$C^1$ Lipschitz function linear growth Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Approximate continous function with linear growth condition by Lipschitz functionWhy is this function not locally Lipschitz?Classify the growth of functions and find a more general growth functionLipschitz/Hölder continuity of cosine functionLinear functions $mathbbC^nlongrightarrowmathbbC^m$ are Lipschitz continousLipschitz Continuity For a Vector Function.Some questions about function's growth.Linear function: relation between linearity and continuityDifferentiable Manifolds, Metric Space Structure, Lipschitz ContinuityDifference between “Rate of growth of a function” and “Order of growth of a function”
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$C^1$ Lipschitz function linear growth
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Approximate continous function with linear growth condition by Lipschitz functionWhy is this function not locally Lipschitz?Classify the growth of functions and find a more general growth functionLipschitz/Hölder continuity of cosine functionLinear functions $mathbbC^nlongrightarrowmathbbC^m$ are Lipschitz continousLipschitz Continuity For a Vector Function.Some questions about function's growth.Linear function: relation between linearity and continuityDifferentiable Manifolds, Metric Space Structure, Lipschitz ContinuityDifference between “Rate of growth of a function” and “Order of growth of a function”
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I would like to know how to prove that a $C^1$ Lipschitz function has linear growth. (Actually I don't even know if it is true, it is a question in my exam – it says prove that, so it means it is true).
Thanks in advance.
analysis
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add a comment |
$begingroup$
I would like to know how to prove that a $C^1$ Lipschitz function has linear growth. (Actually I don't even know if it is true, it is a question in my exam – it says prove that, so it means it is true).
Thanks in advance.
analysis
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$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45
add a comment |
$begingroup$
I would like to know how to prove that a $C^1$ Lipschitz function has linear growth. (Actually I don't even know if it is true, it is a question in my exam – it says prove that, so it means it is true).
Thanks in advance.
analysis
$endgroup$
I would like to know how to prove that a $C^1$ Lipschitz function has linear growth. (Actually I don't even know if it is true, it is a question in my exam – it says prove that, so it means it is true).
Thanks in advance.
analysis
analysis
edited Mar 27 at 19:42
Bernard
124k742117
124k742117
asked Mar 27 at 19:40
Minkowski YaacovMinkowski Yaacov
113
113
$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45
add a comment |
$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45
$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
No need for $C^1$:
$$fracf(x)1+lefracf(x)-f(0)1+lefrac) + 1+le L+|f(0)|.$$
$endgroup$
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
add a comment |
Your Answer
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
No need for $C^1$:
$$fracf(x)1+lefracf(x)-f(0)1+lefrac) + 1+le L+|f(0)|.$$
$endgroup$
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
add a comment |
$begingroup$
No need for $C^1$:
$$fracf(x)1+lefracf(x)-f(0)1+lefrac) + 1+le L+|f(0)|.$$
$endgroup$
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
add a comment |
$begingroup$
No need for $C^1$:
$$fracf(x)1+lefracf(x)-f(0)1+lefrac) + 1+le L+|f(0)|.$$
$endgroup$
No need for $C^1$:
$$fracf(x)1+lefracf(x)-f(0)1+lefrac) + 1+le L+|f(0)|.$$
answered Mar 27 at 20:47
amsmathamsmath
3,441421
3,441421
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
add a comment |
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
$begingroup$
thanks but i just realize that i wanted to proof the opposite: that a function with linear growth is C^1 and Lipschitz. I'm sorry, my bad.
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:51
1
1
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
Then ask a new question, upvote and check my answer.
$endgroup$
– amsmath
Mar 27 at 20:54
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
$begingroup$
But I can answer that question right away: no. For a very simple reason: $|f(x)|le k(1+|x|)$ just means that the graph of $f$ is contained in some sector. But it can be anything there. Even completely non-continuous.
$endgroup$
– amsmath
Mar 27 at 20:59
add a comment |
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$begingroup$
By "linear growth" do you mean that $tfracf(x)$ is bounded for $|x|>1$?
$endgroup$
– amsmath
Mar 27 at 20:40
$begingroup$
yes, more precisely |f(x)|<=k(1+|x|)
$endgroup$
– Minkowski Yaacov
Mar 27 at 20:45