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Flaky CI test: OverflowError in hom_frobenius.py

c: elliptic curves

t: bug

Status: Open.

Bug

#42623 In sagemath/sage;

· vincentmacri opened on Aug 4, 2026

Inverting symbolic matrix from NumPy complex array raises MACSYMA-QUIT error

t: bug

Status: Open.

#42608 In sagemath/sage;

· vivek41-glitch opened on Jul 31, 2026

Implement is_2isomorphic (Whitney 2-isomorphism) for graphs

c: graph theory

c: matroid theory

t: enhancement

Status: Open.

#42595 In sagemath/sage;

· gmou3 opened on Jul 29, 2026

EllipticCurveHom_fractional fails when the characteristic divides the denominator

Status: Open.

#42576 In sagemath/sage;

· harrshita123 opened on Jul 24, 2026

Graph.treewidth is slow and sometimes produces invalid tree decompositions

c: graph theory

t: enhancement

Status: Open.

#42572 In sagemath/sage;

· Ordoviz opened on Jul 23, 2026

Segfault when finding polynomial roots in @interact

t: bug

Status: Open.

#42567 In sagemath/sage;

· DaveWitteMorris opened on Jul 21, 2026

GraphicMatroid.is_isomorphic gives asymmetric/incorrect result with multiedges

c: matroid theory

t: bug

Status: Open.

#42556 In sagemath/sage;

· slnkno3 opened on Jul 19, 2026

is_positive_semidefinite() throws ZeroDivisionError: division by zero in algebraic field

t: bug

Status: Open.

#42545 In sagemath/sage;

· virchau13 opened on Jul 15, 2026

Sparse echelon form over QQ is mutable and shared with the cache (#10543 was fixed for dense only)

t: bug

Status: Open.

#42531 In sagemath/sage;

· cxzhong opened on Jul 13, 2026

IntegerVector of length 0 doesn't interact well with max constraints

t: bug

Status: Open.

#42527 In sagemath/sage;

· mmuddasani opened on Jul 11, 2026

add some documentation on how to install an optional package

Status: Open.

#42522 In sagemath/sage;

· dimpase opened on Jul 10, 2026

Generalized Tamari constructors do not validate documented parameter domains

Status: Open.

#42502 In sagemath/sage;

· harrshita123 opened on Jul 7, 2026