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The approach based on the strangeness index includes un- determined solution components but requires a number of constant rank conditions, whereas the approach based on

This Lecture is devoted to a review of the relevant mathematical concepts, such as Lie algebroid, Courant bracket, Dirac structure and generalized complex geometry (also its

Keywords Algebraic 2–complex, Wall’s D(2)–problem, geometric realiza- tion of algebraic 2–complexes, homotopy classification of 2–complexes, gen- eralized quaternion groups,

In this paper we study multidimensional fractional advection-dispersion equations in- volving fractional directional derivatives both from a deterministic and a stochastic point

The key point is the concept of a Hamiltonian system, which, contrary to the usual approach, is not re- lated with a single Lagrangian, but rather with an Euler–Lagrange form

The correspondence between components of the locus of limit linear series and Young tableaux is defined so that on the elliptic curves C i whose indices do not appear in the

In this paper we show how to obtain a result closely analogous to the McAlister theorem for a certain class of inverse semigroups with zero, based on the idea of a Brandt

An integral inequality is deduced from the negation of the geometrical condition in the bounded mountain pass theorem of Schechter, in a situation where this theorem does not