Tag: smoothness

64 Parallelizability of the Milnor's exotic spheres in dimension 7 2011-03-11T07:57:30.373

19 A differentiable isometry is smooth? 2017-02-12T22:14:27.953

16 Example of a smooth morphism where you can't lift a map from a nilpotent thickening? 2010-04-21T05:38:40.963

15 Interpolating between piecewise linear functions, with a family of smooth functions 2011-08-18T08:50:52.073

15 Smoothness of the closest point on a submanifold 2016-06-12T15:20:52.223

14 Is there an example of a variety over the complex numbers with no embedding into a smooth variety? 2009-10-08T15:42:30.050

12 Is there an example of a formally smooth morphism which is not smooth? 2009-10-08T12:06:56.370

12 Slice knots and exotic $\mathbb R^4$ 2010-10-18T13:00:14.887

12 Exotic smoothness and Parallelizability 2011-03-11T13:19:28.417

12 Kolmogorov superposition for smooth functions 2013-08-31T00:13:38.293

12 (When) is isomorphism on differentials enough to guarantee that a map is ├ętale? 2014-05-23T03:21:28.627

10 Do smooth ind schemes have Dualizing sheafs? 2012-02-05T08:51:07.810

10 Do locally convex topological vector spaces embed into diffeological spaces? 2015-06-15T02:18:57.617

10 smooth functional to detect whether a function has a zero 2016-10-11T19:01:27.807

9 Can one check formal smoothness using only one-variable Artin rings? 2009-10-06T12:14:36.740

9 on the local structure of schemes 2015-01-17T12:55:35.723

8 How should I try to imagine exotic smoothness in R4? 2018-02-02T08:35:36.573

7 If $\Omega_{X/Y}$ is locally free of rank $\mathrm{dim}\left(X\right)-\mathrm{dim}\left(Y\right)$, is $X\rightarrow Y$ smooth? 2009-09-30T20:14:16.660

7 Smooth dependence on parameters of invariant manifolds 2016-09-23T19:48:09.080

7 Smoothness of a projective variety via the derived category 2017-01-19T11:02:34.867

6 Are metric isometries smooth at the boundary? 2016-10-27T10:03:59.900

6 Unitary representations of finite dimensional Lie groups on infinite-dimensional Hilbert spaces 2017-05-15T21:15:10.620

5 Does smooth target space and smooth fibers imply smooth total space? 2010-06-01T14:32:27.270

5 Differentiability of polytope shadow areas 2015-06-09T12:02:08.170

5 Extension of functions from geodesically convex compact sets in a Riemannian manifold 2016-04-12T07:53:31.907

5 Confusion with formally unramified = immersion and formally smooth = submersion 2016-08-20T21:59:37.277

5 Derivatives of $C^{\infty}$ non analytic function 2016-12-06T20:39:56.810

4 Is the space of smooth partitions of unity connected? Simply-connected? 2012-01-19T08:11:52.997

4 Smoothness of the convolution of a singular measure with itself 2012-06-27T03:25:57.620

4 Structure of fundamental groups arising from smooth projective morphisms 2013-07-20T15:05:25.630

4 How singular can the Stein factorization of a proper map between smooth varieties be? 2015-03-26T12:25:59.527

4 Isomorphic algebras determine diffeomorphic manifolds 2017-02-03T21:07:52.700

4 Smoothness in von Neumann algebra of measurable functions 2017-02-05T21:47:41.180

3 If $K$ and $L$ are compact convex sets with smooth boundary, does their union have piecewise-smooth boundary? 2010-11-10T16:57:03.947

3 Line bundles on Ind Schemes 2011-09-19T21:43:34.577

3 Does formal smoothness work compatibly across morphisms? 2013-12-17T22:32:57.347

3 Uniqueness of smooth compactification upto a smooth morphism 2016-04-13T09:50:55.633

3 Continuation of a smooth function, whose every derivative is strictly monotonic 2017-01-18T14:48:25.893

3 Formal smoothness implies local freeness of the sheaf of relative differentials 2017-08-01T02:49:50.927

2 Computable distribution on [0,1] with C-infinity distribution function 2011-01-07T16:02:38.460

2 Cubic spline smooting question 2011-02-24T06:54:07.943

2 smoothness of solution for second order elliptic problem 2011-02-28T23:19:57.143

2 Smoothness of hypersurfaces in Grassmannians 2011-08-31T21:58:50.213

2 descent for formally smooth maps 2013-06-16T20:39:13.990

2 fpqc, formal smoothness 2013-06-24T09:34:41.970

2 Steps required to recognise a $z$-smooth number 2013-07-16T16:15:12.700

2 scheme of sections over complete local ring 2013-07-24T07:42:09.037

2 on smoothness of morphisms on an artinian base 2013-09-01T13:45:02.160

2 Are the fibers of this morphism geometrically regular? 2015-03-08T21:57:07.120

2 Dominating affine varieties over $k$ with affine smooth varieties over $k$ 2015-04-17T13:44:20.193

2 Compute the smoothing of functions 2015-05-01T10:02:40.883

2 Smooth bivariate functions identifiable under permutations 2015-05-18T20:09:22.307

2 Blow up along a section of a smooth morphism 2015-09-21T11:57:35.890

2 Holomorphic symplectic form on the moduli space of Higgs bundles 2017-01-16T18:07:40.907

1 What are sufficient conditions on $f, g : \mathbb{R}^n \to \mathbb{R}$ such that `$\{x : f(x) \geq t \} \cup \{ x : g(x) \geq u\}$` has piecewise-smooth boundary? 2010-11-09T14:15:42.867

1 smooth approximation of the hinge loss function 2011-01-07T05:02:21.737

1 Importance of Denjoy-Carleman classes as a class. 2013-05-24T17:47:50.740

1 smooth morphism from a finite type source 2013-06-30T17:53:00.250

1 lift sections on a thickened curve 2013-08-28T20:18:45.357

1 Does flatness/smoothness over special fiber imply flatness/smoothness globally? 2013-11-22T01:26:09.783

1 Hochschild cohomology and formal smoothness 2014-05-18T22:29:55.207

1 Smooth curves in a Frechet space 2014-11-12T13:31:32.767

1 Smoothness and smoothness over formal neighborhood 2014-11-19T00:08:26.993

1 Separability and smoothness 2015-07-12T20:54:33.820

1 Set of smooth curves on the Hilbert scheme is open. H 2015-07-28T20:17:44.460

1 Bertini-type theorem in positive characteristic 2015-10-04T00:25:14.287

1 Smoothness of the incicence correspondence associated to the join of two varieties 2016-02-27T11:00:58.920

1 Quotient of two smooth functions extension 2016-05-06T22:48:47.333

1 Smoothness of the solution of 1D diffusion equation 2017-03-15T05:15:57.493

1 Gevrey estimate of derivatives 2017-04-27T13:45:55.997

1 Smoothing in linear hyperbolic equations 2017-05-21T13:29:25.280

1 Estimate for de Bruijn function with small fixed smoothness bound 2017-12-12T04:32:12.977

1 Uniqueness of tangent space given local injectivity of orthogonal projection onto it 2018-01-26T20:42:09.767

0 Non Smooth K3 surface? 2012-10-11T05:13:40.260

0 Can a smooth function on a cross be extended to the whole plane? 2014-09-23T10:57:32.607

0 Gluing submanifolds along their common boundary 2015-02-04T09:00:41.107

0 Smoothness of a power of smooth non-negative function 2015-08-09T12:46:39.187

0 Composition algebra of Gevrey function for $s<1$ 2015-10-09T13:59:01.913

0 Unit sphere of a norm is a submanifold implies the norm is smooth? 2015-12-13T21:43:33.200

0 Elegant / Canonical way to Extend Integer Iterates of a Function to a Real Parameter 2017-11-19T02:34:29.330

-1 Glueing smooth functions give a smooth function if reparametrized 2015-05-07T15:52:09.880