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1 Correction to: Calc. Var. (2019) 58:57 https://doi.org/10.1007/s00526-019-1499-y
In [1], we studied the existence of ground state solutions for a fractional Kirchhoff problem with exponential growth. The correct statement of Lemma 3.3 in [1] is the following.
Lemma 3.3
Assume that \((M_2)\), \((f_2)\) and \((f_6)\) hold. Then
The proof of this lemma is the same as in [1] and it reduces to replacing \(\frac{\alpha _{N,s}}{\alpha _0}\) by \((\frac{\alpha _{N,s}}{\alpha _0})^{(N-s)/s}\).
Accordingly, the related parts which used the result of Lemma 3.3 should be corrected. Hence, in the proof of Lemma 4.1,
should be corrected as follows
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On page 1 line 7, in Abstract, \(\exp (\alpha t^2)\) should be replaced with \(\exp (\alpha |t|^{N/(N-s)})\).
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On page 6 line 5, the correct definition of \(\lambda ^*\) in \((f_3)\) is
$$\begin{aligned} \lambda ^*:=\inf _{u\in W_0^{s,N/s}(\Omega )\setminus \{0\}} \frac{\Vert u\Vert ^{\theta N /s}}{\Vert u\Vert _{L^{\theta N/s}(\Omega )}^{\theta N/s}}>0. \end{aligned}$$ -
On page 6 line 12, in assumption \((f_6)\), \(\frac{\alpha _{N,s}}{\alpha _0}\) should be replaced with \((\frac{\alpha _{N,s}}{\alpha _0})^{(N-s)/s}\).
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On page 18 lines 7 and 8, \(\Vert u_n\Vert ^{N/s}\) should be replaced by \(\Vert u_n\Vert ^{N/(N-s)}\).
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On page 18 line-11, the estimate of \(\left| \int _{\Omega }f(x,u_n)u_ndx\right| \) should be corrected as follows
$$\begin{aligned} \left| \int _\Omega f(x,u_n)u_ndx\right|\le & {} C\left( \int _\Omega |u_n|^{\theta N/s}dx +\int _\Omega |u_n|\exp (\alpha |u_n|^{N/(N-s)})dx\right) \\\le & {} C\left( \Vert u_n\Vert _{L^{\frac{\theta N}{s}}(\Omega )}^{\theta N/s} +\Vert u_n\Vert _{L^{\frac{q}{q-1}}(\Omega )}\right. \\&\left( \int _{\Omega }\exp [q\alpha \Vert u_n\Vert ^{N/(N-s)} (u_n/\Vert u_n\Vert )^{N/(N-s)}]dx\right) ^{\frac{1}{q}}\\\le & {} C\left( \Vert u_n\Vert _{L^{\frac{\theta N}{s}}(\Omega )}^{\theta N/s} +\Vert u_n\Vert _{L^{\frac{q}{q-1}}(\Omega )}\right) \rightarrow 0. \end{aligned}$$ -
On page 20 line 5, replace \(v_0, u_0\) by v, u, respectively.
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On page 20 line 7, estimate (4.8) should be replaced by
$$\begin{aligned} \sup _{n\in \mathbb {N}}\int _\Omega \exp (\alpha ^{\prime } v_n^{N/(N-s)}) dx<\infty ,\ \ \forall \ \alpha ^{\prime }<\frac{\alpha _{N,s}}{(1-\Vert v\Vert ^{N/s})^{s/(N-s)}}. \end{aligned}$$ -
On page 20 line-8, the inequality should be corrected as follows
$$\begin{aligned} \xi ^{N/s}<\frac{(\alpha _{N,s}/\alpha _0)^{(N-s)/s}}{1-\Vert v\Vert ^{N/s}}. \end{aligned}$$ -
On page 20 line-6, the inequality should be corrected as follows
$$\begin{aligned} \alpha _0\Vert u_n\Vert ^{N/(N-s)}<\alpha ^{\prime \prime } <\frac{\alpha _{N,s}}{(1-\Vert v\Vert ^{N/s})^{s/(N-s)}}. \end{aligned}$$ -
On page 20 line-4, the inequality should be corrected as follows
$$\begin{aligned} \nu \alpha \Vert u_n\Vert ^{N/(N-s)}\le \alpha ^{\prime \prime } <\frac{\alpha _{N,s}}{(1-\Vert v\Vert ^{N/s})^{s/(N-s)}}. \end{aligned}$$ -
On page 21 line 3, replace \(\Vert u_n\Vert _{L^{\frac{N\theta }{s}}(\Omega )}^{N\theta /s}\) by \(\Vert u_n-u\Vert _{L^{\frac{N\theta }{s}}(\Omega )}^{N\theta /s}\).
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On page 21 line 11, replace \(\Vert v\Vert \) by \(\Vert v\Vert ^{p-1}\).
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On page 21 line-6, replace \(\varepsilon \) by \(\varphi \).
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On page 22 line-11, in the estimate of \(\mathcal {I}_\lambda (u)\), there is missed the factor \(\frac{s}{N}\) before \(\frac{\mathscr {M}(t_*)}{t_*^{\theta }}\). Similarly, in the definition of g(t), there is missed the factor \(\frac{s}{N}\) before \(\frac{\mathscr {M}(t_*)}{t_*^{\theta }}\).
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On page 22 line-1, \(t_{\max }\) should be corrected as follows
$$\begin{aligned} t_{\mathrm{max}}=\left( \frac{\mathscr {M}(t_*)\theta }{C_{N,s} t_*^\theta \lambda }\right) ^{\frac{s}{sq-N\theta }}>0, \end{aligned}$$and \(\Lambda ^*\) should be replaced by
$$\begin{aligned} \Lambda ^*=\frac{\mathscr {M}(t_*)\theta }{C_{N,s}t_*^{\theta }\widetilde{\rho }_1^{q-\frac{N\theta }{s}}}. \end{aligned}$$ -
On page 25 line 12, \(\widetilde{\rho }_\lambda \) should be corrected as follows
$$\begin{aligned} \widetilde{\rho }_\lambda :=\left( \frac{\mathscr {M}(t_*)\theta }{C_{N,s}t_*^\theta \lambda }\right) ^{\frac{s}{sq-N\theta }}. \end{aligned}$$
Reference
Mingqi, X., Rădulescu, V.D., Zhang, B.: Fractional Kirchhoff problems with critical Trudinger–Moser nonlinearity. Calc. Var. Partial Differ. Equ. 58(2), 57 (2019)
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Mingqi, X., Rădulescu, V.D. & Zhang, B. Correction to: Fractional Kirchhoff problems with critical Trudinger–Moser nonlinearity. Calc. Var. 58, 140 (2019). https://doi.org/10.1007/s00526-019-1550-z
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DOI: https://doi.org/10.1007/s00526-019-1550-z