Relaxation oscillations in systems with different time scales
Remark on a conjecture of conformal transformations of Riemannian manifolds
Remarks on a theorem of B. Pospíšil
Remarks on an algebraic structure for a topology
Remarks on canonical commutation relations
Remarks on CR-manifolds of codimension in
The aim of the article is to give a conceptual understanding of Kontsevich’s construction of the universal element of the cohomology of the coarse moduli space of smooth algebraic curves with given genus and punctures. In a first step the author presents a toy model of tree graphs coloured by an operad for which the graph complex and the universal cycle will be constructed. The universal cycle has coefficients in the operad for -algebras with trivial differential over the (dual) cobar construction...
Remarks on development of curves
Remarks on fixed point theorem for inverse limit spaces
Remarks on free objects in categories
Remarks on product spaces
Remarks on separation axioms
Remarks on the economic criterion - the Internal rate of return
The internal rate of return (IRR) together with the present value (PV) is used as a popular measure for financial project. When used appropriately, it can be a valuable aid in project acceptance or selection. The purpose of this article is to survey the facts about this criterion published so far. More, we investigate the cases of multiple or nonexistent IRRs and try to choose the relevant one and explain its economic meaning.
Remarks on the Schouten-Nijenhuis bracket
Remarks on transfinite diameters