Diagonal subsequence converges at all points under these conditions












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I do not understand why the diagonal subsequence $g_n = f_{n,n}$ converges at any point $w_j$. for example, because $g_{n} (w_{20})$ it converges? From what I understand we would have ${ f_{1,1} (w_{20}), f_{2,2} (w_{20}) , f_{3,3} (w_{20}), ... }$. Why does it converge? If I'm wrong, someone can explain?










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    enter image description here



    I do not understand why the diagonal subsequence $g_n = f_{n,n}$ converges at any point $w_j$. for example, because $g_{n} (w_{20})$ it converges? From what I understand we would have ${ f_{1,1} (w_{20}), f_{2,2} (w_{20}) , f_{3,3} (w_{20}), ... }$. Why does it converge? If I'm wrong, someone can explain?










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      enter image description here



      I do not understand why the diagonal subsequence $g_n = f_{n,n}$ converges at any point $w_j$. for example, because $g_{n} (w_{20})$ it converges? From what I understand we would have ${ f_{1,1} (w_{20}), f_{2,2} (w_{20}) , f_{3,3} (w_{20}), ... }$. Why does it converge? If I'm wrong, someone can explain?










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      enter image description here



      I do not understand why the diagonal subsequence $g_n = f_{n,n}$ converges at any point $w_j$. for example, because $g_{n} (w_{20})$ it converges? From what I understand we would have ${ f_{1,1} (w_{20}), f_{2,2} (w_{20}) , f_{3,3} (w_{20}), ... }$. Why does it converge? If I'm wrong, someone can explain?







      complex-analysis






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      asked Nov 30 at 0:29









      Ricardo Freire

      392110




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          Except for the first 19 terms, the sequence $(g_n)$ is a subsequence of $(f_{n,20})$, which converges at $w_{20}$.






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          • More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
            – Ricardo Freire
            Nov 30 at 3:48










          • @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
            – Andreas Blass
            Nov 30 at 12:19











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          Except for the first 19 terms, the sequence $(g_n)$ is a subsequence of $(f_{n,20})$, which converges at $w_{20}$.






          share|cite|improve this answer





















          • More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
            – Ricardo Freire
            Nov 30 at 3:48










          • @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
            – Andreas Blass
            Nov 30 at 12:19
















          0














          Except for the first 19 terms, the sequence $(g_n)$ is a subsequence of $(f_{n,20})$, which converges at $w_{20}$.






          share|cite|improve this answer





















          • More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
            – Ricardo Freire
            Nov 30 at 3:48










          • @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
            – Andreas Blass
            Nov 30 at 12:19














          0












          0








          0






          Except for the first 19 terms, the sequence $(g_n)$ is a subsequence of $(f_{n,20})$, which converges at $w_{20}$.






          share|cite|improve this answer












          Except for the first 19 terms, the sequence $(g_n)$ is a subsequence of $(f_{n,20})$, which converges at $w_{20}$.







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Nov 30 at 0:33









          Andreas Blass

          49.1k351106




          49.1k351106












          • More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
            – Ricardo Freire
            Nov 30 at 3:48










          • @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
            – Andreas Blass
            Nov 30 at 12:19


















          • More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
            – Ricardo Freire
            Nov 30 at 3:48










          • @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
            – Andreas Blass
            Nov 30 at 12:19
















          More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
          – Ricardo Freire
          Nov 30 at 3:48




          More suppose the case $g_3(w_5)$, we have by the construction that $ g_5(w_5) $ is convergent, and $ g_5 (w_5) $ is only a subsequence of $ g_3 (w_5)$. How to guarantee the convergence of $ g_3 (w_5)$ entire?
          – Ricardo Freire
          Nov 30 at 3:48












          @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
          – Andreas Blass
          Nov 30 at 12:19




          @RicardoFreire I don't understand your comment, since $g_3(w_5)$ isn't a sequence.
          – Andreas Blass
          Nov 30 at 12:19


















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