In mathematics, a topological space X is contractible if the identity map on X is null-homotopic, i.e. if it is homotopic to some constant map. [1] [2] Intuitively, a contractible space is one that ...

In mathematics, a topological space X is contractible if the identity map on X is null-homotopic, i.e. if it is homotopic to some constant map. Intuitively, a contractible space is one that can be ...

As more awareness is created on the potential of feed and fodder production, the Commodities Development Initiative (CDI), ...

Luminaries gathered to kick off the Perelman Performing Arts Center’s inaugural Icons of Culture Festival, beginning with an award bestowed to MTV pioneer Tom Freston.

Earlier this month the Mathematics Institute at Uppsala University hosted a conference called Categorification in Algebra and Topology, clearly a theme close to our collective heart. As yet there are ...

This series is devoted to thorough, yet reasonably concise treatments of topics in any branch of mathematics. Typically, a Tract takes up a single thread in a wide subject, and follows its ...

FOR many years clinicians have noted a correlation between the level of thyroid function and the speed of tendon reflexes. As early as 1924 Chaney, at the Mayo Clinic, attempted to quantitate the ...

Meetings need to be in the open with full community participation. We have some contractible issues, homelessness, housing. I’m not for change just for the sake of change. We’ve seen some of ...