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Canonical quantum gravity and the problem of time

- C. Isham
- Physics
- 21 October 1992

The aim of this paper is to provide a general introduction to the problem of time in quantum gravity. This problem originates in the fundamental conflict between the way the concept of ‘time’ is used… Expand

TOPOLOGICAL AND GLOBAL ASPECTS OF QUANTUM THEORY

- C. Isham
- Mathematics
- 1983

Lectures On Quantum Theory: Mathematical And Structural Foundations

- C. Isham
- Computer Science
- 1 September 1995

TLDR

Quantum logic and the histories approach to quantum theory

- C. Isham
- Mathematics
- 1 May 1994

An extensive analysis is made of the Gell‐Mann and Hartle axioms for a generalized ‘histories’ approach to quantum theory. Emphasis is placed on finding analogs of the lattice structure employed in… Expand

A Topos Perspective on the Kochen-Specker Theorem II. Conceptual Aspects and Classical Analogues

- J. Butterfield, C. Isham
- Physics, Mathematics
- 31 August 1998

In a previous paper, we proposed assigning asthe value of a physical quantity in quantum theory acertain kind of set (a sieve) of quantities that arefunctions of the given quantity. The motivation… Expand

Representations of the holonomy algebras of gravity and nonAbelian gauge theories

- A. Ashtekar, C. Isham
- Physics
- 15 February 1992

Holonomy algebras arise naturally in the classical description of Yang-Mills fields and gravity, and it has been suggested, at a heuristic level, that they may also play an important role in a… Expand

Methods of Modern Mathematical Physics, Vol 1: Functional Analysis

- C. Isham
- Computer Science
- 1 December 1972

TLDR

Spacetime and the Philosophical Challenge of Quantum Gravity

- J. Butterfield, C. Isham
- Physics
- 2001

We survey some philosophical aspects of the search for a quantum theory of gravity, emphasising how quantum gravity throws into doubt the treatment of spacetime common to the two `ingredient… Expand

Quantum Concepts in Space and Time

- R. Penrose, C. Isham
- Physics
- 1986

Recent developments in quantum theory have focused attention on fundamental questions, in particular on whether it might be necessary to modify quantum mechanics to reconcile quantum gravity and… Expand

A topos foundation for theories of physics: II. Daseinisation and the liberation of quantum theory

- A. Doering, C. Isham
- Mathematics, Physics
- 7 March 2007

This paper is the second in a series whose goal is to develop a fundamentally new way of constructing theories of physics. The motivation comes from a desire to address certain deep issues that arise… Expand

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