The study of computable structures and equivalence relations lies at the intersection of computability theory, algebra and logic, and provides essential insights into the classification and decision ...

Say that a class of equivalence relations ${\cal C}$ has the finite union property if every equivalence relation that is the union of finitely many members of ${\cal C}$ must itself be a member of ...

This talk will be an introduction to the field of Borel equivalence relations (also called invariant descriptive set theory). No background will be assumed. We will motivate the main object of study: ...

It has recently been established that there are exactly seven Witt equivalence classes of quadratic number fields, and then all quadratic and cubic number fields have been classified with respect to ...

NCERT Solutions for Class 12 Maths Chapter 1: NCERT questions and solutions are key to understanding the concepts of the syllabus. This will help students to score well in the CBSE Board Exam 2025.