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15
60
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Statement unclear-"Cyclotomic fields and zeta values"

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#p-adic-number-theory #formal-power-series #cyclotomic-fields
85
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Cohomology of $BU(n)$

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#homology-cohomology #formal-power-series #classifying-spaces
59
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Convergence of infinite products of formal power series

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#sequences-and-series #convergence-divergence #infinite-product #formal-power-series
70
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if $f$ has a non-zero constant term, then it has an inverse as a power series

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#complex-analysis #proof-explanation #formal-power-series
78
Views

What is the most efficient way to find the coefficient before the $n$-th term in this generating function?

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#power-series #binomial-coefficients #generating-functions #formal-power-series #infinite-matrices
54
Views

Quotient module $\mathscr{O}[[X]] / \langle X^t , \pi^r \rangle $ is of finite-length

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#abstract-algebra #modules #ideals #formal-power-series
77
Views

About the formal exponential power series over an arbitrary field of characteristic 0

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#abstract-algebra #formal-power-series
26
Views

Upper bound for modulus of the coefficients of a power series

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#complex-analysis #proof-explanation #formal-power-series
84
Views

Why is $\wedge ^2 E[p] \cong \mu_p$?

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#algebraic-geometry #algebraic-number-theory #elliptic-curves #formal-power-series #torsion-groups
70
Views

Are there "brute force" method for Dong's lemma?

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#formal-power-series
60
Views

If $A\to B$ is an integral ring morphism, so is $A[[x]]\to B[[x]]$?

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#commutative-algebra #formal-power-series
75
Views

Are modules for the ring of formal power series representations of a certain object?

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#category-theory #modules #representation-theory #monoid #formal-power-series
42
Views

Convergence of $f(x)= \sum_{n=0}^{\infty} x^{2^n}$

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#sequences-and-series #convergence-divergence #formal-power-series
81
Views

Compute the power series of $\frac{2-6x+x^2}{1-3x}$

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#formal-power-series
25
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Extract the coefficients of formal Laurent series in characteristic $p$

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#derivatives #finite-fields #laurent-series #formal-power-series #positive-characteristic

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