Can banach spaces be taught without introducing the Metric space first?












1














In our curriculum in france we dive head first in the topology of banach spaces probably to set a standing ground for approaching series and sequences of functions,integrable function(includes dependence on a parameter),power series.
and i was wondering whether there was a book that is compatible with our curriculum.










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  • I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
    – rubikscube09
    Nov 20 '18 at 20:38










  • alright, but which book do you recommend?
    – Françoise Nicolas
    Nov 20 '18 at 21:39












  • What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
    – rubikscube09
    Nov 20 '18 at 21:43










  • Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
    – s.harp
    Nov 20 '18 at 21:44










  • eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
    – Françoise Nicolas
    Nov 20 '18 at 21:58
















1














In our curriculum in france we dive head first in the topology of banach spaces probably to set a standing ground for approaching series and sequences of functions,integrable function(includes dependence on a parameter),power series.
and i was wondering whether there was a book that is compatible with our curriculum.










share|cite|improve this question






















  • I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
    – rubikscube09
    Nov 20 '18 at 20:38










  • alright, but which book do you recommend?
    – Françoise Nicolas
    Nov 20 '18 at 21:39












  • What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
    – rubikscube09
    Nov 20 '18 at 21:43










  • Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
    – s.harp
    Nov 20 '18 at 21:44










  • eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
    – Françoise Nicolas
    Nov 20 '18 at 21:58














1












1








1







In our curriculum in france we dive head first in the topology of banach spaces probably to set a standing ground for approaching series and sequences of functions,integrable function(includes dependence on a parameter),power series.
and i was wondering whether there was a book that is compatible with our curriculum.










share|cite|improve this question













In our curriculum in france we dive head first in the topology of banach spaces probably to set a standing ground for approaching series and sequences of functions,integrable function(includes dependence on a parameter),power series.
and i was wondering whether there was a book that is compatible with our curriculum.







functional-analysis






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share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Nov 20 '18 at 19:18









Françoise Nicolas

185




185












  • I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
    – rubikscube09
    Nov 20 '18 at 20:38










  • alright, but which book do you recommend?
    – Françoise Nicolas
    Nov 20 '18 at 21:39












  • What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
    – rubikscube09
    Nov 20 '18 at 21:43










  • Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
    – s.harp
    Nov 20 '18 at 21:44










  • eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
    – Françoise Nicolas
    Nov 20 '18 at 21:58


















  • I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
    – rubikscube09
    Nov 20 '18 at 20:38










  • alright, but which book do you recommend?
    – Françoise Nicolas
    Nov 20 '18 at 21:39












  • What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
    – rubikscube09
    Nov 20 '18 at 21:43










  • Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
    – s.harp
    Nov 20 '18 at 21:44










  • eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
    – Françoise Nicolas
    Nov 20 '18 at 21:58
















I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
– rubikscube09
Nov 20 '18 at 20:38




I would say that learning about metric spaces before banach spaces is recommended. Many of the metric space topology results are used when proving theorems about Banach spaces
– rubikscube09
Nov 20 '18 at 20:38












alright, but which book do you recommend?
– Françoise Nicolas
Nov 20 '18 at 21:39






alright, but which book do you recommend?
– Françoise Nicolas
Nov 20 '18 at 21:39














What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
– rubikscube09
Nov 20 '18 at 21:43




What topics are you familiar with? Assuming you are French, and have a solid real analysis background, I recommend "Functional Analysis, Sobolev Spaces and Partial Differential Equations" by Haim Brezis. The author (who is originally French) published a translation in English and it is very good. I am sure the French version is just as good if not better.
– rubikscube09
Nov 20 '18 at 21:43












Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
– s.harp
Nov 20 '18 at 21:44




Interestingly enough you never need to talk about Cauchy sequences in Banach space theory. eg you can take as defintion of completeness the condition that a space is isomorphic to its bidual via the canonical map.
– s.harp
Nov 20 '18 at 21:44












eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
– Françoise Nicolas
Nov 20 '18 at 21:58




eh i think there is a misunderstanding,i'm a second year and this is our very first experience into "functional analysis" or whatever it is o.o so far we've only did calculus,some abstract algebra and linear algebra
– Françoise Nicolas
Nov 20 '18 at 21:58










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