Zdzisław Skupień (27 November 1938 – 1 January 2025) was a Polish mathematician, expert in

optimization Mathematical optimization (alternatively spelled ''optimisation'') or mathematical programming is the selection of a best element, with regard to some criteria, from some set of available alternatives. It is generally divided into two subfiel ...

discrete mathematics Discrete mathematics is the study of mathematical structures that can be considered "discrete" (in a way analogous to discrete variables, having a bijection with the set of natural numbers) rather than "continuous" (analogously to continuous f ...

, and

graph theory In mathematics and computer science, graph theory is the study of ''graph (discrete mathematics), graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of ''Vertex (graph ...

, academic, and dr. hab. (1982).Wniosek o przyznanie uprawnienia do nadawania stopnia doktora habilitowanego w dziedzinie nauk matematycznych dyscyplina: matematyka Wydziałowi Matematyki Stosowanej Akademii Górniczo-Hutniczej
(retrieved 29 August 2012) Skupień was born in

Świlcza Świlcza is a village in Rzeszów County, Subcarpathian Voivodeship, in south-eastern Poland. It is the seat of the gmina (administrative district) called Gmina Świlcza. It lies approximately north-west of the regional capital Rzeszów Rzesz ...

, Poland. In 1964, Skupień introduced the concept of "locally

Hamiltonian graph In the mathematical field of graph theory, a Hamiltonian path (or traceable path) is a path in an undirected or directed graph that visits each vertex exactly once. A Hamiltonian cycle (or Hamiltonian circuit) is a cycle that visits each verte ...

s". In 1976, Skupień introduced the concept of "homogeneously traceable graphs". Skupień authored over 140 publications. He died on 1 January 2025, at the age of 86.

Awards

* 1998: Medal of the Commission for National Education (Medal Komisji Edukacji Narodowej) * 1988:

Order of Polonia Restituta The Order of Polonia Restituta (, ) is a Polish state decoration, state Order (decoration), order established 4 February 1921. It is conferred on both military and civilians as well as on alien (law), foreigners for outstanding achievements in ...

(Krzyż Kawalerski Orderu Odrodzenia Polski) * 1983: Cross of Merit (Złoty Krzyż Zasługi)

References

1938 births 2025 deaths Polish mathematicians Recipients of the Order of Polonia Restituta People from Rzeszów County {{mathematician-stub