Question

What is the classification of 1-dimensional commutative formal group laws over $\mathbb{Z}$ up to isomorphism?

score 304 · Answer 1 · 2026-03-01 02:33:00

304

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What is the classification of 1-dimensional commutative formal group laws over $\mathbb{Z}$ up to isomorphism?

Published on 01 Mar 2026 - 2:33

score 105 · Answer 2 · 2026-02-23 15:34:51

105

Views

Is $\Bbb Z[x_1,x_2,\Bbb…]/(x_ix_j- {i+j \choose i}x_{i+j})$ a noetherian ring?

Published on 23 Feb 2026 - 15:34

score 167 · Answer 3 · 2026-02-23 15:35:02

167

Views

Is $ \frac{x+y}{x^3 y^3 - x^3 y - x y^3 + 2 xy + 1} $ a formal group law?

Published on 23 Feb 2026 - 15:35

score 101 · Answer 4 · 2026-03-01 02:34:36

101

Views

Formal group law and Koenigs function conjecture !?

Published on 01 Mar 2026 - 2:34

score 125 · Answer 5 · 2026-03-01 02:29:28

125

Views

Height of a formal group law homomorphism

Published on 01 Mar 2026 - 2:29

score 122 · Answer 6 · 2026-03-01 02:32:43

122

Views

The formal group law of height $ \ 2$ or $ \ 3 $ over $\mathbb{F}_p$

Published on 01 Mar 2026 - 2:32

score 353 · Answer 7 · 2026-03-01 02:31:43

353

Views

Definition of an invariant differential form on a formal group

Published on 01 Mar 2026 - 2:31

score 121 · Answer 8 · 2026-03-01 02:33:15

121

Views

Why do we say always "$1$-dimensional formal group law"?

Published on 01 Mar 2026 - 2:33

score 429 · Answer 9 · 2026-03-01 02:32:30

429

Views

Showing the center of an endomorphism ring is a direct summand

Published on 01 Mar 2026 - 2:32

score 97 · Answer 10 · 2019-10-17 06:02:54

97

Views

Are formal groups associated to various groups different?

Published on 17 Oct 2019 - 6:02

score 101 · Answer 11 · 2026-03-19 16:53:43

101

Views

What is the relation between Lie algebra/ group and formal group laws

Published on 19 Mar 2026 - 16:53

score 39 · Answer 12 · 2026-03-19 16:52:34

Can we consider formal power series $P(t)=\sum_{m=0}^{\infty} \binom{2m}{m} \left[m^l(4t-1)^l+F_l(t) \right]t^m$ as formal group law?

score 61 · Answer 13 · 2026-03-23 23:31:24

61

Views

What role does ring $R$ play in formal group?

Published on 23 Mar 2026 - 23:31

score 86 · Answer 14 · 2020-01-06 00:53:29

86

Views

Why a particular choice of power series $f$ working for Lubin-Tate theory?

Published on 06 Jan 2020 - 0:53

score 581 · Answer 15 · 2020-01-06 08:31:59

581

Views

Formal group laws VS Formal Lie groups

Published on 06 Jan 2020 - 8:31

List Question

What is the classification of 1-dimensional commutative formal group laws over $\mathbb{Z}$ up to isomorphism?

Is $\Bbb Z[x_1,x_2,\Bbb…]/(x_ix_j- {i+j \choose i}x_{i+j})$ a noetherian ring?

Is $ \frac{x+y}{x^3 y^3 - x^3 y - x y^3 + 2 xy + 1} $ a formal group law?

Formal group law and Koenigs function conjecture !?

Height of a formal group law homomorphism

The formal group law of height $ \ 2$ or $ \ 3 $ over $\mathbb{F}_p$

Definition of an invariant differential form on a formal group

Why do we say always "$1$-dimensional formal group law"?

Showing the center of an endomorphism ring is a direct summand

Are formal groups associated to various groups different?

What is the relation between Lie algebra/ group and formal group laws

Can we consider formal power series $P(t)=\sum_{m=0}^{\infty} \binom{2m}{m} \left[m^l(4t-1)^l+F_l(t) \right]t^m$ as formal group law?

What role does ring $R$ play in formal group?

Why a particular choice of power series $f$ working for Lubin-Tate theory?

Formal group laws VS Formal Lie groups

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