This paper is a systematic approach to the construction of coronas (i.e. Higson dominated boundaries at infinity) combable spaces. We introduce three additional properties for combings: properness, coherence and expandingness. Properness condition under which our corona works. Under assumption expandingness, attaching Rips complex yields contractible [Formula: see text]-compact space in sits as...

We study the properties of tilting modules in the context of properly stratified algebras. In particular, we answer the question when the Ringel dual of a properly stratified algebra is properly stratified itself, and show that the class of properly stratified algebras for which the characteristic tilting and cotilting modules coincide is closed under taking the Ringel dual. Studying stratified...

This paper is a systematic approach to the construction of coronas (i. e. Higson dominated boundaries at infinity) of combable spaces. We introduce three additional properties for combings: properness, coherence and expandingness. Properness is the condition under which our construction of the corona works. Under the assumption of coherence and expandingness, attaching our corona to a Rips comp...

Cardiologia e Fisiopatologia Cardiovascolare, Università di Perugia, Policlinico Monteluce, Perugia, Italy; Studiecoördinatiecentrum, Laboratorium Hypertensie, Campus Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium; Section of Hypertension and Clinical Pharmacology, The University of Connecticut Health Center, Farmington, Connecticut, U.S.A.; Department of Clinical Pharmacology an...