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2018-09-19 08:20:46 +0200 | asked a question | Enumerating prime ideals in SAGE Given a number Field K and its ring of integers $O_K$, I want to enumerate prime ideals and calculate some quantities in $O_K$ modulo the prime ideals. This computation depends on the size of the ideal. What I did earlier was taking a prime number, creating its ideal, factorizing it and using the factors as prime ideals. But this way I think I am doing very large computations because the norm would be very high. I want to enumerate prime ideals below a certain norm in SAGE. What can I do? |
2018-08-10 15:54:14 +0200 | asked a question | Algorithm for computing Class Group and Class Number? I wanted to know what procedure does SAGE use for computing class numbers. I typed sage : K = NumberField(x^2 + x + 1) sage : K.class_number? After that I got the documentation and further I opened this file ~/SageMath/local/lib/python2.7/site-packages/sage/rings/number_field/number_field.py In that I looked for the place where I can find the class number snippet. It turns out that sage returns the order of class group, so I looked for class group snippet. proof = proof_flag(proof) But I couldn't understand where is the implementation of algorithm. Can anyone help me from here to reach where I can get the algorithm? |
2018-06-28 23:26:08 +0200 | received badge | ● Editor (source) |
2018-06-28 23:18:27 +0200 | asked a question | TypeError : Object not iterable I am trying to build the multiplicative group of a finite field. I define a finite field, its multiplicative group, and a conversion map from the finite field to its multiplicative group as follows: Up to here, everything is fine. Now there is an error when trying to use phi: What does this mean? |
2018-06-28 23:15:47 +0200 | asked a question | Object is not iterable I am facing a problem while doing following on terminal in Sage sage: Fin_field = GF(49) sage: Mult_grp = AbelianGroupWithValues([Fin_field.gen()], n =1 , gens_order = [48], values_group=Fin_field) sage: phi = Fin_field.coerce_map_from(Mult_grp) Upto here, everything is fine. Now there is an error in the next line - sage: phi(Fin_field.gen()) TypeError: 'sage.rings.finite_rings.element_givaro.FiniteField_givaroElement' object is not iterable What does this mean? |
2018-06-27 02:49:42 +0200 | asked a question | Quotient Group construction I have created a group in the category - finite enumerated commutative subgroup. But it doesn't have an option of quotient group ( it has but shows Not Implemented Error) I wanted to know why implementing a quotient group is not possible if quotient ring is done already? Actually, I was thinking to implement it myself, but I thought it will be good to ask here first if people have tried that. Also, does anyone know how I can track the current progress being done in sage. |
2018-06-25 16:54:16 +0200 | commented answer | Multiplicative Group of a field How to apply it to one's installation? Thanks! |
2018-06-25 16:49:15 +0200 | received badge | ● Supporter (source) |
2018-06-25 16:33:56 +0200 | asked a question | Offline vs CoCalc I am currently working with sage offline version (downloaded version). What difference does it make if I use CoCalc. Does offline version supports all features? |
2018-06-24 20:44:16 +0200 | asked a question | Multiplicative Group of a field I have a finite field with me. I want to work with a multiplicative group of it. I only found that it is possible to do this with Z modulo n in Sage. But my fields are finite extensions of such a field. If someone has a way to deal with, please help! |
2018-06-21 23:18:31 +0200 | commented answer | get multiplicative subgroup of Z/nZ Yeah this surely works for the case when R is defined as Integers(something). Is there any method to get it for a general finite field for instance, a residue field? |
2018-06-21 15:54:57 +0200 | asked a question | Killed Process Meaning? I tried computing this - sage : K = CyclotomicField(37^5) But after almost a minute, the process just popped up "Killed" and automatically exited sage session. Why does that happen and what is the meaning? Is there any alternative way to do this? |
2018-06-17 11:51:27 +0200 | asked a question | subgroup of unit group of number field (without calculating unit group)? https://ask.sagemath.org/question/272... There is a similar question in this link. But I want to know whether I can do this (without knowing the unit group). So, I have collected a list of elements (from another code), which will be generators of the subgroup I want to generate. What should I do? |
2018-06-13 11:20:31 +0200 | received badge | ● Student (source) |
2018-06-12 23:40:43 +0200 | asked a question | Algorithm for defining polynomial of an unramified extension? I wanted to know by what algorithm sage finds a defining polynomial of an unramified extension of p-adic numbers? |
2018-06-12 23:40:43 +0200 | asked a question | Algorithm for finding a defining polynomial for an unramified extension? I wanted to know by what algorithm sage finds a defining polynomial of an unramified extension of p-adic numbers? |