4 papers
Whitehead's theorem for minimal finite models
David Mosquera-Lois
We investigate the extent to which Whitehead's theorem remains valid for minimal finite models. We show that it fails in this setting, answering negatively a question posed by Barm…
Morse-Bott inequalities for endomorphisms
Enrique MacÃas-Virgós, Alejandro O. Majadas-Moure, David Mosquera-Lois +1
Let be a finite simplicial complex, let be a simplicial map and let be a discrete Morse-Bott function on satisfying for all simpli…
A Combinatorial Study of the Fixed Point Index
Jesús A. Ãlvarez López, Alejandro O. Majadas-Moure, David Mosquera-Lois
We introduce a theory of integration with respect to the fixed point index, offering a substantial improvement over previous approaches based on the Lefschetz number. This framewor…
Sheaf Theoretic Approach to Lefschetz Calculus
Alejandro O. Majadas-Moure, David Mosquera-Lois
We lift the Lefschetz number from an algebraic invariant of maps between spaces to an invariant of morphisms of data over the spaces.