Xiaosong Peng's user avatar
Xiaosong Peng's user avatar
Xiaosong Peng's user avatar
Xiaosong Peng
  • Member for 8 years, 4 months
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  • LZU
5 votes
2 answers
437 views

How to define cohomology of algebraic structures?

3 votes
0 answers
235 views

Derivations of algebras graded by a group

4 votes
0 answers
63 views

Why does this cluster tilting object form a local slice?

1 vote
0 answers
55 views

Questions of the paper "PBW-pairs of varieties of linear algebras"

1 vote
0 answers
69 views

n-Gorenstein algebras and tilting modules

0 votes
0 answers
116 views

A question on the paper "The classification of algebras by dominant dimension"

0 votes
0 answers
178 views

Automorphisms of weighted quiver

1 vote
0 answers
332 views

Property of the syzygy functor of $\operatorname{\underline{mod}} A$

5 votes
2 answers
224 views

Properties of right rejective subcategories

1 vote
0 answers
44 views

How to get the properties of the functor $F$?

0 votes
0 answers
111 views

Some places I can't understand in the paper "Gendo-symmetric algebras, dominant dimensions and Gorenstein homological algebra"

3 votes
1 answer
353 views

Whether hom functor and socle (radical) are commutative?

2 votes
1 answer
119 views

How to get that $\Omega^2_{\Lambda}(N) \cong \textrm{Hom}_A(M,Y)$?

1 vote
1 answer
154 views

How to get that one module is tilting iff the other one is?

4 votes
1 answer
230 views

Questions in the paper "The category of good modules over a quasi-hereditary algebra has almost split sequences"

2 votes
1 answer
115 views

Questions about dominant dimension

2 votes
0 answers
137 views

The induced equivalence of bimodules from Morita equivalence

0 votes
1 answer
217 views

Questions about Lowey length

0 votes
1 answer
124 views

Questions in the paper "Morita endomorphism algebras of generators"

1 vote
0 answers
33 views

How to get that $add(E)=add(\nu(E))$ equivalent to $add(soc(E))\cong add(top(E))$?

3 votes
1 answer
303 views

Whether Morita equivalence holds the following properties?

0 votes
1 answer
381 views

The projective and injective modules in tensor product of algebra

-1 votes
1 answer
116 views

How to show the following properties of $Coker(d^{-n-1})$?

1 vote
0 answers
120 views

Some questions in a paper of derived categoires and stable equivalence

1 vote
0 answers
88 views

How to get the following functor of derived equivalent categories?

2 votes
0 answers
104 views

Why $T'$ dosen't have projective direct summand?

0 votes
1 answer
77 views

How to get $I_i \in add(\nu_A(Q))$ for $1 \leq i \leq n$ by $Ext^{i}_A(S,S)=0$?

0 votes
0 answers
68 views

Is there a simple module $S$ satisfies the following conditions?

1 vote
1 answer
206 views

The projective modules of an algebra and the tilting module?

2 votes
1 answer
208 views

How to get $Hom_A(M,N) \cong Hom_{B^{op}}(Hom_A(N,T),Hom_A(M,T))$?