From b88c03348621bf9ec251468127e4793a3587d1e6 Mon Sep 17 00:00:00 2001
From: lisavdlinde <80888204+lisavdlinde@users.noreply.github.com>
Date: Thu, 12 Feb 2026 12:18:09 +0100
Subject: [PATCH 1/2] Fix axpy! function to use PArrays methods

---
 src/Algebra.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Algebra.jl b/src/Algebra.jl
index 4e22edc..cef4982 100644
--- a/src/Algebra.jl
+++ b/src/Algebra.jl
@@ -40,7 +40,7 @@ end
 # PartitionedArrays extras
 
 function LinearAlgebra.axpy!(α,x::PVector,y::PVector)
-  @check ( partition(axes(x,1)) === partition(axes(y,1)) || ( matching_own_indices(axes(x,1),axes(y,1)) && matching_ghost_indices(axes(x,1),axes(y,1)) ) 
+  @check ( partition(axes(x,1)) === partition(axes(y,1)) || ( PArrays.matching_own_indices(axes(x,1),axes(y,1)) && PArrays.matching_ghost_indices(axes(x,1),axes(y,1)) ) 
   map(partition(x),partition(y)) do x,y
     LinearAlgebra.axpy!(α,x,y)
   end

From ea7520ea4db324b48082ac3a19f8f8dd35ae1308 Mon Sep 17 00:00:00 2001
From: lisavdlinde <80888204+lisavdlinde@users.noreply.github.com>
Date: Thu, 12 Feb 2026 12:26:44 +0100
Subject: [PATCH 2/2] Fix syntax error in axpy! function checks

---
 src/Algebra.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Algebra.jl b/src/Algebra.jl
index cef4982..6e1bb34 100644
--- a/src/Algebra.jl
+++ b/src/Algebra.jl
@@ -40,7 +40,7 @@ end
 # PartitionedArrays extras
 
 function LinearAlgebra.axpy!(α,x::PVector,y::PVector)
-  @check ( partition(axes(x,1)) === partition(axes(y,1)) || ( PArrays.matching_own_indices(axes(x,1),axes(y,1)) && PArrays.matching_ghost_indices(axes(x,1),axes(y,1)) ) 
+  @check ( partition(axes(x,1)) === partition(axes(y,1)) || ( PArrays.matching_own_indices(axes(x,1),axes(y,1)) && PArrays.matching_ghost_indices(axes(x,1),axes(y,1)) )) 
   map(partition(x),partition(y)) do x,y
     LinearAlgebra.axpy!(α,x,y)
   end