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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorDmitri Pavlov
   • CommentTimeApr 4th 2021
   • PermaLink
   Author: Dmitri Pavlov
   Format: MarkdownItexCreated with the following content: Arthur Geoffrey Walker was a professor at the University of Liverpool, working in [[differential geometry]], [[general relativity]], and [[cosmology]]. In particular, he is responsible for the [[Friedmann–Lemaître–Robertson–Walker metric]] in [[cosmology]]. ## Selected writings On [[vector fields]] as [[derivations]]: * [[W. F. Newns]], [[A. G. Walker]], _Tangent Planes To a Differentiable Manifold_. Journal of the London Mathematical Society s1-31:4 (1956), 400–407 ([doi:10.1112/jlms/s1-31.4.400](https://doi.org/10.1112/jlms/s1-31.4.400)) <a href="https://ncatlab.org/nlab/revision/A.+G.+Walker/1">v1</a>, <a href="https://ncatlab.org/nlab/show/A.+G.+Walker">current</a>

   Created with the following content:

   Arthur Geoffrey Walker was a professor at the University of Liverpool, working in differential geometry, general relativity, and cosmology.

   In particular, he is responsible for the Friedmann–Lemaître–Robertson–Walker metric in cosmology.

   Selected writings

   On vector fields as derivations:

   • W. F. Newns, A. G. Walker, Tangent Planes To a Differentiable Manifold. Journal of the London Mathematical Society s1-31:4 (1956), 400–407 (doi:10.1112/jlms/s1-31.4.400)

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeApr 4th 2021
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded the `category:people`-tag <a href="https://ncatlab.org/nlab/revision/diff/A.+G.+Walker/2">diff</a>, <a href="https://ncatlab.org/nlab/revision/A.+G.+Walker/2">v2</a>, <a href="https://ncatlab.org/nlab/show/A.+G.+Walker">current</a>

   added the category:people-tag

   diff, v2, current