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Call for papers - special issue of the Cartographic Journal on Participatory GIS

Call for papers on a special issue on past, present and future of
Participatory GIS and Public Participation in GIS.

In the 1990s, participatory GIS (PGIS) and Public Participation GIS (PPGIS) 892 more words

VGI

Ricci Flow With Surgery on Three-Manifolds

Grisha Perelman – 2003

ABSTRACT

This is a technical paper, which is a continuation of math.DG/0211159. Here we construct Ricci flow with surgeries and verify most of the assertions, made in section 13 of that e-print; the exceptions are (1) the statement that manifolds that can collapse with local lower bound on sectional curvature are graph manifolds – this is deferred to a separate paper, since the proof has nothing to do with the Ricci flow, and (2) the claim on the lower bound for the volume of maximal horns and the smoothness of solutions from some time on, which turned out to be unjustified and, on the other hand, irrelevant for the other conclusions. 43 more words

PAPERS

Trans-Planckian Particles and the Quantization of Time

Gerard ‘t Hooft – 1998

ABSTRACT

Trans-Planckian particles are elementary particles accelerated such that their energies surpass the Planck value. There are several reasons to believe that trans-Planckian particles do not represent independent degrees of freedom in Hilbert space, but they are controlled by the cis-Planckian particles. 174 more words

THEORETICAL PHYSICS & MATHEMATICS

Loop Quantum Gravity: The first twenty five years

Carlo Rovelli – 2012

ABSTRACT

This is a review paper invited by the journal “Classical and Quantum Gravity” for a “Cluster Issue” on approaches to quantum gravity. 98 more words

THEORETICAL PHYSICS & MATHEMATICS

Cross-platform Compilers for Functional Languages

I’ve just submitted a new draft, Cross-platform Compilers for Functional Languages. Abstract:

Modern software is often designed to run on a virtual machine, such as the JVM or .NET’s CLR.

183 more words
Idris

Still Life | Time for coffee

Help out! Give to ₪ Please Help Me To Get A New Camera ₪ Raise funds on IndiegogoLife

Description From Photographer if Any:

One of the most enjoyable moments when a person does not need anything and relax.

By millanag

Source: 500px.com

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