Question

Generalizing an implicit function theorem for formal power series

score 364 · Answer 1 · 2026-04-13 02:38:06

364

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Generalizing an implicit function theorem for formal power series

Published on 13 Apr 2026 - 2:38

score 112 · Answer 2 · 2026-04-16 12:17:52

112

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Is $A[[x_1,x_2,\dots]]$ flat over $A[x_1,x_2,\dots]$? ($A$ noetherian and commutative)

Published on 16 Apr 2026 - 12:17

score 540 · Answer 3 · 2026-04-14 17:51:01

540

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Relationship between $p$-adic numbers and analytic continuation of $1+x+x^2+x^3+...$

Published on 14 Apr 2026 - 17:51

score 374 · Answer 4 · 2026-04-16 13:23:18

374

Views

Formal power series rings and p-adic solenoids

Published on 16 Apr 2026 - 13:23

score 134 · Answer 5 · 2026-04-16 06:18:14

134

Views

Using "formal" formulas to get non-formal results

Published on 16 Apr 2026 - 6:18

score 214 · Answer 6 · 2026-04-14 01:21:11

214

Views

Associativity of formal group law in elliptic curves

Published on 14 Apr 2026 - 1:21

score 115 · Answer 7 · 2026-04-16 18:17:25

115

Views

What is the difference between $K[X_1, \ldots, X_{m - 1}]\color{blue}{[X]}$ and $K[X_1, \ldots, X_{m - 1}]\color{blue}{[X_{m}]}$?

Published on 16 Apr 2026 - 18:17

score 36 · Answer 8 · 2026-04-17 08:44:19

36

Views

Involutions in $\mathbb{F}_p[[x]]$

Published on 17 Apr 2026 - 8:44

score 82 · Answer 9 · 2026-04-12 23:28:47

82

Views

Power series: convergence on right-open interval

Published on 12 Apr 2026 - 23:28

score 95 · Answer 10 · 2026-04-16 17:27:32

95

Views

Find the radius of convergence of summesion (n=0 to ∞)(an*x^n), where an=[sin(n!)/n!] and ao=0?

Published on 16 Apr 2026 - 17:27

score 341 · Answer 11 · 2026-04-14 19:40:57

341

Views

Is this a maximal ideal of the ring of formal power series?

Published on 14 Apr 2026 - 19:40

score 56 · Answer 12 · 2026-05-10 15:47:03

56

Views

Are coefficients of a formal deformation bilinear?

Published on 10 May 2026 - 15:47

score 75 · Answer 13 · 2026-04-12 03:52:18

75

Views

The fraction field of the ring of formal power series and a splitting field

Published on 12 Apr 2026 - 3:52

score 150 · Answer 14 · 2026-04-14 07:12:54

150

Views

Hadamard quotient of D-finite series

Published on 14 Apr 2026 - 7:12

score 59 · Answer 15 · 2026-04-16 00:59:48

59

Views

Determine whether $F^\times$ has a cyclic subgroup of order $10$ where $F=\mathbb{R}((t)),\mathbb{C}((t))$

Published on 16 Apr 2026 - 0:59

List Question

Generalizing an implicit function theorem for formal power series

Is $A[[x_1,x_2,\dots]]$ flat over $A[x_1,x_2,\dots]$? ($A$ noetherian and commutative)

Relationship between $p$-adic numbers and analytic continuation of $1+x+x^2+x^3+...$

Formal power series rings and p-adic solenoids

Using "formal" formulas to get non-formal results

Associativity of formal group law in elliptic curves

What is the difference between $K[X_1, \ldots, X_{m - 1}]\color{blue}{[X]}$ and $K[X_1, \ldots, X_{m - 1}]\color{blue}{[X_{m}]}$?

Involutions in $\mathbb{F}_p[[x]]$

Power series: convergence on right-open interval

Find the radius of convergence of summesion (n=0 to ∞)(an*x^n), where an=[sin(n!)/n!] and ao=0?

Is this a maximal ideal of the ring of formal power series?

Are coefficients of a formal deformation bilinear?

The fraction field of the ring of formal power series and a splitting field

Hadamard quotient of D-finite series

Determine whether $F^\times$ has a cyclic subgroup of order $10$ where $F=\mathbb{R}((t)),\mathbb{C}((t))$

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