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15
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research in module theory

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#reference-request #modules
301
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Example of von Neumann regular ring

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#abstract-algebra #ring-theory #modules
295
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Determine the ring of endomorphisms $E$ for the $R$-module $\frac{R}{I}$, where $I$ is an ideal of $R$

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#abstract-algebra #ring-theory #modules #ideals
81
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Non freely presented module

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#abstract-algebra #commutative-algebra #modules
149
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On Clifford's Theorem's proof (Zimmerman)

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#abstract-algebra #modules #representation-theory
70
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How can I induce an exact sequence?

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#abstract-algebra #modules #ideals #exact-sequence
163
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Simple modules over $F[x]$ are the $F[x]/I$ where $I$ is a prime ideal

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#modules
74
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$f:R \times R \rightarrow R \times R \times R$ is a R-module homomorphism. Prove f is not surjective.

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#linear-algebra #modules #ring-homomorphism
55
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About free modules

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#abstract-algebra #ring-theory #modules
1.9k
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Show $\mathbb{Q}$ is not a projective $\mathbb{Z}$ module.

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#ring-theory #modules #homological-algebra #projective-module
193
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Given Pullback of $R$-modules, show that if $f$ is injective, then $\alpha$ is injective

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#commutative-algebra #modules #pullback
118
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Matrix ring over a semi-simple algebra

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#abstract-algebra #modules #semi-simple-rings
101
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Showing something is a projective $R$-module

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#abstract-algebra #modules #projective-module
68
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Semisimple modules

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#modules #representation-theory
98
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Find a decomposition of vector space as direct sum of five modules

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#linear-algebra #vector-spaces #modules

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