Question

If $\,f$ and $g$ are continuous with compact support then $f*g$ (convolution ) is also continuous with compact support

score 770 · Answer 1 · 2026-03-26 16:04:54

770

Views

If $\,f$ and $g$ are continuous with compact support then $f*g$ (convolution ) is also continuous with compact support

Published on 26 Mar 2026 - 16:04

score 27 · Answer 2 · 2026-04-01 11:02:53

27

Views

Does a continuous function of real numbers preserve continuity of random variables?

Published on 01 Apr 2026 - 11:02

score 453 · Answer 3 · 2026-03-25 19:01:09

453

Views

Spivak Differential Geometry 1 Chapter 1 Problem 8

Published on 25 Mar 2026 - 19:01

score 2.9k · Answer 4 · 2026-03-25 03:19:24

2.9k

Views

If a function is continuous everywhere, but undefined at one point, is it still continuous?

Published on 25 Mar 2026 - 3:19

score 64 · Answer 5 · 2026-03-26 08:23:07

64

Views

Prove continuity by definition and epsilon-delta property. $g(x)=\sqrt{2x+1} , x_0=-0.5$

Published on 26 Mar 2026 - 8:23

score 33 · Answer 6 · 2026-03-25 03:22:48

33

Views

Need some help with continuity for the following piece-wise functions

Published on 25 Mar 2026 - 3:22

score 230 · Answer 7 · 2026-03-26 03:12:33

230

Views

Proving that continuity and the lim sup of a given set being 0 are equivalent

Published on 26 Mar 2026 - 3:12

score 37 · Answer 8 · 2026-03-25 10:57:12

37

Views

Is there a formalised mathematics of sound?

Published on 25 Mar 2026 - 10:57

score 145 · Answer 9 · 2026-03-26 13:00:56

145

Views

How can a discontinuous function belong to $C_B^1(\Omega)$, the space of continuous functions $u$ with bounded derivatives?

Published on 26 Mar 2026 - 13:00

score 181 · Answer 10 · 2026-03-25 20:32:43

181

Views

Singular $n$-simplex, unknown notation, homology

Published on 25 Mar 2026 - 20:32

score 39 · Answer 11 · 2026-03-25 12:54:35

39

Views

How to show the continuity of the following operator?

Published on 25 Mar 2026 - 12:54

score 39 · Answer 12 · 2026-03-26 08:14:42

39

Views

Find $\delta(\varepsilon)$ function

Published on 26 Mar 2026 - 8:14

score 150 · Answer 13 · 2026-03-26 23:01:07

150

Views

Approximating a continuous function by a sawtooth function

Published on 26 Mar 2026 - 23:01

score 72 · Answer 14 · 2018-11-22 01:51:38

72

Views

Existence of one-to-one continuous function from $[0,1]$ to $(0,1)$, from $\Bbb R$ to $[0,1]$, from $\Bbb R$ to $(0,1)$, and from $(0,1]$ to $(0,1)$

Published on 22 Nov 2018 - 1:51

score 180 · Answer 15 · 2026-03-26 12:07:42

180

Views

Is there a continuous $f$ satisfying $f(f(x))=-x^3+x$?

Published on 26 Mar 2026 - 12:07

List Question

If $\,f$ and $g$ are continuous with compact support then $f*g$ (convolution ) is also continuous with compact support

Does a continuous function of real numbers preserve continuity of random variables?

Spivak Differential Geometry 1 Chapter 1 Problem 8

If a function is continuous everywhere, but undefined at one point, is it still continuous?

Prove continuity by definition and epsilon-delta property. $g(x)=\sqrt{2x+1} , x_0=-0.5$

Need some help with continuity for the following piece-wise functions

Proving that continuity and the lim sup of a given set being 0 are equivalent

Is there a formalised mathematics of sound?

How can a discontinuous function belong to $C_B^1(\Omega)$, the space of continuous functions $u$ with bounded derivatives?

Singular $n$-simplex, unknown notation, homology

How to show the continuity of the following operator?

Find $\delta(\varepsilon)$ function

Approximating a continuous function by a sawtooth function

Existence of one-to-one continuous function from $[0,1]$ to $(0,1)$, from $\Bbb R$ to $[0,1]$, from $\Bbb R$ to $(0,1)$, and from $(0,1]$ to $(0,1)$

Is there a continuous $f$ satisfying $f(f(x))=-x^3+x$?

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