Portugaliae Mathematica

An interpolation theorem for graphical homomorphisms

Frank Harary, Stephen T. Hedetniemi, Geert Prins · 1967 · 102 citations

Interpolation Space, Graph Theory, Algebraic Graph Theory +2

Controllability results for cascade systems of $m$ coupled parabolic PDEs by one control force

Manuel González-Burgos, Luz de Teresa · 2010 · 99 citations · Full text

Control Force, Parabolic Pdes, Cascade System +9

Fibonacci and Lucas numbers with only one distinct digit.

Florian Luca · 2000 · 89 citations

Lucas Numbers, Computational Number Theory

TOPOLOGY IN A CATEGORY: COMPACTNESS

Maria Manuel Clementino, Eraldo Giuli, Walter Tholen · 1996 · 74 citations

Geometric Group Theory, Subobject Structure, Higher Category Theory +8

Unit-regular rings

Gertrude Ehrlich · 1968 · 74 citations