Existence of feasible potentials on infinite networks.
We show that discrete exponentials form a basis of discrete holomorphic functions on a finite critical map. On a combinatorially convex set, the discrete polynomials form a basis as well.
We study different notions of extremal plurisubharmonic functions.
Nous étudions, dans les espaces de Banach, les familles résolvantes (ou pseudo-résolvantes) et les “générateurs” qu’on peut leur associer quand tend vers zéro ou quand tend vers l’infini. Lorsque la famille résolvante est à contraction, ces “générateurs” qu’on peut leur associer quand tend vers zéro ou quand tend vers l’infini. Lorsque la famille résolvante est à contraction, ces “générateurs” vérifient des “principes du maximum” qui sont des versions “abstraites” de principes du maximum...
We apply the Feynman-Kac formula to compute the λ-Poisson kernels and λ-Green functions for half-spaces or balls in hyperbolic spaces. We present known results in a unified way and also provide new formulas for the λ-Poisson kernels and λ-Green functions of half-spaces in ℍⁿ and for balls in real and complex hyperbolic spaces.
Since 1970’s B. Fuglede and others have been studying finely holomorhic functions, i.e., ‘holomorphic’ functions defined on the so-called fine domains which are not necessarily open in the usual sense. This note is a survey of finely monogenic functions which were introduced in (Lávička, R., A generalisation of monogenic functions to fine domains, preprint.) like a higher dimensional analogue of finely holomorphic functions.